CN108933431A

CN108933431A - Starting protection circuit and starting protection system for nuclear power station turning motor

Info

Publication number: CN108933431A
Application number: CN201810579281.9A
Authority: CN
Inventors: 陈军; 梁霄; 陈海岳; 刘波; 许国兵; 王尧
Original assignee: China General Nuclear Power Corp; CGN Power Co Ltd; Daya Bay Nuclear Power Operations and Management Co Ltd; Lingdong Nuclear Power Co Ltd; Guangdong Nuclear Power Joint Venture Co Ltd
Current assignee: China General Nuclear Power Corp; CGN Power Co Ltd; Daya Bay Nuclear Power Operations and Management Co Ltd; Lingdong Nuclear Power Co Ltd; Guangdong Nuclear Power Joint Venture Co Ltd
Priority date: 2018-06-07
Filing date: 2018-06-07
Publication date: 2018-12-04
Anticipated expiration: 2038-06-07
Also published as: CN108933431B

Abstract

The invention belongs to million kilowatt nuclear power station power supply protection technical fields, provide a kind of starting protection circuit and starting protection system for million kilowatt nuclear power station turning motor；The starting protection circuit includes：Current supply circuit, protection location and control unit, wherein protection location is of coupled connections with control unit；Control unit includes drive module, the first DC power supply and execution module；Protection location includes reduced-voltage starting branch and total pressure operation branch；Reduced-voltage starting branch includes being connected in series：The main normally opened contact of the main normally opened contact of second contactor, resistance box and first contactor；The reduced-voltage starting that turning motor can be realized by reduced-voltage starting branch, stable nuclear power energy can be transmitted to nuclear power station turning motor by running branch by total pressure, to drive turning motor that can work normally；The problem of solving the starting protection lacked in traditional technology for turning motor through the invention, and then turning motor caused to be subject to damage.

Description

Starting protection circuit and starting protection system for nuclear power station turning motor

Technical field

The invention belongs to million kilowatt nuclear power station power supply protection technical fields, more particularly to one kind to be used for million kilowatt The starting protection circuit of nuclear power station turning motor and the starting protection system of million kilowatt nuclear power station turning motor.

Background technique

With the fast development of science and technology, nuclear power station electricity generation system is gradually in occupation of can not replace in modern industry life The effect in generation, since nuclear power station mainly generates a large amount of high-power nuclear power energy using nuclear fission, compared to traditional power generation side Formula, nuclear power station power generation have generated output is big, cost of electricity-generating is low and will not pollute many merits such as atmosphere, therefore nuclear power station send out Power technology has obtained significant progress in China；By taking the coastal developed regions in China as an example, generated electricity by nuclear power station caused by Nuclear power can have become most important power supply mode in the daily electricity consumption of people.

Although nuclear power station can generate a large amount of nuclear power energy using nuclear power technology, the operational safety of nuclear power station is always The most important focus of people at present, if nuclear power station breaks down in the process of running, then will be to ecological environment and people The security of the lives and property cause greatly to damage, therefore each electrical device in nuclear power station for ensure nuclear power station operation Safety has the function of particularly important；Common composition device of the turning motor as nuclear power station electricity generation system, operating status shadow Ring the normal power generation process of nuclear power station；In the power generation process of nuclear power station, turning motor needs regular starting or stops Turn, thus guarantee that nuclear power station can export stable nuclear power energy outward, since the turning motor internal structure in nuclear power station is complicated, The features such as manufacturing process requires high and startup power big, frequent start-up operation will will lead to nuclear power station turning motor and generate one Fixed damage, to reduce its service life, it is therefore desirable to the starting safety of turning motor is safeguarded using starting protection device.

However in traditional nuclear power station turning motor starting, still nuclear power can be directly transferred in turning motor, to drive Kinetonucleus power station turning motor is in normal operating conditions, since input current will appear nuclear power station turning motor during startup Mutation, traditional electric motor starting mode and its protection system can not escape the starting current of turning motor, lead to turning motor Service life can reduce, and be easy to appear short-circuit risks, and then jeopardize the operational safety of nuclear power station；Therefore traditional technology lacks effective Guard method to nuclear power station turning motor carry out starting protection, be easily damaged the operational safety of turning motor.

Summary of the invention

The present invention provides a kind of starting protection circuit and million kilowatt for million kilowatt nuclear power station turning motor The starting protection system of nuclear power station turning motor, it is intended to solve the starting that traditional technology lacks for nuclear power station turning motor and protect The problem of protecting, and then turning motor caused to be easy to appear operation troubles.

First aspect present invention provides a kind of starting protection circuit for million kilowatt nuclear power station turning motor, packet It includes：Current supply circuit, protection location and control unit, wherein the current supply circuit and the protection location are electrically connected, it is described Protection location and the turning motor are electrically connected, and the protection location is of coupled connections with described control unit, described to power back Road is used for transmission nuclear power energy；

Described control unit includes：For generate driving signal drive module, for generating the first DC voltage One DC power supply and execution module, wherein the first termination first DC power supply of the execution module, the execution mould The second termination drive module of block；Wherein, the execution module includes：The coil of first contactor, second contactor The main normally-closed contact of coil, the coil of third contactor and third contactor；Wherein, the coil of the first contactor and institute The coil for stating second contactor is connected to the main normally-closed contact of the third contactor altogether；

The protection location includes reduced-voltage starting branch and total pressure operation branch, and the reduced-voltage starting branch is connected to described Between current supply circuit and the turning motor, the total pressure operation branch and the reduced-voltage starting branch circuit parallel connection；Wherein, the drop Pressure boot leg includes being connected in series：The master of the main normally opened contact of second contactor, resistance box and first contactor is normally opened Contact；The total pressure operation branch includes the main normally opened contact of third contactor.

Second aspect of the present invention provides a kind of starting protection system of million kilowatt nuclear power station turning motor, the starting Protection system includes starting protection circuit as described above.

The present invention is relative to advantageous effects acquired by traditional technology：It is protected in the starting of above-mentioned nuclear power station turning motor In protection circuit, current supply circuit connects turning motor by protection location, and protection location is of coupled connections with control unit, control unit packet The coil of multiple contactors is included, and protects reduced-voltage starting branch and total pressure to run branch in protection location, and protect decompression Include the contact of multiple contactors in boot leg and total pressure operation branch, electric or power loss is obtained by the coil of multiple contactors Come control multiple contactors contact conducting or shutdown, and then realize protection reduced-voltage starting branch and total pressure operation branch Conducting or shutdown；If turning motor is on startup, the conducting of brownout operation branch is controlled by control unit, due to reduced-voltage starting Resistance box is serially connected in branch, current supply circuit is transferred through the nuclear power energy after decompression, Jin Ershi to turning motor by resistance box The reduced-voltage starting process of existing turning motor；After nuclear power station turning motor starts, brownout operation is controlled by control unit at this time Branch turns off and makes total pressure operation branch conducting, and current supply circuit, which runs branch by total pressure, can be directly transferred to nuclear power station for nuclear power Turning motor, and then drive turning motor that can operate normally；Therefore, nuclear power station jiggering electricity is realized by reduced-voltage starting branch Machine can reduced-voltage starting, avoid the short-circuit risks of motor during startup, maintain the safety of nuclear power station turning motor；And And stable nuclear power energy can be transmitted to nuclear power station turning motor by total pressure operation branch, and then drive nuclear power station motor can be just Often, the electric energy loss of nuclear power station turning motor in the process of running is reduced；To which the starting protection circuit can be protected simultaneously The reduced-voltage starting and normal operation for demonstrate,proving nuclear power station turning motor, greatly protect the safety of nuclear power station turning motor；Effectively It solves the starting protection lacked in traditional technology for nuclear power station turning motor, and then is easy to damage turning motor Problem.

Detailed description of the invention

Fig. 1 is a kind of starting protection circuit for million kilowatt nuclear power station turning motor provided in an embodiment of the present invention Function structure chart；

Fig. 2 is a kind of function structure chart of control unit provided in an embodiment of the present invention；

Fig. 3 is a kind of circuit structure diagram of execution module provided in an embodiment of the present invention；

Fig. 4 is a kind of circuit structure diagram of protection location provided in an embodiment of the present invention；

Fig. 5 is a kind of circuit structure diagram of control unit provided in an embodiment of the present invention；

Fig. 6 is the circuit structure diagram of another protection location provided in an embodiment of the present invention；

Fig. 7 is the circuit structure diagram of another control unit provided in an embodiment of the present invention；

Fig. 8 is the circuit structure diagram of another control unit provided in an embodiment of the present invention；

Fig. 9 is the circuit structure diagram of another control unit provided in an embodiment of the present invention；

Figure 10 is the circuit structure diagram of another control unit provided in an embodiment of the present invention；

Figure 11 is the circuit structure diagram of another protection location provided in an embodiment of the present invention；

Figure 12 is the circuit structure diagram of another execution module provided in an embodiment of the present invention；

Figure 13 is a kind of function structure chart of drive module provided in an embodiment of the present invention；

Figure 14 is a kind of circuit structure diagram of drive module provided in an embodiment of the present invention；

Figure 15 is a kind of circuit structure diagram of control unit provided in an embodiment of the present invention；

Figure 16 is a kind of circuit structure diagram of protection location provided in an embodiment of the present invention；

Figure 17 is a kind of starting protection system of million kilowatt nuclear power station turning motor provided in an embodiment of the present invention Function structure chart.

Specific embodiment

Need to illustrate first, the present invention in starting protection electric current for realizing turning motor starting protection, wherein Turning motor is internal to have as complicated circuit, and the jiggering as one of nuclear power station common electronics component Motor will will appear current spike within the of short duration time during startup, and this current spike will greatly damage jiggering The operational safety of motor；Based on this, the present invention provides a kind of starting protection circuits to start turning motor to realize Protection.

It should be pointed out that turning motor mentioned by the present invention belongs to one kind relatively conventional in nuclear power station technical field Equipment, those skilled in the art can understand the specific of turning motor in the present invention by consulting the technical data in traditional technology Internal structure and its starting control principle；In this regard, will not be described in great detail herein.

Fig. 1 shows the starting protection circuit provided in an embodiment of the present invention for million kilowatt nuclear power station turning motor 10 implementation process, for ease of description, only parts related to embodiments of the present invention are shown, and details are as follows：

As shown in Figure 1, the starting protection circuit 10 includes：Current supply circuit L, protection location 101 and control unit 102, Wherein current supply circuit L and protection location 101 are electrically connected, and protection location 101 and turning motor 202 are electrically connected, protection location 101 are of coupled connections with control unit 102, and current supply circuit L is used for transmission nuclear power energy；Wherein current supply circuit L in nuclear power station by matching Nuclear power energy is accessed in electroplax, the power of nuclear power energy is very big, since current supply circuit L connects the jiggering electricity by protection location 101 Machine 20, and then can drive turning motor 20 that can work normally by the nuclear power.

Fig. 2 shows the function structure charts of control unit 102 provided in an embodiment of the present invention, as shown in Fig. 2, control unit 102 include the first DC power supply V1, drive module 1021 and execution module 1022, and wherein the first of execution module 1022 terminates First DC power supply V1, the second termination drive module 1021 of execution module 1022；Specifically, the first end of execution module 1022 The cathode of the first DC power supply V1 is connect, the second end of execution module 1022 connects the first DC power supply V1's by drive module 1021 Anode, and execution module 1022 is also of coupled connections with protection location 101.

Wherein, the first DC power supply V1, can be to control by first DC voltage for generating the first DC voltage Each electric power component in unit 102 provides stable electric energy, to drive its work；Drive module 1021 is for generating driving Signal, and the driving signal is transmitted to execution module 1022；Specifically, due to drive module 1021 and the first DC power supply V1 Connection, drive module 1021 generates driving signal according to the first DC power supply V1, and then execution module 1022 is according to driving signal Realize corresponding function；Since control unit 102 is powered using the first DC power supply V1 independent current source, and then it ensure that protection is single Member 101 and control unit 102 can work independently between the two, improve the operation stability of control unit 102.

As an alternative embodiment, Fig. 3 shows the circuit of execution module 1022 provided in an embodiment of the present invention Structure, as shown in figure 3, execution module 1022 includes：The coil JA1-1 of first contactor, second contactor coil JA2-1, The coil JA3-1 of the third contactor and main normally-closed contact JA3-2 of third contactor；Specifically, the coil of first contactor One end of the coil JA2-1 of one end and second contactor of JA1-1 is connected to the one of the main normally-closed contact JA3-2 of third contactor altogether End, another termination drive module 1021 of the main normally-closed contact JA3-2 of third contactor, the coil JA3-1's of third contactor One termination drive module 1021, the other end of the coil JA1-1 of first contactor, the coil JA2-1 of second contactor it is another The other end of the coil JA3-1 of end and third contactor is connected to the cathode of the first DC power supply V1 altogether.

In the circuit structure of execution module 1022 out shown in Fig. 3, due to the coil JA1-1 of first contactor and second The coil JA2-1 of contactor is in parallel, ensures that the coil JA1-1 of first contactor and the coil JA2-1 of second contactor Can simultaneously electric or power loss；And the coil JA1-1 of first contactor and the coil JA2-1 of second contactor are connected to altogether The normally-closed contact of the main normally-closed contact JA3-2 of three contactors, if the coil JA3-1 of third contactor obtains electric, third contactor Main normally-closed contact JA3-2 disconnect, the coil JA1-1 of first contactor and the coil JA2-1 of second contactor lose simultaneously at this time Electricity；Conversely, if the coil JA3-1 power loss of third contactor, the main normally-closed contact JA3-2 of third contactor is closed, at this time the The coil JA1-1 of the one contactor and coil JA2-1 of second contactor simultaneously it is electric；To guarantee in arbitrary synchronization It is interior, the coil JA1-1 of first contactor, the coil JA2-1 of second contactor and the coil JA3-1 of third contactor this three Can not simultaneously electric or power loss simultaneously；If turning motor 20 is in the reduced-voltage starting stage, drive module 1021 believes driving Number it is transmitted to execution module 1022, the main normally-closed contact JA3-2 of the coil JA3-1 power loss of third contactor, third contactor is closed It closes, the coil JA1-1 of first contactor and the coil JA2-1 of second contactor are closed at, and execution module 1022 controls at this time Protection location 101 carries out reduced-voltage starting protection to turning motor 20；After if turning motor 20 starts successfully, third contactor Coil JA3-1 obtains electric, the main normally-closed contact JA3-2 disconnection of third contactor, the contact of the coil JA1-1 of first contactor and second The coil JA2-1 while power loss of device, 1022 control and protection unit 102 of execution module transmits stable core to turning motor 20 at this time Electric energy, and then turning motor 20 is driven to be at stable working condition.

Therefore, the circuit structure of the execution module 1022 gone out according to Fig.3, can guarantee by the execution module 1022 Turning motor 20 is at reduced-voltage starting and total pressure run both operating statuses one of, so as to orderly control The first reduced-voltage starting of turning motor 20 processed, then total pressure is run, and comprehensively protects the operational safety of turning motor 20.

As an alternative embodiment, Fig. 4 shows the circuit knot of protection location 101 provided in an embodiment of the present invention Structure, as shown in figure 4, protection location 101 includes that reduced-voltage starting branch 1011 and total pressure run branch 1012, reduced-voltage starting branch 1011 are connected between current supply circuit L and turning motor 20, and it is in parallel with reduced-voltage starting branch 1011 that total pressure runs branch 1012；Its In, reduced-voltage starting branch 1011 includes being connected in series：The main normally opened contact JA2-2 of second contactor, resistance box 1013 and The main normally opened contact JA1-2 of first contactor, by the i.e. changeable reduced-voltage starting branch 1011 of the resistance value of resistance box 1013 Running current size, to reduce the input current of turning motor 20 during startup.

Total pressure runs the main normally opened contact JA3-3 that branch 1012 includes third contactor, specifically, the master of third contactor The second termination jiggering electricity of the first termination current supply circuit L, the main normally opened contact JA3-3 of third contactor of normally opened contact JA3-3 Machine 20；Current limiting device due to total pressure operation branch 1012 not comprising resistance box etc, when turning motor 20 is normal In operational process, nuclear power can directly can be transmitted in turning motor 20 by current supply circuit L, and reducing nuclear power can be in transmission process Electric energy loss, improve the operational safety of turning motor 20.

In order to better illustrate the present invention in embodiment starting protection circuit 10 to the starting protection principle of turning motor 20, With reference to the accompanying drawing 3 and attached drawing 4 illustrate the working principle of starting protection circuit 10 by a specific example, specially：

The reduced-voltage starting stage：If turning motor 20 needs to start, driving signal is transmitted to by drive module 1021 at this time is held Row module 1022, the coil JA3-1 power loss of third contactor, the main normally-closed contact JA3-2 closure of third contactor, the first contact The coil JA1-1 of the device and coil JA2-1 of second contactor simultaneously it is electric, according to the movement between the coil and contact of contactor Relationship, then at this time：The main normally opened contact JA2-2 of second contactor is closed, the main normally opened contact JA1-2 closure of first contactor, The main normally opened contact JA2-2 of second contactor is disconnected, and in the reduced-voltage starting stage, reduced-voltage starting branch 1011 is connected, total pressure operation Branch 1012 disconnects, and nuclear power will can be transmitted in turning motor 20 by current supply circuit L by reduced-voltage starting branch 1011, due to drop Pressing boot leg 1011 includes resistance box 1013, and resistance box 1013 can play decompression protective effect, turning motor 20 is avoided to exist In start-up course, excessive peak current damages turning motor 20；Therefore when reduced-voltage starting branch 1011 will be by drop Nuclear power after pressure can be transmitted to turning motor 20, with drive turning motor 20 can reduced-voltage starting, greatly protect jiggering electric The operational safety of machine 20.

The total pressure operation phase：When turning motor 20 after reduced-voltage starting by specific time, optionally, herein specific Time is 3 seconds, 4 seconds or 5 seconds etc., and turning motor 20 has been in stable operation stage, then at this time：The coil of third contactor JA3-1 obtains electric, and the main normally-closed contact JA3-2 of third contactor is disconnected, the coil JA1-1 of first contactor and second contactor Coil JA2-1 while power loss, according to the action relationships between the contact and coil of contactor, the main normally opened contact of second contactor JA2-2 is disconnected, and the main normally opened contact JA1-2 of first contactor is disconnected, the main normally opened contact JA3-3 closure of third contactor, this When reduced-voltage starting branch 1011 disconnect, total pressure runs branch 1012 and is connected, and current supply circuit L is by total pressure operation branch 1012 by core Electric energy is directly transferred in turning motor 20, and since resistance box is not present in total pressure operation branch 1012, avoiding nuclear power can be complete Electric energy loss in pressure operation 1012 transmission process of branch, and then branch 1012 is run by total pressure, turning motor 20 can be driven It is at normal working condition.

Through the embodiment of the present invention, since protection location 101 includes that reduced-voltage starting branch 1011 and total pressure run branch 1012, execution module 1022 includes the coil of multiple contactors, and runs branch 1012 in reduced-voltage starting branch 1011 and total pressure It simultaneously include the contact of multiple contactors, if the coil of contactor obtains electric or power loss in execution module 1022, correspondingly, protection The contact closure or conducting of each contactor in unit 101；If turning motor 20 is in the reduced-voltage starting stage, by executing mould Block 1022 controls reduced-voltage starting branch 1011 and is connected, and total pressure runs branch 1012 and disconnects, due to wrapping in reduced-voltage starting branch 1011 Resistance box 1013 is included, which can play the role of being depressured current limliting, and then prevent turning motor 20 in start-up course In due to input current mutation and turning motor 20 is damaged, greatly protect the safety of turning motor 20；If disk Vehicle motor 20 is in the total pressure operation phase, can be made by execution module 1022：Reduced-voltage starting branch 1011 disconnects, total pressure operation branch Road 1012 is connected, and current supply circuit L can run branch 1012 by total pressure and nuclear power can be directly transferred in turning motor 20, to drive Moving plate vehicle motor 20 is at stable rated operation, and reducing nuclear power can be in the loss resulted in transmission process； Therefore the defencive function of reduced-voltage starting and the total pressure operation for turning motor 20, maintenance can be realized by starting protection circuit 10 The normal operation of turning motor 20；To efficiently solve traditional technology starting guarantor can not be carried out to nuclear power station turning motor The problem of protecting, turning motor caused to be easy to appear operation troubles.

It should be noted that as shown in Figure 1 and Figure 4, in embodiments of the present invention, current supply circuit L includes being matched by nuclear power station Three firewires that electroplax is drawn：First firewire L1, the second firewire L2 and third firewire L3；When nuclear power unit generate nuclear power energy, Export nuclear power energy outward by nuclear power station distribution board；Current supply circuit L accesses nuclear power energy by nuclear power station distribution board, passes through institute respectively Turning motor 20 can be transmitted to for stable nuclear power by stating three firewires；It is understood that since turning motor 20 needs to access Three-phase electricity is to drive turning motor 20 to operate, then current supply circuit L includes three transmission lines to transmit three-phase electricity；Such as Fig. 1 and Fig. 4 Shown, reduced-voltage starting branch 1011 and total pressure operation branch 1012 all include three transmission lines, and each transmission lines It is correspondingly connected with each firewire in current supply circuit L, so that three-phase electricity is transmitted in turning motor 20 by current supply circuit L, with Driving turning motor 20 can run well.

It will be appreciated by persons skilled in the art that since current supply circuit L includes three transmission lines to transmit three-phase electricity, So in current supply circuit L in each transmission lines, each transmission is controlled by corresponding electronic component respectively and is passed The on-off of defeated route；For the reduced-voltage starting branch 1011 shown in Fig. 4, reduced-voltage starting branch 1011 includes three transmission Route, each transmission lines are connected in current supply circuit L between firewire and turning motor 20, then each transmission lines In include：The main normally opened contact JA2-2 of one second contactor, a resistance R, a first contactor main normally opened contact JA1-2；Cause This, controls in reduced-voltage starting branch 1011 the logical of the contact of contactor in each transmission lines by execution module 1022 It is disconnected, and then control the three-phase electricity that turning motor 20 is accessed.

As one kind, optionally preferred embodiment, Fig. 5 show control unit 102 provided in an embodiment of the present invention Another circuit structure, compared to the structure chart of control unit 102 illustrated in fig. 2, control unit shown in Fig. 5 102 further include：Reduced-voltage starting indicates branch 501, total pressure operation instruction branch 502, stop transport instruction branch 503 and failure operation Indicate branch 504.

Specifically, reduced-voltage starting instruction branch 501 is connect with the first DC power supply V1, when turning motor reduced-voltage starting, Reduced-voltage starting indicates that branch 501 issues second indication information, to issue prompt information to technical staff：Turning motor 20 is in Reduced-voltage starting process；Wherein the first DC power supply V1 is used to provide stable electric energy to reduced-voltage starting instruction branch 501, optional , reduced-voltage starting indicates that termination the first DC power supply V1 anode of branch 501, reduced-voltage starting indicate the other end of branch 501 The first DC power supply V1 cathode is connect, when turning motor 20 is during reduced-voltage starting, indicates that branch 501 can be sent out by reduced-voltage starting Reduced-voltage starting prompt information out；Total pressure operation instruction branch 502 is connect with the first DC power supply V1, passes through the first DC power supply V1 Instruction branch 502 is run to total pressure, stable electric energy is provided, specifically, a termination first of total pressure operation instruction branch 502 is straight The anode of galvanic electricity source V1, the cathode of the first DC power supply of another termination V1 of total pressure operation instruction branch 502, when turning motor 20 In the total pressure operation phase, total pressure operation instruction branch 502 issues the first instruction information, to issue prompt letter to technical staff Breath；Turning motor 20 is in total pressure operational process, therefore runs the instruction capable of emitting turning motor 20 of branch 502 by total pressure Total pressure run prompt information.

Instruction branch 503 of stopping transport is connect with the first DC power supply V1, indicates branch to stopping transport by the first DC power supply V1 503 provide stable electric energy, specifically, the anode of a first DC power supply V1 of termination of instruction branch 503 of stopping transport, instruction of stopping transport The cathode of the first DC power supply of another termination V1 of branch 503；When turning motor 20 occurs out of service, instruction branch of stopping transport 503, which issue third, indicates information, to prompt technical staff：Turning motor 20 is in operation-stopping stage；Technical staff passes through Third instruction information judges that turning motor 20 whether in power loss shutdown status, is located for a long time to avoid turning motor 20 in turn In run-stopping status.

Failure operation instruction branch 504 is connect with the first DC power supply V1, and the first DC power supply V1 is used for failure operation Instruction branch 504 provides stable electric energy, specifically, a first DC power supply V1 of termination of failure operation instruction branch 504 Anode, failure operation indicate the cathode of the first DC power supply of another termination V1 of branch 504；When turning motor 20 breaks down fortune When row, failure operation indicates that branch 504 the capable of emitting 4th indicates information, can be prompted by the 4th instruction information：Turning motor 20 are in failure operation state, when technical staff receives the 4th instruction information, come even if can take appropriate measures Solve the problems, such as the failure operation that turning motor 20 occurs；Therefore the capable of emitting turning motor of branch 504 is indicated by failure operation 20 failure operation prompt information, and then technical staff checks the supply lines of turning motor 20 according to the 4th instruction information in time Road prevents from damaging turning motor 20 due to power supply line's failure etc..

Therefore, because control unit 102 includes four instruction branches, wherein this four instruction branches include：Reduced-voltage starting Indicate that branch 501, total pressure operation instruction branch 502, stopping transport indicates that branch 503 and failure operation indicate branch 504, passes through this Four instruction branches, that is, capable of emitting various instruction information pass through the operation shape of these instruction information you can get it turning motors 20 State, herein the operating status of turning motor 20 include：Reduced-voltage starting, total pressure operation, failure operation and out of service, thus skill Art personnel can be according to this four instruction branches it can be learnt that the actual motion state of turning motor 20, and take appropriate measures, Comprehensively to protect the safety of turning motor 20.

As an alternative embodiment, as shown in figure 5, reduced-voltage starting instruction branch 501 includes being connected in series：The The auxiliary normally opened contact JA2-3 and the first indicator light LA1 for assisting normally opened contact JA1-3, second contactor of one contactor；Tool Body, the auxiliary normally opened contact JA1-3 and the first DC power supply V1 of first contactor anode connect, the first indicator light LA1 and The cathode of first DC power supply V1 connects, in reduced-voltage starting instruction branch 501, if the auxiliary normally opened contact of first contactor When JA1-3 and the auxiliary normally opened contact JA2-3 of second contactor are closed at, reduced-voltage starting indicates that branch 501 is connected, thus the One DC power supply V1 transmits electric energy to the first indicator light LA1, and the first indicator light LA1 issues electric machine step-down starting prompt information, uses It is prompted in being issued to technical staff：Turning motor 20 is in during reduced-voltage starting.

As an alternative embodiment, as shown in figure 5, total pressure operation instruction branch 502 includes being connected in series：The The auxiliary normally opened contact JA3-4 of three contactors and the second indicator light LA2, specifically, the auxiliary normally opened contact of third contactor JA3-4 is connect with the anode of the first DC power supply V1, and the second indicator light LA2 is connect with the cathode of the first DC power supply V1, if disk Vehicle motor 20 is in total pressure operation phase, the auxiliary normally opened contact JA3-4 closure of third contactor, total pressure operation instruction branch 502 conductings, the first DC power supply V1 transmit stable electric energy to the second indicator light LA2, and the second indicator light LA2 issues motor total pressure Prompt information is run, is prompted for being issued to technical staff：Turning motor 20 is in total pressure operational process.

As an alternative embodiment, as shown in figure 5, instruction branch 503 of stopping transport includes being connected in series：First connects The normally-closed contact JA1-4 of tentaculum, the normally-closed contact JA2-4 of second contactor, third contactor auxiliary normally-closed contact JA3-5 with And third indicator light LA3, specifically, the normally-closed contact JA1-4 of first contactor connects the anode of the first DC power supply V1, third refers to Show that lamp LA3 connects the cathode of the first DC power supply V1, if turning motor 20 is in power loss shutdown phase, as shown in connection with fig. 4 go out guarantor The circuit structure of unit 101 is protected, the main normally opened contact JA1-2 of first contactor is disconnected, the main normally opened contact of second contactor JA2-2 is disconnected, and the main normally opened contact JA3-3 of third contactor is disconnected, and reduced-voltage starting branch 1011 and total pressure run branch 1012 All it is not turned on；According to the control logic relationship between the normally opened contact and normally-closed contact of relay in the art, at this time The normally-closed contact JA1-4 of first contactor is closed, normally-closed contact JA2-4 closure, the auxiliary of third contactor of second contactor Normally-closed contact JA3-5 closure indicates that branch 503 is connected to stop transport, and the first DC power supply V1 can be transmitted to third indicator light LA3 Stable electric energy indicates information by capable of emitting stoppage in transit, to issue the user with prompt：Turning motor 20 is in power loss and shuts down rank Section；If any one in reduced-voltage starting branch 1011 and total pressure operation branch 1012 similarly in the circuit structure of protection location 101 The conducting of branch then nuclear power can be transmitted in turning motor 20 by current supply circuit L, and then drives turning motor 20 can Operating, and stops transport indicate that branch 503 necessarily disconnects at this time, then third indicator light LA3 would not issue light source, technology people accordingly Member can learn that turning motor 20 is in the operation phase；Therefore technical staff can be issued by third indicator light LA3 the Three instruction information judge whether turning motor 20 is in power loss shutdown status in turn, and then comprehensively protect turning motor 20 Operational safety.

As an alternative embodiment, as shown in figure 5, failure operation instruction branch 504 includes being connected in series：The The normally-closed contact K1-2 and the 4th indicator light LA4 of one relay；Wherein, the coil K1-1 of the first relay is serially connected in fault detection In branch 505；Specifically, fault detection branch 505 is set in control unit 102, a termination first of fault detection branch 505 The anode of DC power supply V1, the cathode of the first DC power supply of another termination V1 of fault detection branch 505, fault detection branch Whether 505 for detecting turning motor 20 in failure operation state；When turning motor 20 is in normal operating condition, failure Detection branch 505 is connected, and the first DC power supply V1 transmits stable electric energy to the coil K1-1 of the first relay, so first after The coil K1-1 of electric appliance obtains electric, and the normally-closed contact K1-2 of the first relay is disconnected, and failure operation instruction branch 504 does not turn on simultaneously, The 4th indicator light LA4 does not issue light source at this time, this illustrates that turning motor 20 is in the stable operation phase；If turning motor 20, which break down, runs, and illustratively, the failure operation includes but is not limited to：The revolving speed of turning motor 20 is excessive, jiggering is electric The input current or input voltage of machine 20 are excessive, and fault detection branch 505 detects that turning motor 20 breaks down and transports at this time Row state, fault detection branch 505 disconnect, the coil K1-1 power loss of the first relay, the normally-closed contact K1-2 of the first relay Closure, failure operation indicate that branch 504 is connected, and the first DC power supply V1 transmits stable electric energy to the 4th indicator light LA4, the 4th Indicator light LA4 issues the 4th instruction information, issues turning motor 20 to technical staff by the 4th instruction information and is in event Hinder the information alert of operation, and technical staff can be taken appropriate measures in time to solve the failure operation of turning motor 20 and ask Topic；To which the 4th instruction information that technical staff can be issued according to the 4th indicator light LA4 can accurately judge turning motor 20 Whether it is in failure operation state, biggish damage is caused to turning motor 20 to avoid failure operation.

It is understood that (reduced-voltage starting instruction branch 501, total pressure operation refer to four instruction branches out shown in Fig. 5 Show branch 502, stop transport instruction branch 503 and failure operation instruction branch 504) particular circuit configurations in, this four branches All be by indicator light (the first indicator light LA1, the second indicator light LA2, third indicator light LA3 and the 4th indicator light LA4) come Corresponding optical signal is issued, each operating status of turning motor 20 is indicated by optical signal；It is envisioned that in reality In operating process, it is various forms of to issue that other indicating equipments (such as public address equipment, vibrator) can be used in technical staff Signal, to indicate the working condition of turning motor 20, since public address equipment, vibrator and indicator light can be used in issuing instruction Information, this is only to take some subtle adjustment for the particular circuit configurations of four branches in the embodiment of the present invention, Substantially still fall within the range that the present invention is protected.

Four instruction branches and jiggering in order to more preferably illustrate in above-mentioned starting protection circuit 10, in control unit 102 Corresponding relationship between 20 operating status of motor, 3, attached drawing 4 and attached drawing 5 illustrate in control unit 102 with reference to the accompanying drawing Four instruction branches working principle, specially：

In order to simplify the course of work of turning motor 20, the operational process of turning motor 20 is divided into four-stage, respectively For：

1, the reduced-voltage starting stage；If turning motor 20 needs to start, driving signal is transmitted to execution by drive module 1021 In module 1022, the coil JA3-1 power loss of third contactor, the main normally-closed contact JA3-2 of third contactor are closed at this time, and first The coil JA1-1 of contactor and the coil JA2-1 of second contactor simultaneously must be electric, according between the coil and contact of contactor Open and close logical relation, the main normally opened contact JA2-2 of second contactor and the main normally opened contact JA1-2 of first contactor are same When be closed, the main normally opened contact JA3-3 of third contactor is disconnected, and the auxiliary normally opened contact JA1-3 of first contactor and second connects The auxiliary normally opened contact JA2-3 of tentaculum is closed at, then reduced-voltage starting branch 1011 is connected, and total pressure runs branch 1012 and disconnects, Current supply circuit L indicates that nuclear power can be transmitted to turning motor 20 by branch 501 by reduced-voltage starting, for driving 20 energy of turning motor Reduced-voltage starting is enough realized, simultaneously because the normally opened touching of auxiliary of auxiliary the normally opened contact JA1-3 and second contactor of first contactor Point JA2-3 is closed at, and reduced-voltage starting indicates that branch 501 is connected, and reduced-voltage starting indicates the first indicator light LA1 in branch 501 Second indication information is issued, can be issued and be prompted to technical staff by second indication signal：Turning motor 20 is in drop It presses in start-up course；To pass through the i.e. controllable reduced-voltage starting branch 1011 of execution module 1022 in starting protection circuit 10 Conducting protects 20 reduced-voltage starting of turning motor with realizing, and controllable reduced-voltage starting instruction branch 501 issues reduced-voltage starting Information is indicated to show the brownout operation state of turning motor 20, to comprehensively protect the starting safety of turning motor 20.

2, the total pressure operation phase：If turning motor 20, after the reduced-voltage starting specific time, turning motor 20 needs at this time Normal operating phase is returned to, at this time：The coil JA3-1 of third contactor obtains electric closure, the normally closed touching of the master of third contactor Point JA3-2 disconnection, the coil JA1-1 of first contactor and the coil JA2-1 of second contactor while power loss, lead according to this technology Open and close logical relation between contactor coil and contact in domain, the main normally opened contact JA2-2 and first of second contactor The main normally opened contact JA1-2 of contactor is simultaneously switched off, the main normally opened contact JA3-3 closure of third contactor, third contactor Normally opened contact JA3-4 closure is assisted, then total pressure operation branch 1012 is connected, and reduced-voltage starting branch 1011 disconnects, and current supply circuit L is logical Crossing total pressure operation branch 1012 by nuclear power can be directly transferred to turning motor 20, avoid nuclear power can in the loss in transmission process, To drive turning motor 20 to run well, simultaneously because the auxiliary normally opened contact JA3-4 of third contactor is closed, total pressure operation refers to Show that branch 502 is connected, the second indicator light LA2 issues the first instruction information, can issue to technical staff by the first instruction information Prompt：Turning motor 20 is in total pressure operational process at this time；And then total pressure operation branch can be made by execution module 1022 Road 1012 is connected, so that turning motor 20 is at total pressure operational process, and then reducing nuclear power can be in transmission process Loss；'s total pressure operation instruction branch 502 can again be connected, total pressure operation instruction information is issued by the second indicator light LA2：Disk Vehicle motor 20 is in total pressure operational process.

3, it stops transport the stage：If turning motor 20 is in power loss stopping process, nuclear power can not can be transmitted to by current supply circuit L In turning motor 20；Execution module 1022 does not access electric energy at this time, then the coil JA1-1 power loss of first contactor, and second The coil JA2-1 power loss of contactor, the coil JA3-1 of third contactor also power loss；Then according to the coil of contactor and contact it Between control logic relationship, the main normally opened contact JA1-2 of first contactor disconnects, the main normally opened contact JA2-2 of second contactor It disconnects, the main normally opened contact JA3-3 of third contactor is disconnected, the normally-closed contact JA1-4 closure of first contactor, second contactor Normally-closed contact JA2-4 closure, third contactor auxiliary normally-closed contact JA3-5 closure, then in protection location 101 decompression open Dynamic branch 1011 and total pressure operation branch 1012 all simultaneously switch off, and then 20 power loss of turning motor is shut down, and is stopped in control unit 102 Fortune instruction branch 503 is connected, and third indicator light LA3 issues third and indicates information, indicates the capable of emitting jiggering of information by the third Motor 20 is in information alert out of service；To which technical staff can indicate that information obtains by third：Jiggering electricity at this time Machine 20 is in run-stopping status.

4, the failure operation stage：If turning motor 20 is in failure operation state, then fault detection branch 505 detects There is operation troubles to turning motor 20, and then fault detection branch 505 disconnects, the first DC power supply V1 can't pass electric energy It transports in the coil K1-1 of the first relay, then the coil K1-1 of the first relay is in power failure state, according to the line of relay Control logic between circle and contact, the normally-closed contact K1-2 closure of the first relay, failure operation instruction branch 504 are led at this time Logical, electric energy is transmitted to the 4th indicator light LA4 by the first DC power supply V1, and then the 4th indicator light LA4 issues the 4th instruction information, The information alert that turning motor 20 is in failure operation is issued the user with by the 4th instruction information, so that technical staff can The failure operation problem of turning motor 20 is excluded in time according to the information of failure operation, so that it is guaranteed that the normal fortune of turning motor 20 Row.

Through the embodiment of the present invention, since control unit 102 includes four instruction branches：Reduced-voltage starting indicates branch 501, total pressure operation instruction branch 502, stop transport instruction branch 503 and failure operation instruction branch 504, in conjunction with above-mentioned protection list Reduced-voltage starting branch 1011 included by member 101 and total pressure run branch 1012, then can be right by the starting protection circuit 10 The realization function of step-down start and total pressure operation function of turning motor 20, and turning motor 20 can be issued by four instruction branches Operation indicate information, thus technical staff can it can be seen that turning motor 20 actual motion state, avoid turning motor 20 It is damaged due to there are abnormal conditions, comprehensively safeguards the operational safety of turning motor 20.

As an alternative embodiment, Fig. 6 shows the another kind of protection location 101 provided in an embodiment of the present invention Circuit structure, Fig. 7 show another circuit structure of control unit 102 provided in an embodiment of the present invention；Compared to Fig. 4 and figure Starting protection circuit 10 shown by 5, Fig. 6 and starting protection circuit 10 illustrated in fig. 7 further include comprehensive protector of motor XS, First breaker JS1, first fuse FU1, second fuse FU2, the second DC power supply V2；As shown in Figure 6 and Figure 7, wherein Comprehensive protector of motor XS includes controller XS-T and actuator XS-1, a termination reduced-voltage starting branch 1011 of controller XS-T Branch 1012, another termination turning motor 20 of controller XS-T are run with total pressure.

Wherein, the first breaker JS1 includes main contacts JS1-1 and alarm actuating contact JS1-SDE, one end of main contacts JS1-1 Meet current supply circuit L；Another termination reduced-voltage starting branch 1011 and total pressure of main contacts JS1-1 runs branch 1012；Actuator XS- 1 signal output end B, alarm actuating contact JS1-SDE and the coil K1-1 of the first relay are sequentially connected in series, to form failure Detection branch 505；The first power input A1 of actuator XS-1 is meeting the second DC power supply V2 just by first fuse FU1 Pole, the second source input terminal A2 of actuator XS-1 connect the cathode of the second DC power supply V2 by second fuse FU2；Second is straight Galvanic electricity source V2 provides stable electric energy to actuator XS-1 by second DC voltage for the second DC voltage of output, and First fuse FU1 and second fuse FU2 is connected between the second DC power supply V2 and actuator XS-1, first fuse The DC voltage that FU1 and second fuse FU2 can prevent the second DC power supply V2 from exporting is excessive, to avoid to actuator XS-1 It damages.

It should be noted that comprehensive protector of motor XS as a kind of the art common, existing electric motor protecting Device, comprehensive protector of motor XS have been widely used in nuclear power field, while also having a large amount of existing skill The internal structure and working principle of art information comprehensive protector of motor XS, therefore those skilled in the art can be passed by consulting Technical data in system technology obtains the working principle and Inner Constitution of comprehensive protector of motor XS in the present invention, herein will It repeats no more.

Certainly, motor operation fault detection warning circuit common in traditional technology can also be used in those skilled in the art Realize the comprehensive protector of motor XS in the embodiment of the present invention.

In embodiments of the present invention, comprehensive protector of motor XS is capable of the operating status of real-time detection motor, to prevent electricity Machine failure operating status；The present embodiment is specifically combined, due to the controller XS-T and turning motor of comprehensive protector of motor 20 are directly connected to, and the actuator XS-1 of comprehensive protector of motor is serially connected in fault detection branch 505, and controller XS-T is for examining The failure operation state of turning motor 20 is surveyed, and controller XS-T issues corresponding control instruction to actuator XS-1, executed Device XS-1 is disconnected according to the control instruction, and fault detection branch 505 disconnects；Specifically, if turning motor 20 total pressure run or During person's reduced-voltage starting, there is operation troubles in turning motor 20, illustratively, the operation troubles of the turning motor include but It is not limited to：Motor speed is too fast, motor input voltage is excessive；Controller XS-T controls actuator XS-1 and disconnects at this time, in turn The coil K1-1 power loss of first relay；It therefore can be real by the controller XS-T and actuator XS-1 of comprehensive protector of motor When detect turning motor 20 failure operation state.

Since the first breaker JS1 includes two contacts：Main contacts JS1-1 and alarm actuating contact JS1-SDE, main contacts JS1- 1 on-off can control the operation or halted state of turning motor 20, and can detect turning motor 20 by main contacts JS1-1 Operating parameter, the operating parameter includes：The input current of turning motor 20 or the input voltage of turning motor 20；Example As main contacts JS1-1 detect turning motor 20 input current it is excessive when, then illustrate at this time turning motor 20 be in failure fortune Row state, then the alarm actuating contact JS1-SDE of the first breaker is disconnected, then the coil K1-1 power loss of the first relay；Therefore logical The first breaker JS1 is crossed to control and detect the operating status of turning motor 20.

With reference to the accompanying drawing 6 and attached drawing 7, fault detection branch 505 and failure fortune are illustrated by a specific example Turning motor 20 is divided to preferably carry out text discussion for two stages by the working principle of row instruction branch 504：Normally Operation and failure operation；Illustratively, the failure operation be turning motor 20 revolving speed is excessive or turning motor 20 it is defeated Enter voltage it is excessive/electric current is excessive etc., specific as follows：

Normal operating phase：If turning motor 20 is in normal total pressure operation phase or reduced-voltage starting stage, pass through The controller XS-T of comprehensive protector of motor detects the normal operating phase that is in of turning motor 20, and controller XS-T control is held Row device XS-1 closure, and main contacts JS1-1 is closed, and nuclear power can be transmitted to turning motor 20 by current supply circuit L, to drive jiggering Motor 20 can run well；Since fault detection branch 505 includes being sequentially connected in series：Actuator XS-1, the first open circuit The alarm actuating contact JS1-SDE of the device and coil K1-1 of the first relay, actuator XS-1 is connected at this time, the report of the first breaker Alert contact JS1-SDE closure, fault detection branch 505 are closed, and electric energy is transmitted to the first relay by the first DC power supply V1 Coil K1-1, then the coil K1-1 of the first relay is obtained electric, according to the control logic between the coil and contact of relay, at this time The normally-closed contact K1-2 of first relay is disconnected, and failure operation indicates that branch 504 disconnects, and the 4th indicator light LA4 does not shine, thus Technical staff can lead to the 4th indicator light LA4 to judge turning motor 20 whether in normal processes.

The failure operation stage：If operation troubles occurs in turning motor 20, detected by controller XS-T and main contacts JS1-1 Be in failure operation state to turning motor 20, the alarm actuating contact JS1-SDE of the first breaker is disconnected, and controller XS-T to Actuator XS-1 issues control instruction, disconnects actuator XS-1；Fault detection branch 505 disconnect, the first DC power supply V1 without Electric energy is transmitted to the coil K1-1 of the first relay by method, the coil K1-1 power loss of the first relay, the first relay it is normally closed Contact K1-2 is remained closed, and failure operation indicates that branch 504 is connected, and the first DC voltage is transmitted to the by the first DC power supply V1 In four indicator light LA4, and then the 4th indicator light LA4 issues the 4th instruction information, by the 4th indication signal to technical staff Issue prompt：Turning motor 20 is in the failure operation stage at this time, and further, technical staff is according to the 4th instruction information It takes appropriate measures to eliminate corresponding motor operation failure, to ensure the operational safety of turning motor 20 comprehensively.

In embodiments of the present invention, pass through the main contacts of the controller XS-T of comprehensive protector of motor and the first breaker JS1-1 is comprehensive to the failure operation state progress of turning motor 20, accurately detects, when turning motor 20 is in failure operation rank The alarm actuating contact JS1-SDE of section, the first breaker is disconnected, and control instruction is transmitted to actuator XS-1 by controller XS-T, So that actuator XS-1 is disconnected, fault detection branch 505 is disconnected, the coil K1-1 power loss of the first relay, the first relay Normally-closed contact K1-2 closure, the 4th indicator light LA4 issue the 4th instruction information, and technical staff can be obtained by the 4th instruction information Turning motor 20 is in the failure operation stage at this time；Therefore the fault detection branch 505 in the embodiment of the present invention passes through motor Comprehensive protection device XS and the first breaker JS1 realization accurately detects 20 failure operation state of turning motor, if jiggering When operation troubles occurs in motor 20, electricity can be issued to technical staff by the 4th instruction information that the 4th indicator light LA4 is issued Machine failure operation information alert, so that technical staff can comprehensively understand the failure operation state of turning motor 20, to jiggering electricity Machine 20 carries out more comprehensive protection.

As a preferred embodiment, Fig. 8 shows the another kind of control unit 102 provided in an embodiment of the present invention Circuit structure；Compared to the circuit structure of control unit 102 shown by Fig. 7, in fig. 8, starting protection circuit 10 further includes The coil K2-1 of the two relays and normally-closed contact K2-2 of the second relay；First breaker JS1 further includes：Assist normally-closed contact JS1-OF and failure normally-closed contact JS1-SF；Comprehensive protector of motor XS further includes a normally-closed contact XS-2.

Wherein, one end of normally-closed contact JS1-OF, one end of failure normally-closed contact JS1-SF and the comprehensive guarantor of motor are assisted The one end for protecting the normally-closed contact XS-2 of device is connected to the anode of the first DC power supply V1 altogether, and auxiliary normally-closed contact JS1-OF's is another End, the other end of failure normally-closed contact JS1-SF and comprehensive protector of motor the other end of normally-closed contact XS-2 be connected to the altogether One end of the coil K2-1 of two relays, the cathode of the first DC power supply of another termination V1 of the coil K2-1 of the second relay； The normally-closed contact K2-2 of second relay is connected between drive module 1021 and the first DC power supply V1.

The circuit structure diagram of control unit 102 according to Fig. 8, since auxiliary normally-closed contact JS1-OF, failure are normal The normally-closed contact XS-2 of closed contact JS1-SF and comprehensive protector of motor is connected to the coil K2-1 of the second relay altogether, only when The normally-closed contact XS-2 of auxiliary normally-closed contact JS1-OF, failure normally-closed contact JS1-SF and comprehensive protector of motor is disconnected When, the coil K2-1 of the second relay just can power loss；If otherwise auxiliary normally-closed contact JS1-OF, failure normally-closed contact JS1-SF with And any one contact conducting in the normally-closed contact XS-2 of comprehensive protector of motor this three, then the first DC power supply V1 will will First DC voltage is transmitted to the coil K2-1 of the second relay, so the coil K2-1 of the second relay obtain it is electric；Further, Since the normally-closed contact K2-2 of the second relay is connected between drive module 1021 and the first DC power supply V1, by second after The conducting of the normally-closed contact K2-2 of electric appliance or the i.e. controllable drive module 1021 of shutdown and execution module 1022 it is electric or Power loss；Specifically, the normally-closed contact K2-2 of second relay is disconnected when the coil K2-1 of the second relay obtains electric, drive at this time Dynamic model block 1021 and execution module 1022 do not access DC power supply, i.e. all contactor coils in execution module 1022 are all located In power failure state, reduced-voltage starting branch 1011 and total pressure operation branch 1012 are all disconnected, then current supply circuit L can not be by nuclear power energy It is transmitted to turning motor 20, then turning motor 20 is in power loss shutdown status；When the coil K2-1 power loss of the second relay, the The normally-closed contact K2-2 of two relays is closed, and stable electric energy is transmitted to 1021 He of drive module by the first DC power supply V1 at this time Execution module 1022, then driving signal is transmitted in execution module 1022 by drive module 1021, and then execution module 1022 In each contactor coil obtain electric perhaps power loss thus control reduced-voltage starting branch 1011 or total pressure operation branch 1012 Perhaps shutdown turning motor 20 is in reduced-voltage starting stage or total pressure operation phase for conducting；Therefore, by assisting normally-closed contact The normally-closed contact XS-2 of JS1-OF, failure normally-closed contact JS1-SF and comprehensive protector of motor can control turning motor 20 Operation stops.

The coil K2-1 of second relay and 20 failure operation of turning motor in embodiment in order to better illustrate the present invention Between relationship, below with reference to Fig. 6, Fig. 8 and above in connection with 505 working principle of fault detection branch describe, will specifically divide The control logic between 20 failure operation of coil K2-1 and turning motor of the second relay is analysed, specially：

As noted previously, as can be for 20 event of turning motor by comprehensive protector of motor XS and the first breaker JS1 Barrier operating status is accurately detected, if the main contacts JS1-1 of the controller XS-T of comprehensive protector of motor and the first breaker It detects that turning motor 20 breaks down to run, at this time the auxiliary normally-closed contact JS1-OF and failure normally-closed contact of the first breaker JS1-SF is closed at, and control instruction is transmitted to comprehensive protector of motor by the controller XS-T of comprehensive protector of motor Normally-closed contact XS-2, comprehensive protector of motor normally-closed contact XS-2 closure, the coil K2-1 of the second relay obtain it is electric, second after The normally-closed contact K2-2 of electric appliance is disconnected, and the first DC voltage can not be just transmitted to drive module by the first DC power supply V1 at this time 1021 and execution module 1022, the coil whole power loss of each contactor in execution module 1022, reduced-voltage starting branch at this time 1011 and total pressure operation branch 1012 all disconnect, turning motor 20 can not access nuclear power energy, and then turning motor 20 is in power loss The state of shutdown, thus by comprehensive protector of motor XS and the first breaker JS1 for the failure operation shape of turning motor 20 State detection can make each in execution module 1022 connect by the second relay K2 when turning motor 20, which breaks down, to be run The complete power loss of the coil of tentaculum, and then turning motor 20 is completely out of service；When turning motor 20 is in failure operation, starting Protection circuit 10 can automatically make turning motor 20, and rapidly power loss is shut down, and turning motor 20 is prevented to be chronically at failure operation State can comprehensively protect the operational safety of turning motor 20.

Meanwhile if turning motor 20 is in normal operation phase (including total pressure operation or reduced-voltage starting), pass through electricity The controller XS-T of machine comprehensive protection device and the main contacts JS1-1 of the first breaker detect that turning motor 20 is in normal fortune Row order section, the auxiliary normally-closed contact JS1-OF of the first breaker and failure normally-closed contact JS1-SF are simultaneously switched off at this time, and electricity Control instruction is transmitted to the normally-closed contact XS-2 of comprehensive protector of motor by the controller XS-T of machine comprehensive protection device, and motor is comprehensive The normally-closed contact XS-2 of protector is disconnected, and the coil K2-1 power loss of the second relay, the normally-closed contact K2-2 of the second relay is closed It closes, the first DC voltage is transmitted to drive module 1021 by the first DC power supply V1, and then drive module 1021 is by driving signal It is transmitted in execution module 1022, reduced-voltage starting branch 1011 is controlled by the coil of each contactor in execution module 1022 Or the break-make situation of total pressure operation branch 1012, nuclear power can be transmitted in turning motor 20 by current supply circuit L, with drive disk Vehicle motor 20 carries out reduced-voltage starting or total pressure operation.

In embodiments of the present invention, comprehensive by auxiliary normally-closed contact JS1-OF, failure normally-closed contact JS1-SF and motor The normally-closed contact XS-2's while the coil K2-1 of the second relay of control of conjunction protector obtains electric or power loss, improves for disk The fault detection accuracy of vehicle motor 20, if passing through the controller XS-T of comprehensive protector of motor and the main contacts of the first breaker When JS1-1 detects the failure operation of turning motor 20, starting protection circuit 10 can automatically be such that 20 power loss of turning motor stops Machine avoids failure operation and damages to turning motor 20；Therefore, the starting protection circuit 10 in the embodiment of the present invention It prevents turning motor 20 to be in failure operation, and can ensure normal reduced-voltage starting and the operation of normal total pressure of turning motor 20, pole The earth maintains the operational safety of turning motor 20.

Embodiment as one preferred, Fig. 9 show the another kind electricity of control unit 102 provided in an embodiment of the present invention Line structure；Compared to the circuit structure of control unit 102 illustrated in fig. 5, control unit 102 shown in Fig. 9 further includes Second breaker JS2 and third breaker JS3, wherein a termination total pressure operation instruction branch 502 of the second breaker JS2, drop Pressure starting instruction branch 501, instruction branch 503 of stopping transport, failure operation instruction branch 504 and drive module 1021, second is disconnected The anode of the first DC power supply of another termination V1 of road device JS2；A termination total pressure operation instruction branch of third breaker JS3 502, reduced-voltage starting instruction branch 501, instruction branch 503 of stopping transport, failure operation instruction branch 504 and execution module 1022, The cathode of the first DC power supply of another termination V1 of third breaker JS3.

The circuit structure for having gone out control unit 102 according to Fig. 9 passes through the second breaker JS2 and third breaker JS3 The on-off of major loop in i.e. controllable control unit 102, and then the operating or halted state of turning motor 20 are controlled, if second Breaker JS2 and third breaker JS3 are simultaneously turned on, then the first DC voltage is transmitted to total pressure operation by the first DC power supply V1 Indicate that branch 502, reduced-voltage starting instruction branch 501, stop transport instruction branch 503, failure operation indicate branch 504, drive module 1021 and execution module 1022, by the first DC voltage, each electric power component transmits direct current i.e. into control unit 102 Electric energy；Conversely, if the second breaker JS2 or third breaker JS3 are disconnected, in control unit 102, each electric power component is all In power loss halted state, starting protection circuit 10 is not in working condition at this time, and then passes through the second breaker JS2 and the Three breaker JS3 can control the work of starting protection circuit 10 or halted state, easy to operate.

As an alternative embodiment, Figure 10 shows the another of control unit 102 provided in an embodiment of the present invention Kind circuit structure, compared to the circuit structure of control unit 102 illustrated in fig. 9, control unit 102 shown in Figure 10 is gone back Including third fuse FU3 and the 4th fuse FU3, wherein one end of total pressure operation instruction branch 502, reduced-voltage starting instruction One end of one end of branch 501, the one end for instruction branch 503 of stopping transport and failure operation instruction branch 504 is fused by third Device FU3 meets the second breaker JS2；Total pressure operation instruction branch 502 the other end, reduced-voltage starting instruction branch 501 the other end, It stops transport and indicates that the other end of branch 503 and the other end of failure operation instruction branch 504 connect third by the 4th fuse FU3 Breaker JS3.

In the circuit structure of control unit 102 illustrated in fig. 10, third fuse FU3 and the 4th fuse FU3 energy Enough prevent aforementioned four instruction branch (total pressure operation instruction branch 502, reduced-voltage starting instruction branch 501, instruction branch of stopping transport 503 and failure operation indicate branch 504) there is overcurrent/over-voltage operating condition, and then protect and indicated in each instruction branch The operational safety of lamp；When turning motor 20 in the process of running, pass through instruction branch in the capable of emitting turning motor 20 of indicator light Different operating statuses indicate information, to monitor the operating status of turning motor 20.

As an alternative embodiment, Figure 11 shows the another of protection location 101 provided in an embodiment of the present invention Kind circuit structure, compared to the circuit structure of protection location 101 illustrated in fig. 4, protection location 101 shown in Figure 11 is gone back Including at least one ammeter A and at least one Current Transmit；The electricity of Current Transmit primary side and turning motor 20 The coupling of source branch, Current Transmit is secondary to flank ammeter A, can detect by ammeter A and shows that turning motor 20 is defeated The size of current entered.

It should be noted that the power branch is the main line that turning motor 20 transmits electric energy, in conjunction with shown in Figure 11, when When turning motor 20 is in reduced-voltage starting, the running current in reduced-voltage starting branch 1011 is equal to the power branch of turning motor 20 In running current；When turning motor 20 is in total pressure operation, total pressure runs the running current in branch 1012 and is equal to jiggering Running current in the power branch of motor 20, therefore pass through running current you can get it the turning motor in detection power branch 20 actually enter electric current.

In conjunction with the circuit structure of protection location 101 illustrated in fig. 11, due to the primary side and jiggering of Current Transmit The power branch of motor 20 couples, and Current Transmit is secondary to flank ammeter A, therefore can will be electric by Current Transmit Nuclear power in the branch of source can be transferred in ammeter A, can input electricity that is actually detected and showing turning motor 20 by ammeter A Stream, technical staff can understand the actual motion state of turning motor 20 accordingly, prevent turning motor 20 from overcurrent/over-voltage fortune occur Row state；And in embodiments of the present invention, ammeter A is detected by Current Transmit and is shown the defeated of turning motor 20 Entering electric current, ammeter A is not serially connected in directly in the power branch of turning motor 20, if there is operation troubles in ammeter A, Its operating status for not interfering with turning motor 20, then ammeter A is independently run with turning motor 20, ammeter A Malfunction not will lead to turning motor 20 and operation troubles occur, and then maintain the normal operation shape of turning motor 20 State.

Further, starting protection circuit 10 may include therefore multiple ammeter A and multiple Current Transmits pass through Multiple ammeter A can detect the running current in turning motor 20 more accurately, avoid detection error.

As an alternative embodiment, Figure 12 shows the another of execution module 1022 provided in an embodiment of the present invention Kind particular circuit configurations, compared to the circuit structure of execution module 1022 shown in Fig. 8, the execution module in Figure 12 is also wrapped It includes：First energization delay relay KR1, the second energization delay relay KR2 and third energization delay relay KR3.

Specifically, the first end of coil KR1-1 and prolonging for the first energization delay relay of the first energization delay relay When normally-closed contact KR1-2 first end be connected to drive module 1021 altogether, for accessing driving signal；Third energization delay relay The first end of coil KR3-1 and the first end of the first normally opened contact KR3-2 of third energization delay relay be connected to first altogether The second end of the delay normally-closed contact KR1-2 of energization delay relay, the first normally opened contact of third energization delay relay The first end of the coil KR2-1 of second the second energization delay relay of termination of KR3-2, the coil of the first energization delay relay The second end of KR1-1, the second energization delay relay coil KR2-1 second end and third energization delay relay line The second end of circle KR3-1 is connected to the first DC power supply V1 altogether；Further, the coil KR1-1 of the first energization delay relay Second end, the second energization delay relay coil KR2-1 second end and third energization delay relay coil KR3-1 Second end the first DC power supply V1 is connected to by the second breaker JS2 altogether, for accessing the first DC voltage.

Wherein, the coil JA1-1 of the first contactor and coil JA2-1 of second contactor passes through the normally closed of third contactor Contact JA3-2 connects the first end of the delay normally-closed contact KR3-3 of third energization delay relay, the second energization delay relay The coil JA3-1 of the first termination third contactor of delay normally opened contact KR2-2, the delay of the second energization delay relay are normally opened Second end, the second end of the delay normally-closed contact KR3-3 of third energization delay relay and the second energization of contact KR2-2 is prolonged When relay the first end of the first normally opened contact KR2-3 be connected to the second normally opened contact KR2- of the second energization delay relay altogether 4 first end, the second end of the first normally opened contact KR2-3 of the second energization delay relay and the second energization delay relay The second end of second normally opened contact KR2-4 is connected to drive module 1021 altogether, for accessing driving signal.

According to the basic electronics common sense of the art, energization delay relay is had the characteristics that：When on-delay after When the coil of electric appliance obtains electric, the contact of energization delay relay needs the time by setting just can the effect that switches of generating state Fruit, so that its contact can be realized the effect of deferred action；By taking the second energization delay relay KR2 as an example, shown by Figure 12 1022 circuit structure of execution module in, when the coil KR2-1 of the second energization delay relay obtains electric, the second on-delay after First normally opened contact KR2-3 of electric appliance and the second normally opened contact KR2-4 of the second energization delay relay, but the second energization is prolonged When relay delay normally opened contact KR2-2 can just be closed by setting time, the setting time is exemplary by being set in advance , setting time is 2 seconds, therefore can control route reality by the delay normally opened contact KR2-2 of the second energization delay relay The effect of existing Delayed conducting.

In conjunction in above-described embodiment for the control logic and principle between protection location 101 and execution module 1022 Description, the course of work of execution module 1022 in Figure 12 is illustrated below by a specific example, specially：

When driving signal is transmitted to execution module 1022 by drive module 1021, by the driving signal can when each hold Relay coil in row module 1022 obtains electric；In the initial stage, the coil KR1-1 of the first energization delay relay accesses the drive Dynamic signal, the coil KR1-1 of the first energization delay relay obtain it is electric, due to the delay normally-closed contact of the first energization delay relay KR1-2 needs just to will disconnect by the first setting time t1, therefore the coil KR3-1 of third energization delay relay, third are logical First normally opened contact KR3-2 of electric time-delay relay is closed, and the coil KR2-1 of the second energization delay relay obtains electric, and second is logical First normally opened contact KR2-3 of electric time-delay relay and the second normally opened contact KR2-4 of the second energization delay relay are closed simultaneously It closes, but the delay normally opened contact KR2-2 of the second energization delay relay needs just be closed by the second setting time t2, the The delay normally-closed contact KR3-3 of three energization delay relays needs just to will disconnect by third setting time t3, then at this time The coil JA1-1 of one contactor and the coil JA2-1 of second contactor access electricity by the normally-closed contact JA3-2 of third contactor Can, i.e. the coil JA1-1 of first contactor and the coil JA2-1 of second contactor obtain electric, the coil of third contactor simultaneously JA3-1 power loss, according among the above for the relationship between contact in 1022 coil of execution module and protection location 101 it is found that When the coil JA1-1 of first contactor and the coil JA2-1 of second contactor obtain electric, third contactor coil JA3-1 simultaneously When power loss, reduced-voltage starting branch 1011 is connected at this time, and total pressure runs branch 1012 and disconnects, and turning motor 20 is in reduced-voltage starting rank Section, and reduced-voltage starting instruction branch 501 is connected, and the first indicator light LA1 issues second indication information, with prompt：Turning motor 20 are in the reduced-voltage starting stage, to realize the function of the reduced-voltage starting information alert of turning motor 20.

It is run in order to realize that turning motor 20 can be automatically switched to total pressure from reduced-voltage starting, then the first on-delay The delay normally opened contact of delay the first setting time t1 of normally-closed contact KR1-2 of relay, the second energization delay relay The third setting time of the delay normally-closed contact KR3-3 of the second setting time t2 and third energization delay relay of KR2-2 T3 need to meet following relationship：t3>t1>T2, as above-mentioned each relay (the first energization delay relay KR1, the second on-delay Relay KR2 and third energization delay relay KR3) on-delay time when meeting above-mentioned relation, then reduced-voltage starting branch Road 1011 just can first be connected, and then total pressure operation branch 1012 is connected again, so that turning motor 20 is realized from reduced-voltage starting to complete Press the automatically switching operation of operation；In order to better illustrate the working principle of execution module 1022 in the embodiment of the present invention, Optionally, t3=22.5 seconds, t1=16.5 seconds, t2=2 seconds.

If turning motor 20 is after reduced-voltage starting, when wherein the reduced-voltage starting time of turning motor 20 is the second setting Between t2, due to have passed through the second setting time t2, the delay normally opened contact KR2-2 closure of the second energization delay relay, third The coil JA3-1 of contactor obtains electric, and the normally-closed contact JA3-2 of third contactor is disconnected, the coil JA1-1 of first contactor and the The coil JA2-1 while power loss of two contactors, the coil JA3-1 of third contactor obtains electric；Referring in above-mentioned execution module 1022 Control principle in each coil and protection location 101 between each contact, the at this time main normally opened contact JA2-2 of second contactor It is simultaneously switched off with the main normally opened contact JA1-2 of first contactor, the main normally opened contact JA3-3 closure of third contactor is then depressured Boot leg 1011 disconnects, and total pressure runs branch 1012 and is connected, and turning motor 20 runs branch 1012 by total pressure and is directly accessed Nuclear power energy, turning motor 20 are in total pressure operational process；Further, the auxiliary normally opened contact JA3-4 closure of third contactor, The auxiliary normally opened contact JA1-3 of first contactor and the auxiliary normally opened contact JA2-3 of second contactor are simultaneously switched off, total pressure operation Branch 1012 is connected, and the second indicator light LA2 issues the first instruction information, to issue prompt information to operator：Turning motor 20 are in total pressure operational process, so that turning motor 20 is realized from reduced-voltage starting process to the automatic of total pressure operational process Conversion, greatly protects the operational safety of turning motor 20.

As a preferred embodiment, as shown in figure 12, execution module 1022 further includes detector QH, wherein detecting Normally-closed contact JA3-2, another termination the first DC power supply V1 of detector QH of a termination third contactor of instrument QH, by the One DC power supply V1 transmits stable electric energy to detector QH, and to drive detector QH to work normally, detector QH is able to detect The operating parameter of execution module 1022, wherein the operating parameter of the execution module 1022 includes but is not limited to working voltage, fortune Row electric current；Optionally, detector QH is ammeter or voltmeter.

Specifically, detector QH connects third contactor by the delay normally-closed contact KR3-3 of third energization delay relay Normally-closed contact JA3-2；Illustratively, detector QH is voltmeter, due to the normally opened touching of the delay of the second energization delay relay Point KR2-2, third energization delay relay delay normally-closed contact KR3-3, the second energization delay relay the first normally opened touching Second normally opened contact KR2-4 of point KR2-3 and the second energization delay relay is connected to one end of detector QH, detector QH altogether The other end, the coil JA1-1 of first contactor, the coil JA2-1 of second contactor and third contactor coil JA3-1 It is connected to the first DC power supply altogether, then can be detected to obtain three contactor coils in execution module 1022 by detector QH (the coil JA3-1 of the coil JA1-1 of first contactor, the coil JA2-1 of second contactor and third contactor) is working When working voltage, prevent above three contactor coil from breaking down, and then each branch in protection location 101 is caused to occur On-off failure damages the operational safety of turning motor 20；Therefore it be can be detected out by detector QH electric in execution module 1022 The operating parameter of power component is judged whether each electric power component breaks down operating status by the operating parameter, is prevented Only there is operation troubles in starting protection circuit 10, to protect the reduced-voltage starting safety and total pressure of turning motor 20 more fully hereinafter Operational safety.

Through the embodiment of the present invention, due to including that (first is powered multiple energization delay relays in execution module 1022 Time-delay relay KR1, the second energization delay relay KR2 and third energization delay relay KR3), use the power on delay after The working characteristics of electric appliance, and then in the protection location 101 of control turning motor 20：Reduced-voltage starting branch 1011 is first connected, and passes through After certain start-up study time, total pressure operation branch 1012 is just connected, and then realizes turning motor 20 from reduced-voltage starting rank Section arrives the automatic conversion of total pressure operation phase, so that reduced-voltage starting branch 1011 realizes decompression protection to turning motor 20, keeps away Current break is exempted from start-up course to damage caused by turning motor；In total pressure operational process, branch is run by total pressure Nuclear power energy is directly transmitted to turning motor 20 in road 1012, and jiggering can be guaranteed in the energy loss in transmission process by reducing nuclear power Motor 20 being capable of stable operation；Therefore execution module 1022 can be realized automatic, the intelligence for 20 operating status of turning motor Change control, comprehensively protects the operational safety of turning motor 20 and nuclear power station electricity generation system.

As a kind of optional embodiment, Figure 13 shows the module knot of drive module 1021 provided in an embodiment of the present invention Structure, as shown in figure 13, drive module 1021 includes：Switching signal generation unit 1023, selection switch 1024 and driving signal Generation unit 1025, wherein the local control contact of switch 1024 is selected in 1023 selecting of switching signal generation unit, and driving signal is raw The long-range control contact of switch 1024 is selected at 1025 selecting of unit；It should be noted that switch 1024 is selected to control as nuclear power Common electronics component in field, both ends have multiple control contacts, pass through appointing between 1024 both ends of control selections switch Different power transmission lines are connected in meaning contact in turn, and then realize and export different supply currents, therefore switch 1024 is selected to have There is the control function of selection conducting route；For selecting the more detailed control method of switch 1024 and internal structure, due to Selecting switch 1024 is the traditional electric power component of the art, and those skilled in the art can consult related in the conventional technology The technical data for selecting switch 1024, in this regard, will not be described in great detail herein.

Wherein, switching signal generation unit 1023 connects the anode of the first DC power supply V1, driving signal generating unit 1025 The cathode for meeting the first DC power supply V1, when the first DC voltage is transmitted to switching signal generation unit by the first DC power supply V1 When 1023, switching signal generation unit 1023 generates switching signal according to the first DC voltage, and the switching signal is for controlling choosing It selects switch 1024 to be switched on or off, since the local control contact of selection switch 1024 and long-range control contact have multiple touchings Any contact at conducting selection 1024 both ends of switch may be selected by selection switch for head；Further, driving signal generates single Member 1025 is connect with execution module 1022, and when selecting switch 1024 to be connected, driving signal generating unit 1025 is believed according to switch Number driving signal is generated, and driving signal is transmitted to execution module 1022 by driving signal generating unit 1025, passes through the drive Dynamic signal drives each electric power component in execution module 1022 to execute corresponding operation；Since selection switch 1024 has choosing The characteristics of selecting conducting, therefore driving signal generating unit 1025 produces different types of driving signal, and then execution module 1022 according to 101 each branches of driving signal control and protection unit (reduced-voltage starting branch 1011 and total pressure run branch 1012) On or off state, and then realize the defencive function run for 20 reduced-voltage starting of turning motor and total pressure.

As a kind of optional embodiment, Figure 14 shows the circuit knot of drive module 1021 provided in an embodiment of the present invention Structure, as shown in figure 14, switching signal generation unit 1023 includes：First button switch TO1, the second button switch TO2, third are pressed Button switch TO3, the 4th button switch TO4, third relay K3, the 4th relay K4, the 5th relay K5 and the 6th relay Device K6；The local control contact of selection switch 1024 includes：First contact c1, the second contact c2, third contact c3, the 4th contact C4, the 5th contact c5, the 6th contact c6, the 7th contact c7 and the 8th contact c8.

Wherein, the first end of the first button switch TO1, the first end of the second button switch TO2, third relay K3 The first end of one end and the 4th relay K4 are connected to the first DC power supply V1 altogether, and then pass through the first DC power supply V1 to driving Module 1021 provides electric energy, and the second end of the first button switch TO1 and the first end of third button switch TO3 are connected to the 8th touching altogether Second the first contact c1 of termination of head c8, third button switch TO3, the second end of the second button switch TO2 and the 4th button are opened The first end for closing TO4 is connected to the 5th contact c5, second the second contact C2 of termination of the 4th button switch TO4, third relay altogether The first end of the second the 5th relay K5 of termination of K3, the first end of the second the 6th relay K6 of termination of the 5th relay K5, Third contact c3 and the 4th contact c4 is connected to the second end of the 6th relay K6 altogether, and the 6th contact c6 and the 7th contact c8 are total It is connected to the second end of the 4th relay K4.

According to the circuit structure of switching signal generation unit 1023, since the local control contact of selection switch 1024 includes 8 contacts (the first contact c1, the second contact c2, third contact c3, the 4th contact c4, the 5th contact c5, the 6th contact c6, Seven contact c7 and the 8th contact c8), and the multiple buttons switch (first that selected the local control contact of switch 1024 external Button switch TO1, the second button switch TO2, third button switch TO3, the 4th button switch TO4), then selection closure is different Button switch just correspondingly turn on contact different in the local control contact of selection switch 1024, so that switching signal is given birth to It is switched by selection by omicronff signal transmission to driving signal generating unit 1025 at unit 1023；Illustratively, if selection will First button switch TO1 closure, and the second button switch TO2, third button switch TO3 and the 4th button switch TO4 are broken It opens, then selects the 8th contact c8 conducting in the local control contact of switch 1024, and then can be switched and can be led by control button Different contact in the local control contact of logical selection switch 1024, so it is different types of by selecting switch 1024 that can transmit Electric energy.

As an alternative embodiment, as shown in Fig. 14, driving signal generating unit 1025 includes being connected in series 's：7th relay K7, the 8th relay K8, the 9th relay K9, the tenth relay K10, the 11st relay K11 and 12 relay K12；Wherein driving signal generating unit 1025 is connected to the long-range control contact of selection switch 1024 and executes Between module 1022, therefore by the relay of multiple concatenations in driving signal generating unit 1025, when in selection switch 1024 When being connected between local control contact and long-range control contact, the relay of multiple concatenations is in driving signal generating unit 1025 Driving signal can be generated according to switching signal, and the driving signal is transmitted in execution module 1022, in execution module 1022 Electric power component corresponding movement is executed according to the driving signal, such as shutdown is closed, and then execution module 1022 passes through control Each branch conducting or shutdown, transport the reduced-voltage starting protection of turning motor 20 and total pressure with realizing in protection location 101 processed Row protection.

As a preferred embodiment, as shown in figure 14, selecting the long-range control contact of switch 1024 includes series connection Connection：9th contact D1, the tenth contact D2, the 11st contact D3, the 12nd contact D4, the 13rd contact D5, the 14th touching Head D6, the 15th contact D7 and the 16th contact D8；Execution module 1022 and driving signal generating unit 1025 are connected to altogether Nine contact D1.

In Figure 14, in conjunction with the circuit knot of above-mentioned switching signal generation unit 1023 and driving signal generating unit 1025 Structure, since the long-range control contact of selection switch 1024 includes 8 contacts, selecting the local control contact of switch 1024 includes 8 A contact, then touching that can be different with selection conducting in local control contact in the long-range control contact in selection switch 1024 Head, such as selection the first contact c1 of conducting and the long-range control contact for selecting switch 1024, then driving signal generating unit at this time 1025 generate different types of driving signal according to the signal that opens the light, and execution module 1022 controls turning motor according to the driving signal 20 are in different operating statuses, such as reduced-voltage starting, total pressure are run, to realize for turning motor 20 in various operating statuses Under defencive function and control function.

As a preferred embodiment, the circuit structure of execution module 1022 in conjunction with shown in attached drawing 12 and attached The circuit structure of drive module 1021 in Figure 14, as a preferred embodiment, as shown in Fig. 14, third on-delay Second normally opened contact KR3-4 of relay is connected between the 12nd contact D4 and the 13rd contact D5, according to above-mentioned execution mould The circuit operation principle of block 1022, third energization delay relay KR3 affect the starting or fortune of control turning motor 20 indirectly Row state, when driving signal is transmitted to execution module 1022 by drive module 1021, execution module 1022 passes through protection location Each branch in 101 passes through third on-delay relay in the process to control the starting or operation of turning motor 20 Second normally opened contact KR3-4 of device is the different contacts in the long-range control contact for may be selected conducting selection switch 1024, to adjust Whole driving signal generating unit 1025 driving signal generated；Join to exist in execution module 1022 and drive module 1021 Dynamic feedback control, when execution module 1022 carries out reduced-voltage starting protection or total pressure to turning motor 20 by protection location 101 When running protection, the operation shape of the linkage feedback control adjustment turning motor 20 between execution module 1022 and drive module 1021 State improves the stability of the operation of turning motor 20.

In embodiments of the present invention, due to include in drive module 1021 multiple buttons switch, multiple relays and The electronic components such as switch 1024 are selected, contact different in conducting selection switch 1024 can be selected with shape by button switch At different current loops, when selecting switch 1024 to be connected, driving signal generating unit 1025 can be raw according to switching signal At different types of driving signal；When driving signal is transmitted to execution module 1022 by driving signal generating unit 1025, execute Module 1022 can each branch in control and protection unit 101 (reduced-voltage starting branch 1011 and total pressure run branch 1012) On-off, to realize the function of reduced-voltage starting protection and total pressure running protection to turning motor 20；And the drive module 1021 Circuit composed structure it is simple, easy to operate, scalability is strong, can widely apply nuclear power station electricity generation system control system In.

In order to better illustrate the present invention in embodiment starting protection circuit 10 complete circuit, Figure 15 shows this The complete circuit figure of control unit 102 shown by inventive embodiments, Figure 16 are shown shown by the embodiment of the present invention The complete circuit figure of protection location 101, in conjunction with the control unit 102 in attached drawing 15 and protection location 101 in attached drawing 16 The complete circuit of starting protection circuit 10 in the embodiment of the present invention can be obtained in circuit structure, those skilled in the art；It needs It is noted that due to the electronics connection relationship and work of the control unit 102 in attached drawing 15 and protection location 101 in attached drawing 16 Principle has hereinbefore had detailed discussion, will not be described in great detail herein to this.

Figure 17 shows the starting protection systems of the million kilowatt nuclear power station turning motor shown by the embodiment of the present invention 170 module diagram, wherein the starting protection system 170 includes above-mentioned starting protection circuit 10, due to starting protection circuit 10 connect with turning motor 20, and reduced-voltage starting protection and total pressure can be realized to turning motor 20 by the starting protection circuit 10 Running protection, and then the safety of turning motor 20 is comprehensively protected, extend the service life of turning motor 20.

It through the embodiment of the present invention, include reduced-voltage starting branch in protection location 101 in above-mentioned starting protection circuit 10 1011 and total pressure run branch 1012, include the coil of multiple relays in execution module 1022, by execution module 1022 Relay coil electric or power loss can in control and protection unit 101 relay contact conducting or closure, Jin Erruo When turning motor 20 needs reduced-voltage starting, the conducting of reduced-voltage starting branch 1012, total pressure operation branch are controlled by execution module 1022 Road 1012 is closed, and since drop reduced-voltage starting branch 1011 includes resistance box 1013, which has the work of decompression current limliting With the electric energy after decompression is transmitted in turning motor 20 by reduced-voltage starting branch 1012, to realize the drop of turning motor 20 Pressure starting avoids current/voltage in start-up course and is mutated to damage caused by turning motor 20；When turning motor 20 starts After success, reduced-voltage starting branch 1012 is controlled by execution module 1022 and is disconnected, total pressure runs branch 1012 and is connected, current supply circuit L can run branch 1012 by total pressure and directly nuclear power can be transmitted in turning motor 20, and avoiding nuclear power can be in transmission process In energy loss, and then drive turning motor 20 can total pressure operation, therefore the starting protection circuit realizes pair simultaneously In the reduced-voltage starting protection of turning motor 20 and total pressure running protection；And then a step, due in control unit 102, due to control Unit 102 processed further comprises four instruction branch total pressure operation instruction branches 502, reduced-voltage starting instruction branches 501, instruction of stopping transport Branch 503 and failure operation indicate branch 504, can issue turning motor 20 to technical staff by this four instruction branches The prompt information of actual motion state, and then technical staff monitors the operating status of turning motor 20, prevents turning motor 20 long Phase is in failure operation state, comprehensively protects the operational safety of turning motor 20 and nuclear power station electricity generation system；It efficiently solves Traditional technology can not carry out starting protection to nuclear power station turning motor, and then be easy damage turning motor and nuclear power station power generation system The problem of operational safety of uniting.

It should be noted that, in this document, such as a variety of and multiple etc quantity referred both to greater than 1；Such as the first He Second etc relational terms are used merely to distinguish an entity with another entity, without necessarily requiring or implying There are any actual relationship or orders between these entities.And the terms "include", "comprise" or any other Variant is intended to non-exclusive inclusion, so that the element that product or structure including a series of elements are intrinsic. In the absence of more restrictions, the element limited by sentence " including ... " or " including ... ", it is not excluded that wrapping Include in process, method, article or the terminal device of the element that there is also other elements.In addition, herein, it is " big In ", " being less than ", " being more than " etc. be interpreted as not including this number；" more than ", " following ", " within " etc. be interpreted as including this number.

Claims

1. a kind of starting protection circuit for million kilowatt nuclear power station turning motor, which is characterized in that including：It powers back Road, protection location and control unit, wherein the current supply circuit and the protection location are electrically connected, the protection location with The turning motor is electrically connected, and the protection location is of coupled connections with described control unit, and the current supply circuit is used for transmission Nuclear power energy；

Described control unit includes：For generating the drive module, first for generating the first DC voltage straight of driving signal Galvanic electricity source and execution module, wherein the first termination first DC power supply of the execution module, the execution module The second termination drive module；Wherein, the execution module includes：The coil of first contactor, second contactor coil, The coil of third contactor and the main normally-closed contact of third contactor；Wherein, the coil of the first contactor and described The coil of two contactors is connected to the main normally-closed contact of the third contactor altogether；

The protection location includes reduced-voltage starting branch and total pressure operation branch, and the reduced-voltage starting branch is connected to the power supply Between circuit and the turning motor, the total pressure operation branch and the reduced-voltage starting branch circuit parallel connection；Wherein, the decompression is opened Dynamic branch includes being connected in series：The main normally opened contact of the main normally opened contact of second contactor, resistance box and first contactor； The total pressure operation branch includes the main normally opened contact of third contactor.

2. starting protection circuit according to claim 1, which is characterized in that described control unit includes：

It is connect with first DC power supply, for issuing the complete of the first instruction information in the total pressure operation of the turning motor Pressure operation instruction branch；

It is connect with first DC power supply, for issuing the decompression of second indication information in the turning motor reduced-voltage starting Starting instruction branch；

It is connect with first DC power supply, for issuing the stoppage in transit of third instruction information when the turning motor is out of service Indicate branch；And

It is connect with first DC power supply, for issuing the failure of the 4th instruction information in the turning motor failure operation Operation instruction branch.

3. starting protection circuit according to claim 2, which is characterized in that the reduced-voltage starting instruction branch includes series connection Connection：The auxiliary normally opened contact and the first indicator light for assisting normally opened contact, second contactor of first contactor；

The total pressure operation instruction branch includes the auxiliary normally opened contact and the second indicator light for the third contactor being connected in series；

The instruction branch of stopping transport includes being connected in series：The normally-closed contact of first contactor, second contactor normally-closed contact, The auxiliary normally-closed contact and third indicator light of third contactor；

The failure operation instruction branch includes the normally-closed contact and the 4th indicator light for the first relay being connected in series；

Wherein, the coil tandem of the first relay is in the failure for whether being in failure operation state for detecting the turning motor In detection branch.

4. starting protection circuit according to claim 3, which is characterized in that the starting protection circuit further includes that motor is comprehensive Close protector, the first breaker, first fuse, second fuse and the second direct current for generating the second DC voltage Source；

Wherein, the comprehensive protector of motor includes controller and actuator, a termination reduced-voltage starting of the controller Branch and the total pressure run branch, another termination turning motor of the controller；

Wherein, first breaker includes main contacts and alarm actuating contact, a termination current supply circuit of the main contacts, institute State another termination reduced-voltage starting branch and total pressure operation branch of main contacts；

The coil of the signal output end of the actuator, the alarm actuating contact and first relay is sequentially connected in series；

First power input of the actuator connects the anode of second DC power supply by the first fuse, described The second source input terminal of actuator connects the cathode of second DC power supply by the second fuse.

5. starting protection circuit according to claim 4, which is characterized in that the starting protection circuit further include second after The normally-closed contact of the coil of electric appliance and the second relay；

First breaker further includes：Assist normally-closed contact and failure normally-closed contact；

The comprehensive protector of motor further includes a normally-closed contact；

Wherein, one end of the auxiliary normally-closed contact, one end of the failure normally-closed contact and the comprehensive protector of motor One end of normally-closed contact be connected to the anode of first DC power supply altogether, the other end of the auxiliary normally-closed contact, it is described therefore The other end for hindering the other end of normally-closed contact and the normally-closed contact of the comprehensive protector of motor is connected to second relay altogether One end of the coil of device, the cathode of another termination of the coil of second relay first DC power supply；

The normally-closed contact of second relay is connected between the drive module and first DC power supply.

6. starting protection circuit according to claim 2, which is characterized in that described control unit further includes the second breaker With third breaker；Wherein, a termination of second breaker total pressure operation instruction branch, reduced-voltage starting instruction Branch, stoppage in transit instruction branch, the failure operation instruction branch and drive module, second breaker it is another The anode of one termination first DC power supply；It is the termination total pressure operation instruction branch of the third breaker, described Reduced-voltage starting indicates that branch, stoppages in transit instruction branch, the failure operation indicate branch and the execution module, described the The cathode of another termination of three breakers first DC power supply.

7. starting protection circuit according to claim 6, which is characterized in that described control unit further includes：Third fusing Device and the 4th fuse；Wherein, one end, one end of reduced-voltage starting instruction branch, institute of the total pressure operation instruction branch One end of one end and failure operation instruction branch for stating instruction branch of stopping transport connects described the by the third fuse Two breakers；The other end of the total pressure operation instruction branch, the other end of reduced-voltage starting instruction branch, the stoppage in transit refer to The other end of the other end and failure operation instruction branch that show branch connects the third by the 4th fuse and breaks Road device.

8. starting protection circuit according to claim 1, which is characterized in that the protection location further includes at least one electricity Flow table and at least one current transformer；The current transformer primary side is coupled with the power branch of the turning motor, institute It states Current Transformer Secondary and flanks ammeter.

9. starting protection circuit according to claim 1, which is characterized in that the execution module further includes：First is powered Time-delay relay, the second energization delay relay and third energization delay relay；Wherein, the first on-delay relay The first end of the delay normally-closed contact of the first end of the coil of device and first energization delay relay is connected to the driving altogether First normally opened touching of module, the first end of the coil of the third energization delay relay and the third energization delay relay The first end of point is connected to the second end of the delay normally-closed contact of first energization delay relay, the third on-delay altogether The first end of the coil of second termination second energization delay relay of the first normally opened contact of relay, described first is logical The second end of the coil of electric time-delay relay, second energization delay relay coil second end and the third it is logical The second end of the coil of electric time-delay relay is connected to first DC power supply altogether；

The main normally-closed contact that the coil of the first contactor and the coil of the second contactor pass through the third contactor The first end of the delay normally-closed contact of the third energization delay relay is connect, the delay of second energization delay relay is normal Open the coil of the first termination third contactor of contact, the of the delay normally opened contact of second energization delay relay Two ends, the third energization delay relay delay normally-closed contact second end and second energization delay relay The first end of first normally opened contact is connected to the first end of the second normally opened contact of second energization delay relay altogether, and described Second normally opened contact of the second end of the first normally opened contact of two energization delay relays and second energization delay relay Second end be connected to the drive module altogether.

10. starting protection circuit according to claim 1, which is characterized in that the execution module further includes：One termination institute State the main normally-closed contact of third contactor, another termination first DC power supply, for detecting the operation of the execution module The detector of parameter.

11. starting protection circuit according to claim 1, which is characterized in that the drive module includes：Switching signal is raw At unit, selection switch and driving signal generating unit；

Wherein the switching signal generation unit connects the local control contact of the selection switch, the driving signal generating unit Connect the long-range control contact of the selection switch；The switching signal generation unit is according to first DC voltage generation Switching signal, the selection switch are connected or turn off according to the switching signal；When the selection switch conduction, the drive Dynamic signal generation unit generates the driving signal according to the switching signal, and the driving signal is transmitted to the execution Module.

12. starting protection circuit according to claim 11, which is characterized in that the switching signal generation unit includes： First button switch, the second button switch, third button switch, the 4th button switch, third relay, the 4th relay, Five relays and the 6th relay；The local control contact of the selection switch includes：First contact, the second contact, third Contact, the 4th contact, the 5th contact, the 6th contact, the 7th contact and the 8th contact；

Wherein, the first end of first button switch, the first end of second button switch, the third relay The first end of one end and the 4th relay is connected to first DC power supply, the second end of first button switch altogether The 8th contact is connected to altogether with the first end of the third button switch, the second termination of the third button switch described the The first end of one contact, the second end of second button switch and the 4th button switch is connected to the 5th contact altogether, Second termination second contact of the 4th button switch, the second termination the 5th relay of the third relay First end, the first end of the second termination the 6th relay of the 5th relay, the third contact and described the Four contacts are connected to the second end of the 6th relay altogether, the 6th contact and the 7th contact be connected to altogether the described 4th after The second end of electric appliance.

13. starting protection circuit according to claim 11, which is characterized in that the driving signal generating unit includes string Connection connection：7th relay, the 8th relay, the 9th relay, the tenth relay, the 11st relay and the 12nd after Electric appliance.

14. starting protection circuit according to claim 13, which is characterized in that the long-range control contact of the selection switch Including series connection：9th contact, the tenth contact, the 11st contact, the 12nd contact, the 13rd contact, the 14th contact, 15th contact and the 16th contact；The execution module and the driving signal generating unit are connected to the 9th touching altogether Head.

15. starting protection circuit according to claim 1, which is characterized in that the current supply circuit includes being matched by nuclear power station Three firewires that electroplax is drawn：First firewire, the second firewire and third firewire.

16. a kind of starting protection system of million kilowatt nuclear power station turning motor, which is characterized in that the starting protection system Including the starting protection circuit as described in any one of claim 1-15.