CN203983970U - Switching protective device - Google Patents
Switching protective device Download PDFInfo
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- CN203983970U CN203983970U CN201420273656.6U CN201420273656U CN203983970U CN 203983970 U CN203983970 U CN 203983970U CN 201420273656 U CN201420273656 U CN 201420273656U CN 203983970 U CN203983970 U CN 203983970U
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- 239000003990 capacitor Substances 0.000 claims description 11
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- 238000004146 energy storage Methods 0.000 claims description 4
- 230000002123 temporal effect Effects 0.000 claims description 4
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- 238000012544 monitoring process Methods 0.000 description 3
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Abstract
The utility model provides a kind of switching protective device, comprising: output and input module, protection control unit, power module; Output is connected respectively with power module with input module, protection control unit; Wherein, protection control unit, for carrying out circuit protection to on-load switch; Output and input module, for the current state of circuit and/or to protection control unit input parameter; Power module, is used to output and input module and protection control unit that power supply is provided.The related incidents that greatly reduces fault-free circuit has a power failure, dwindles fault outage scope, shortens customer outage hours, thereby improves user's power supply reliability.
Description
Technical field
The utility model relates to electric relay protection technology, relates in particular to a kind of switching protective device.
Background technology
Looped network distribution system is a kind of safe and reliable city net distribution system, has been widely used in town and country electric power transmission network, in switching station, unattended operation box-type substation, residential quarters, Balkh and large and medium-sized enterprise.In these distribution, outgoing line unit generally adopts on-load switch or switch-fuse combination to power to power consumption equipment to transformer pressure-reducing again.In order to improve the reliability of safety and power supply, the modes that adopt on-load switch to add fuse combination were received transformer by cable more in recent years, and on transformer, filled overtemperature or protection.There is certain protection gap in this protected mode, in the time there is the fault such as ground connection, fuse disjunction has certain time delay, and fuse spring mechanism easily breaks down, and can cause higher level's breaker open operation and cause on a large scale and have a power failure; If not switch-fuse combination, while breaking down, transformer can be sent out overtemperature or gas trip signal, if the overload breaking capacity of switch of electric current now, strong point will there will be arcing, and when serious, can explode cabinet.For fear of the problems referred to above; a kind of switching protective device is provided in prior art; it converts conventional protective relaying device conventionally; or by programmable logic controller (PLC) (Programmable Logic Controller, be called for short: PLC) and fault detector integration form.Thereby improve the safety and stability of power supply.
But, in prior art, adopt the switching protective device that converts of protective relaying device, expensive and be merely able to use the environment higher with automaticity; And integrate by PLC and fault detector the switching protective device forming, increased the cost of installation and maintenance because volume is larger.Therefore, how can ensure, under the prerequisite of lower cost, to provide a kind of switching protective device of good reliability to become problem demanding prompt solution.
Utility model content
It is a kind of for improving the switching protective device of reliability that the utility model provides.
First aspect of the present utility model is to provide a kind of switching protective device, comprising: output and input module, protection control unit, power module;
Described output is connected respectively with described power module with input module, described protection control unit;
Wherein, described protection control unit, for carrying out circuit protection to on-load switch;
Described output and input module, for showing the current state of described circuit and/or to described protection control unit input parameter;
Described power module, is used to described output and input module and described protection control unit that power supply is provided.
In conjunction with first aspect, in the possible implementation of the first, described protection control unit, comprising: microprocessor, communication interface, input/output port, clock, electric erazable programmable memory and the first bus;
Wherein, described microprocessor, described communication interface, described input/output port, described clock, described electric erazable programmable memory are all connected with described bus;
Described microprocessor, for carrying out circuit protection to described on-load switch; Or, send described warning output information by described communication interface to remote control equipment;
Wherein, described intake comprises: higher level's power-off signal, energy storage signal, and described warning output information comprises: trip signal output and the output of reporting to the police;
Described communication interface is connected with described remote control equipment, for giving described remote control equipment by described intake and described warning output information; And/or, receive the described parameter that described remote control equipment sends, and described parameter is sent to described protection control unit; And/or, according to the instruction of described remote control equipment, described on-load switch is carried out to circuit protection;
Described input/output port, is connected with described power module, external equipment and described on-load switch; For sending described intake and described warning output information to described external equipment; Or, for sending described intake and described warning output information to described on-load switch;
Described clock, for providing temporal information;
Described electric erazable programmable memory, for storing described parameter.
In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second, described power module, comprising: Switching Power Supply, current absorption module, protective circuit and the second bus;
Wherein, described Switching Power Supply, described current absorption module and described protective circuit are connected with described the second bus respectively;
Described Switching Power Supply, in the time having accessory power supply, accesses described accessory power supply and provides power supply for described output and input module and described protection control unit;
Described current absorption module, for when without described accessory power supply, for described output and input module and described protection control unit provide power supply;
Described protective circuit, for the protection of described Switching Power Supply and described current absorption module.
In conjunction with the possible implementation of the second of first aspect, in the third possible implementation, described power module, also comprises: storage capacitor, tripping operation outlet;
Described storage capacitor, is connected with described the second bus, and for when the non-transformer, in order to thread off, operation provides electric energy;
Described tripping operation outlet, is connected with described the second bus, in the time that described protection control unit need to trip according to the current state of described circuit is definite, sends tripping operation instruction to described on-load switch.
In conjunction with above-mentioned any one possible implementation of first aspect or first aspect, in the 4th kind of possible implementation, described output and input module, comprising: liquid crystal display and operation interface;
Described liquid crystal display is connected with described the first bus; Described operation interface is connected with described the first bus;
Wherein, described liquid crystal display, for showing described warning output information;
Described operation interface is made up of button, for receiving described parameter.
In conjunction with above-mentioned any one possible implementation of first aspect or first aspect, in the 5th kind of possible implementation, also comprise: metal shell, binding post;
Described output and input module, described protection control unit and described power module are arranged at inside;
Described metal shell bottom is provided with described binding post, for being connected with current transformer, described on-load switch.
The switching protective device that the utility model embodiment provides, is connected respectively with described power module with input module, described protection control unit by described output; Wherein, described protection control unit, be used for obtaining line information, and obtain the current state of described circuit according to described line information, if the current state of described circuit is fault, send intake and warning output information to described output and input module, and on-load switch is carried out to circuit protection; Described output and input module, for showing the current state of described circuit and/or to described protection control unit input parameter; Described power module, is used to described output and input module and described protection control unit that power supply is provided.The related incidents that greatly reduces fault-free circuit has a power failure, dwindles fault outage scope, shortens customer outage hours, thereby improves user's power supply reliability.
Brief description of the drawings
The structural representation of a kind of switching protective device that Fig. 1 provides for the utility model embodiment;
The structural representation of the another kind of switching protective device that Fig. 2 provides for the utility model embodiment;
The structural representation of the another kind of switching protective device that Fig. 3 provides for the utility model embodiment;
The structural representation of the another kind of switching protective device that Fig. 4 provides for the utility model embodiment;
The external structure schematic diagram of the another kind of switching protective device 10 that Fig. 5-Fig. 7 provides for the utility model embodiment.
Embodiment
The structural representation of a kind of switching protective device that Fig. 1 provides for the utility model embodiment, this switching protective device 10 can be arranged on loading switch cabinet, with reference to Fig. 1, this switching protective device 10 comprises: output and input module 100, protection control unit 101, power module 102;
Output is connected respectively with described power module 102 with input module 100, described protection control unit 101;
Wherein, described protection control unit 101 is connected with outside on-load switch, be used for obtaining line information, and obtain the current state of described circuit according to described line information, if the current state of described circuit is fault, send intake and warning output information to described output and input module, and on-load switch is carried out to circuit protection;
Described output and input module 100, for showing the current state of described circuit and/or to described protection control unit input parameter.
Concrete, output and input module 100 can comprise liquid crystal display and operation interface, and wherein, liquid crystal display is connected with protection control unit 101, and operation interface is connected with protection control unit 101.Wherein, liquid crystal display is as output block, for showing the current state of described circuit; Operation interface, as input block, is inputted relevant parameter for user, so that protection control unit 101 stored parameters are convenient to and the line information the getting current state of definite circuit jointly.And for the form of liquid crystal display and operation interface, its concrete form can be touch screen, can be also display and keyboard, does not limit herein.
Described power module 102, is used to output and input module and protection control unit that power supply is provided.
It should be noted that; for the chip of more existing realization protection control unit functions; when it needs specific currents; be understandable that, power module 102 need to have the function of respective electrical circulationization, for example; output and input module need 24V direct current; protection control unit is while needing 5V direct current, and power module 102 should have external power supply is converted into 24V direct current and the galvanic ability of 5V, and 24V direct current and 5V direct current can be transformed mutually.Only give an example with 24V direct current and 5V direct current herein, also need in different scenes for the form of concrete electric current, carry out relative set according to the device requirement difference adopting.
The switching protective device that the present embodiment provides, is connected respectively with described power module with input module, described protection control unit by described output; Wherein, described protection control unit, be used for obtaining line information, and obtain the current state of described circuit according to described line information, if the current state of described circuit is fault, send intake and warning output information to described output and input module, and on-load switch is carried out to circuit protection; Described output and input module, for showing the current state of described circuit and/or to described protection control unit input parameter; Described power module, is used to described output and input module and described protection control unit that power supply is provided.The related incidents that greatly reduces fault-free circuit has a power failure, dwindles fault outage scope, shortens customer outage hours, thereby improves user's power supply reliability.
The structural representation of the another kind of switching protective device that Fig. 2 provides for the utility model embodiment, this switching protective device 10 is a kind of feasible implementation of switching protective device 10 shown in Fig. 1, with reference to Fig. 2, wherein, described protection control unit 101, comprising: microprocessor 1010, communication interface 1011, input/output port 1012, clock 1013, EEPROM (Electrically Erasable Programmable Read Only Memo) (E2PROM) 1014 and the first bus 1015;
Wherein, described microprocessor 1010, described communication interface 1011, described input/output port 1012, described clock 1013, described electric erazable programmable memory 1014 are all connected with described the first bus 1015;
Described microprocessor 1010, for the current data that collects circuit being processed according to reference voltage and switching value, obtain current digital amount, and described current digital amount and described parameter are compared, determine the current state of described circuit, if the current state of described circuit is fault, sends described intake and warning output information and described on-load switch is carried out to circuit protection to described output and input module; Or, send described warning output information by described communication interface to remote control equipment.
Concrete, microprocessor 1010 is connected with the on-load switch in loading switch cabinet, for obtaining the current data on on-load switch circuit, because this current data is analog quantity, in order to carry out follow-up digital processing, therefore need this analog quantity to be converted into digital quantity, conversion process need to adopt reference voltage and switching value to process current data, obtains current digital amount.
Wherein, described intake comprises: higher level's power-off signal, energy storage signal, described warning output information comprises: trip signal output and the output of reporting to the police.
This intake refers to the switching value signal of outside input.It is the quantity of state that switching protective device 10 can normally be protected the needed on-load switch of on-load switch.Wherein, owing to being short-circuited, fault is; on-load switch is the ability that there is no the large electric current of ability disjunction; so after need to this on-load switch upper level breaker open operation (circuit breaker has the ability of the large electric current of disjunction) power-off, switching protective device 10 just can send trip signal and trip by on-load switch.For this scene, need to utilize the upper level circuit breaker of higher level's power-off signal notice protection control unit 101 whether absolutely electric.For on-load switch; its inside is provided with operating mechanism; this operating mechanism need to drive the dropout operation that could realize on-load switch by kinetic energy; therefore need to protect control unit 101 by energy storage signal notice, in the on-load switch of its protection, whether the spring members of operating mechanism has stored corresponding energy.In the time that microprocessor 1010 determines that on-load switch breaks down dropout, can generate trip signal output.When monitor staff carries out Control Room by remote supervisory and control(ling) equipment to loading switch cabinet, this microprocessor 1010 is connected with remote control equipment by communication interface 1011, now, when the on-load switch of loading switch cabinet breaks down, for example, when reaching default threshold value, current digital amount (it should be noted that, this threshold value is set according to the parameter of input above) time, microprocessor 1010 determines that on-load switch breaks down, generate the output of reporting to the police, and this warning output is sent to remote control equipment by communication interface 1011, so that monitor staff is known the malfunction of on-load switch.
Communication interface 1011 is connected with described remote control equipment, for giving described remote control equipment by described intake and described warning output information; And/or, receive the described parameter that described remote control equipment sends, and described parameter is sent to described protection control unit; And/or, according to the instruction of described remote control equipment, described on-load switch is carried out to circuit protection.
Concrete, the scheme of the described parameter sending for the described remote control equipment of reception, in local scene, this parameter can be by the entering apparatus of output and input module 100 in Fig. 1, and such as keyboard, touch screen etc. are input to this parameter in microprocessor 1010; For the scene of remote monitoring, monitor staff can input this parameter on remote control equipment, and is transferred to microprocessor 1010 by communication interface 1011.For the scene of according to the instruction of described remote control equipment, described on-load switch being carried out circuit protection; when microprocessor 1010 sends to intake and warning output information after remote control equipment by communication interface 1011; monitor staff knows that according to intake and warning output information on-load switch is in malfunction; now can send instruction to microprocessor 1010 by remote control equipment, instruction microprocessor 1010 carries out circuit protection to described on-load switch.
Described input/output port 1012, is connected with described power module 102, external equipment and described on-load switch; For sending described intake and described warning output information to described external equipment; Or, for sending described intake and described warning output information to described on-load switch;
Wherein, external equipment can but be not defined as: distribution transformer monitoring terminal (distribution Transformer supervisory Terminal Unit, be called for short: TTU); (Feeder Terminal Unit, is called for short: FTU) line feed terminals; (Distribution Terminal Unit is called for short: DTU) etc., can be also outside indicator light distribution terminal.The warning signal that for example trips sends, and outside tripping operation instruction etc. are bright, the tripping operation of warning on-load switch.
Described clock, for providing temporal information;
Concrete, clock provides temporal information, for example, 00: 05 timesharing on February 26 in 2014, microprocessor 1010 determines that according to current digital amount on-load switch breaks down, this microprocessor 1010 can also send to this time information output and input module 100 to show, or is transferred to remote control equipment by communication interface 1011, so that monitor staff is known concrete time of failure.
Described electric erazable programmable memory, for storing described parameter.
Owing to still can ensureing the characteristic that parameter is not lost after the power-off of electric erazable programmable memory, in this device, apply this electric erazable programmable memory, can further improve the reliability of this unit protection on-load switch.
With reference to Fig. 2, described power module 102, comprising: Switching Power Supply 1020, current absorption module 1021, protective circuit 1022 and the second bus 1023;
Wherein, described Switching Power Supply 1020, described current absorption module 1021 and described protective circuit 1022 are connected with described the second bus 1023 respectively;
Described Switching Power Supply 1020, in the time having accessory power supply, accesses described accessory power supply and provides power supply for described output and input module 100 and described protection control unit 101;
Described current absorption module 1021, for when without described accessory power supply, for described output and input module 100 and described protection control unit 101 provide power supply;
Concrete, the current energy of described current absorption module 1021 by Absorption Current instrument transformer provides power supply for described output and input module 100 and described protection control unit 101.
Described protective circuit 1022, for the protection of described Switching Power Supply 1020 and described current absorption module 1021.
Concrete, this power module 102 provides accessory power supply power supply or self-powered, and wherein accessory power supply scope is: AC/DC10～264V, can adapt to various applied environments.Have in external power source environment and can power or only use auxiliary power supply with self-powered and auxiliary power supply simultaneously, when without external power source environment, can use self-powered, two kinds of supply power modes all can make described device normally work, and it is better that two kinds of power supplys all connect effect.
With reference to Fig. 2, described output and input module 100, comprising: liquid crystal display 1001 and operation interface 1002;
Described liquid crystal display 1001 is connected with described the first bus 1015; Described operation interface 1002 is connected with described the first bus 1015;
Wherein, described liquid crystal display 1001, for showing described warning output information;
Described operation interface 1002 is made up of button, for receiving described parameter.
Concrete, liquid crystal display can adopt OLED self-luminescent material, and this OLED self-luminescent material resolution is high, visual angle is wide, image quality is even, reaction speed is fast, image stabilization, and brightness is high, rich color, can adapt to the environment of the inclement conditions such as+80 DEG C to-40 DEG C.
Further, on the basis of Fig. 2, the structural representation of the another kind of switching protective device that Fig. 3 provides for the utility model embodiment, with reference to Fig. 3, described power module 102, also comprises: storage capacitor 1024, tripping operation outlet 1025;
Described storage capacitor 1024, is connected with described the second bus 1023, and for when the non-transformer, in order to thread off, operation provides electric energy;
Described tripping operation outlet 1025, is connected with described the second bus 1023, in the time that described protection control unit 101 need to trip according to the current state of described circuit is definite, sends tripping operation instruction to described on-load switch.
Concrete, when protection control unit 101 need to trip according to the current state of described circuit is definite, instruction power module 102, the switching winding that exports 1025 control overhead switches by tripping operation is implemented trip operation.And this tripping operation outlet 1025 is active outlet, do not need outside to provide tripping operation required energy.
Concrete, this tripping operation outlet 1025 provides tripping operation required electric energy by storage capacitor 1024.The tripping operation energy comparison needing due to breaking coil is many, so if be arranged in the situation without accessory power supply, storage capacitor 1024 can have Chu Haoneng electric in the situation that one, for tripping operation ready in advance.Certainly in the time having accessory power supply, accessory power supply has had enough abilities, does not need to use the energy of storage capacitor 1024, but the in the situation that of unpredictable road, accessory power supply dead electricity (for example, fuse has broken), now just can provide required electric energy by storage capacitor 1024.
Further; on the basis of Fig. 3; the structural representation of the another kind of switching protective device that Fig. 4 provides for the utility model embodiment; with reference to Fig. 4; described power module 102, specifically comprises: exchange--direct current conversion (AC/DC) module 1020a, direct current--direct current conversion (DC/DC) module 1020b, electric current--direct current (DC) module 1021a, filter circuit of pressure-stabilizing 1022a, protection supervisory circuit 1022b.
Wherein, exchanging--DC conversion modules 1020a and direct current--DC conversion modules 1020b is the nucleus module of Switching Power Supply 1020, exchanges--DC conversion modules 1020a, in the time that accessory power supply is alternating current, converts direct current to alternating current; Direct current--DC conversion modules 1020b, for being galvanic environment when accessory power supply, converts the power supply of different electric pressures to the power supply that can meet protection control unit 101 demands; Electric current--DC Module 1021a, in the time there is no the environment of accessory power supply, converts the induced current of current transformer to the power supply that can meet protection control unit 101 demands.Wherein adopt the auxiliary power supply summation current transformer power supply needs that effectively intact device is powered, two kinds of supply power modes best results of simultaneously powering.With reference to Fig. 4; protective circuit 1022 specifically comprises: filter circuit of pressure-stabilizing 1022a, protection supervisory circuit 1022b, power mode is all finally to convert the power supply that can meet protection control unit 101 demands under the control of filter circuit of pressure-stabilizing 1022a, protection supervisory circuit 1022b in above-mentioned three.
The logic function of above-mentioned switching protective device 10 is simply described as follows: first, before work, need the operating mode of the circuit that user protects as required that corresponding parameter is set, this parameter can be inputted in these switching protective devices 10 by output above and input module 100, and is stored by E2PROM1014; Or user is by remote control equipment input parameter, this parameter is stored in E2PROM1014 through communication interface 1011.Further, the attainable protection type of switching protective device 10 is: overcurrent protection, the protection of large current interlock, zero sequence overcurrent protection when zero sequence overcurrent protection (wherein user can select to thread off or warning).Parameter can comprise: current value, delay time, curve type (specified time, inverse time lag, limit inverse time lag), set up after various parameters, and switching protective device 10 both can enter operating state.For overcurrent protection function: when the protection control unit 101 of switching protective device 10 monitors line current and meets or exceeds the current value that user arranges, after time delay (delay time is arranged by user), instruction power module 102 sends tripping operation instruction, if in time delay electric current recover arrange electric current with next do not need tripping operation, illustrate that circuit is the disturbance of primary current, recover again normal at once, for large current interlock function: because on-load switch does not possess the ability of the large electric current of disjunction, if there is large line faults such as short circuits, on-load switch is (current value is set by the user) that there is no this large electric current of ability disjunction, therefore now need locking on-load switch can not allow its disjunction, its higher level's circuit breaker divides has no progeny, the protection control unit 101 of switching protective device 10 detects after circuit dead electricity, control power module 102 sends trip command allows on-load switch separating brake (if only connect current transformer power supply mode herein, because main line has not had electricity, need the ability of using storage capacitor 1024 to carry out separating brake).Zero sequence overcurrent function and overcurrent protection function are basically identical, repeat no more herein.
Concrete, the utility model can be applicable to various power supplys and power free occasion, in the place without secondary power supply, the utility model can absorb by current transformer the work of enough electric weight safety and stability, the communication interface being equipped with is specifically as follows RS485, and therefore the utility model also can be applicable to the power supply place that automaticity is higher.The utility model can real time monitoring circuit earth fault and short trouble, and implement the separating brake to on-load switch according to different situations.Can realize the automatism isolation of faulty line, the related incidents that greatly reduces fault-free circuit has a power failure, dwindles fault outage scope, shortens customer outage hours, thereby improves user's power supply reliability.
The external structure schematic diagram of the another kind of switching protective device 10 that Fig. 5-Fig. 7 provides for the utility model embodiment, with reference to Fig. 5, this switching protective device 10, also comprises: metal shell 1033, binding post 1036; And Fig. 5 illustrates the connected mode of a kind of switching protective device 10 and loading switch cabinet.
Described output and input module 100, described protection control unit 101 and described power module 102 are arranged at the inside of metal shell 1033;
Described metal shell 1033 bottoms are provided with described binding post 1036, for being connected with loading switch cabinet.
Concrete, this binding post 1036 is arranged on terminal base 1035, and this terminal base 1035 is arranged on the bonnet 1034 of metal shell 1033.This binding post can be spring terminal.
Further, the utility model adopts binding post 1036, this binding post 1036 adopts prepackage type spring terminal (as 10 of Fig. 5,11), be convenient to installation and removal, and be furnished with the drawer box 1039 (as Fig. 7) of fixed installation use, can be installed on corresponding on-load switch and also can concentrate group screen to install cashier's office in a shop.As long as drawer box 1039 is fixed to the position arranging in advance; carefully connect the wire at binding post 1036 by elementary diagram; switching protective device 10 is advanced in this drawer box 1039; in drawer box 1039, be provided with spring mechanism; switching protective device 10 can be fixed, then binding post 1036 correspondences are inserted on the terminal base 1035 of the utility model bonnet 1034.
With reference to Fig. 6, Fig. 6 provides the front view of switching protective device 10, and wherein, cover plate 1037 is for the protection of output and the input module of switching protective device 10, concrete, and this cover plate 1037 adopts glass fiber material, for the protection of liquid crystal display.The operation interface that multiple buttons form switching protective device 10 can be set on case panel 1038.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, in the time carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of the each embodiment technical scheme of the utility model.
Claims (6)
1. a switching protective device, is characterized in that, comprising: output and input module, protection control unit, power module;
Described output is connected respectively with described power module with input module, described protection control unit;
Wherein, described protection control unit, for carrying out circuit protection to on-load switch;
Described output and input module, for showing the current state of described circuit and/or to described protection control unit input parameter;
Described power module, is used to described output and input module and described protection control unit that power supply is provided;
Described protection control unit, comprising: microprocessor, communication interface, input/output port, clock, electric erazable programmable memory and the first bus;
Wherein, described microprocessor, described communication interface, described input/output port, described clock, described electric erazable programmable memory are all connected with described bus;
Described microprocessor, for carrying out circuit protection to described on-load switch; Or, send described warning output information by described communication interface to remote control equipment;
Wherein, described intake comprises: higher level's power-off signal, energy storage signal, and described warning output information comprises: trip signal output and the output of reporting to the police;
Described communication interface is connected with described remote control equipment, for giving described remote control equipment by described intake and described warning output information; And/or, receive the described parameter that described remote control equipment sends, and described parameter is sent to described protection control unit; And/or, according to the instruction of described remote control equipment, described on-load switch is carried out to circuit protection;
Described input/output port, is connected with described power module, external equipment and described on-load switch; For sending described intake and described warning output information to described external equipment; Or, for sending described intake and described warning output information to described on-load switch;
Described clock, for providing temporal information;
Described electric erazable programmable memory, for storing described parameter.
2. switching protective device according to claim 1, is characterized in that, described power module, comprising: Switching Power Supply, current absorption module, protective circuit and the second bus;
Wherein, described Switching Power Supply, described current absorption module and described protective circuit are connected with described the second bus respectively;
Described Switching Power Supply, in the time having accessory power supply, accesses described accessory power supply and provides power supply for described output and input module and described protection control unit;
Described current absorption module, for when without described accessory power supply, for described output and input module and described protection control unit provide power supply;
Described protective circuit, for the protection of described Switching Power Supply and described current absorption module.
3. switching protective device according to claim 2, is characterized in that, described power module, also comprises: storage capacitor, tripping operation outlet;
Described storage capacitor, is connected with described the second bus, and for when the non-transformer, in order to thread off, operation provides electric energy;
Described tripping operation outlet, is connected with described the second bus, in the time that described protection control unit need to trip according to the current state of described circuit is definite, sends tripping operation instruction to described on-load switch.
4. according to the switching protective device described in claim 1-3 any one, it is characterized in that, described output and input module, comprising: liquid crystal display and operation interface;
Described liquid crystal display is connected with described the first bus; Described operation interface is connected with described the first bus;
Wherein, described liquid crystal display, for showing described warning output information;
Described operation interface is made up of button, for receiving described parameter.
5. according to the switching protective device described in claim 1-3 any one, it is characterized in that, also comprise: metal shell, binding post;
Described output and input module, described protection control unit and described power module are arranged at inside;
Described metal shell bottom is provided with described binding post, for being connected with current transformer, described on-load switch.
6. switching protective device according to claim 4, is characterized in that, also comprises: metal shell, binding post;
Described output and input module, described protection control unit and described power module are arranged at inside;
Described metal shell bottom is provided with described binding post, for being connected with current transformer, described on-load switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273656.6U CN203983970U (en) | 2014-05-26 | 2014-05-26 | Switching protective device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420273656.6U CN203983970U (en) | 2014-05-26 | 2014-05-26 | Switching protective device |
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| Publication Number | Publication Date |
|---|---|
| CN203983970U true CN203983970U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420273656.6U Expired - Fee Related CN203983970U (en) | 2014-05-26 | 2014-05-26 | Switching protective device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485645A (en) * | 2014-12-31 | 2015-04-01 | 南宏电力科技有限公司 | Microcomputer relay protection method and device adopted on switch cabinet with load switch |
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2014
- 2014-05-26 CN CN201420273656.6U patent/CN203983970U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485645A (en) * | 2014-12-31 | 2015-04-01 | 南宏电力科技有限公司 | Microcomputer relay protection method and device adopted on switch cabinet with load switch |
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