CN209592956U - A kind of distribution line Intelligent reclosing system - Google Patents

Abstract

This application discloses a kind of distribution line Intelligent reclosing systems, including the microcomputer protecting device and breaker connecting with distribution line；First end is connect with microcomputer protecting device, the controllable switch that second end is connect with breaker, the closing circuit formed for being switched on or switched off microcomputer protecting device and breaker；It is connect with distribution line, the detection device for detecting distribution line electric parameter；The controller being connect respectively with the control terminal of controllable switch and detection device, for when determining that transient fault occurs for distribution line according to electric parameter, control controllable switch to be closed, to connect closing circuit；Otherwise control controllable switch disconnects, to disconnect closing circuit.The application is when distribution line breaks down; judge whether distribution line occurs transient fault using the electric parameter of detection device detection; to determine whether reclosing; it not only can guarantee the reliability and continuity of power distribution network power supply; it is also avoided that blindness combined floodgate bring endangers, plays a very good protection.

Description

A kind of distribution line Intelligent reclosing system

Technical field

This application involves technical field of electric automation, more particularly to a kind of distribution line Intelligent reclosing system.

Background technique

Distribution line, which refers to, to be sent to distribution transformer electric power from substation or the electric power of distribution substation is sent to electricity consumption The route of unit, it requires absolutely safe and reliable, to keep power supply continuity.

Currently, in order to protect the equipment in power distribution network, generalling use and being filled by Microcomputer Protection when distribution line breaks down Set the protection system constituted with breaker.When distribution line breaks down, the separating brake of microcomputer protecting device is closed the switch, and is caused Circuit breaker trip, while the position signal of breaker is switched and is closed a floodgate.After a latent period, the combined floodgate of microcomputer protecting device Switch will close automatically, connect closing circuit, make breaker closing, to improve the reliability and continuity of power distribution network power supply.

But current this protected mode is not differentiating the failure to distribution line due to blindly closing a floodgate, when When the failure that not can be self-healing occurs for distribution line, since the insulation on distribution line does not restore, automatic closing will be given again Power equipment brings impact, so that power outage expands, or even damage power equipment, it is seen then that current distribution line reclosing System has blindness, and protecting effect is bad.

Therefore, how a kind of scheme can solve above-mentioned technical problem is provided, is that those skilled in the art needs at present It solves the problems, such as.

Utility model content

The purpose of the application is to provide a kind of distribution line Intelligent reclosing system, not only can guarantee power distribution network power supply can By property and continuity, moreover it is possible to avoid blindness combined floodgate bring from endangering, play a very good protection.

In order to solve the above technical problems, this application provides a kind of distribution line Intelligent reclosing systems, comprising:

The microcomputer protecting device and breaker being connect with distribution line；

First end is connect with the microcomputer protecting device, the controllable switch that second end is connect with the breaker, for connecing On-off opens the closing circuit that the microcomputer protecting device and the breaker are formed；

It is connect with the distribution line, the detection device for detecting the distribution line electric parameter；

The controller being connect respectively with the control terminal of the controllable switch and the detection device, for when according to the electricity When gas parameter determines that transient fault occurs for the distribution line, the controllable switch closure is controlled, to connect the closing circuit； Otherwise it controls the controllable switch to disconnect, to disconnect the closing circuit.

Preferably, the detection device includes:

For detecting the voltage check device of voltage between phases；

For detecting the current detection means of three-phase current；

Connect respectively with the voltage check device and the current detection means, for for the voltage check device and The exchange that the detection process of the current detection means provides alternating current detects power supply.

Preferably, the distribution line Intelligent reclosing system further include:

One end is connect with the detection device, and the other end connect with the controller, is used for the detection device and institute State the first isolating device that controller is isolated.

Preferably, first isolating device includes；

One end is connect with the controller, the transmitter that the other end is connect with the detection device.

Preferably, the distribution line Intelligent reclosing system further include:

It is connect with the controller, for the sending when the controller determines that non-instantaneous failure occurs for the distribution line The warning device of alarm.

Preferably, the controllable switch is 7ZJ relay.

Preferably, the distribution line Intelligent reclosing system further include:

It is connect respectively with the distribution line, the controller and the detection device, for preventing the distribution line High-voltage electricity alter row to the controller and the detection device the second isolating device.

Preferably, second isolating device is vacuum contactor.

Preferably, the distribution line Intelligent reclosing system further include:

The communication device being connect with the controller；

The terminal being connect with the communication device；

Then the processor is also used to that warning message is sent to the terminal by the communication device.

Preferably, the controller is programmable logic controller (PLC) PLC.

This application provides a kind of distribution line Intelligent reclosing systems, including the Microcomputer Protection connecting with distribution line Device and breaker；First end is connect with microcomputer protecting device, the controllable switch that second end is connect with breaker, for connect or Disconnect the closing circuit that microcomputer protecting device and breaker are formed；It connect with distribution line, electrically join for detecting distribution line Several detection devices；The controller being connect respectively with the control terminal of controllable switch and detection device, for when according to electric parameter When determining that transient fault occurs for distribution line, control controllable switch closure, to connect closing circuit；Otherwise control controllable switch is disconnected It opens, to disconnect closing circuit.

The distribution line Intelligent reclosing system of the application is first sharp when distribution line, which breaks down, causes circuit breaker trip The electric parameter that distribution line is detected with detection device judges what whether distribution line occurred according to electric parameter by controller Otherwise transient fault controls controllable switch if so, control controllable switch closure makes breaker reclosing to connect closing circuit It disconnects to disconnect closing circuit, i.e., does not allow reclosing, not only can guarantee the reliability and continuity of power distribution network power supply in this way, also It is avoided that blindness combined floodgate bring endangers, plays a very good protection.

Detailed description of the invention

It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to institute in the prior art and embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is a kind of structural schematic diagram of distribution line Intelligent reclosing system provided herein；

Fig. 2 is the structural schematic diagram of another distribution line Intelligent reclosing system provided herein；

Fig. 3 is a kind of detection route attachment structure schematic diagram provided herein；

Fig. 4 is another detection route attachment structure schematic diagram provided herein；

Fig. 5 is another detection route attachment structure schematic diagram provided herein.

Specific embodiment

The core of the application is to provide a kind of distribution line Intelligent reclosing system, not only can guarantee power distribution network power supply can By property and continuity, moreover it is possible to avoid blindness combined floodgate bring from endangering, play a very good protection.

To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.

Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of distribution line Intelligent reclosing system provided herein, Include:

The microcomputer protecting device and breaker being connect with distribution line；

First end is connect with microcomputer protecting device, the controllable switch 1 that second end is connect with breaker, for being switched on or switched off The closing circuit that microcomputer protecting device and breaker are formed；

It is connect with distribution line, the detection device 2 for detecting distribution line electric parameter；

The controller 3 being connect respectively with the control terminal of controllable switch 1 and detection device 2, for when true according to electric parameter When determining distribution line generation transient fault, control controllable switch 1 is closed, to connect closing circuit；Otherwise control controllable switch 1 is disconnected It opens, to disconnect closing circuit.

Specifically, in order to solve the problems in the existing technology, this application provides one kind when event occurs for distribution line When barrier, it can judge automatically whether distribution line occurs transient fault, to determine whether that the distribution line of reclosing is intelligently overlapped Brake system.The distribution line Intelligent reclosing system of the application includes microcomputer protecting device, breaker, controllable switch 1, detection dress Set 2 and controller 3.Wherein, microcomputer protecting device is the relay protection that microcomputer is constituted, and hardware includes the micro process of core Device (can be single-chip microcontroller), is equipped with input channel, output channel, and man-machine interface and communication interface etc. have high reliablity, sensitivity The advantages that high, therefore, the application, improve distribution line Intelligent reclosing system on this basis.

Correspondingly, microcomputer protecting device in the prior art and breaker form closing circuit, according to Microcomputer Protection principle, Regardless of occurring which type of failure on distribution line, the closing switch of Microcomputer Protection, which has spent the regular hour, to be closed automatically, use To improve the power supply reliability and stability of power distribution network.

Correspondingly, as shown in Fig. 2, the application seals in controllably in the closing circuit of microcomputer protecting device and breaker composition Switch 1, controllable switch 1 are controlled by controller 3, controller 3 can for PLC (Programmable Logic Controller, Programmable logic controller (PLC)), when distribution line breaks down, the separating brake switch in microcomputer protecting device, which will act, (to be closed Close), at this point, the step switch of microcomputer protecting device closes a floodgate, it is equivalent to and issues Microcomputer Protection signal, simultaneously because Microcomputer Protection fills The separating brake set closes the switch, circuit breaker trip, and the position signal of breaker, which switchs, at this time closes a floodgate, and controller 3 receives microcomputer guarantor Start immediately after the position signal of shield signal and breaker, controller 3 is started to work, that is, is waken up (in distribution line fault-free When in a dormant state)；After wake-up, controller 3 will control 1 separating brake of controllable switch (disconnection), be used to lockout microcomputer protection and fill The closing switch set, i.e. disconnection closing circuit, controller 3 after the breakdown judge of distribution line to deciding whether to make controllable switch again 1 closes a floodgate, and thus efficiently solves the blindness of microcomputer protecting device reclosing.

Correspondingly, after locking closing switch avoids blindly closing a floodgate, detection device 2 acquires the electrical ginseng on distribution line Number, and electric parameter is transmitted to controller 3 and is analyzed and processed, controller 3 judges failure further according to the data of analysis processing Type, if transient fault, that is, the failure that can be self-healing occur for distribution line, controller 3 controls controllable switch 1 and is closed, and closes a floodgate Circuit is switched on, and breaker realizes that reclosing, controller 3 restore again to dormant state under the control of microcomputer protecting device； If non-instantaneous failure, i.e., the failure that not can be self-healing occur for distribution line, controller 3 continues to control 1 separating brake of controllable switch, close Lock circuit is disconnected, and breaker can not reclosing.

This application provides a kind of distribution line Intelligent reclosing systems, including the Microcomputer Protection connecting with distribution line Device and breaker；First end is connect with microcomputer protecting device, the controllable switch that second end is connect with breaker, for connect or Disconnect the closing circuit that microcomputer protecting device and breaker are formed；It connect with distribution line, electrically join for detecting distribution line Several detection devices；The controller being connect respectively with the control terminal of controllable switch and detection device, for when according to electric parameter When determining that transient fault occurs for distribution line, control controllable switch closure, to connect closing circuit；Otherwise control controllable switch is disconnected It opens, to disconnect closing circuit.

The distribution line Intelligent reclosing system of the application is first sharp when distribution line, which breaks down, causes circuit breaker trip The electric parameter that distribution line is detected with detection device judges what whether distribution line occurred according to electric parameter by controller Otherwise transient fault controls controllable switch if so, control controllable switch closure makes breaker reclosing to connect closing circuit It disconnects to disconnect closing circuit, i.e., does not allow reclosing, not only can guarantee the reliability and continuity of power distribution network power supply in this way, also It is avoided that blindness combined floodgate bring endangers, plays good protecting effect.

On the basis of the above embodiments:

Embodiment as one preferred, detection device 2 include:

For detecting the voltage check device of voltage between phases；

For detecting the current detection means of three-phase current；

It is connect respectively with voltage check device and current detection means, for being voltage check device and current detection means Detection process provide alternating current exchange detect power supply.

Specifically, the detection device 2 of the application can be by exchange detection power supply and high-precision voltage check device, electric current Detection device composition, controller 3 can control the opening and closing of exchange detection power supply in detection device 2, and processing voltage The data of detection device and current detection means acquisition.Wherein, voltage check device can be voltage transformer, current detecting dress Setting to be current transformer, and exchange detection power supply can be using 2000V three-phase high-voltage exchange detection power supply.2000V three-phase is high Pressing exchange detection power supply is mainly to provide exchanging for 2000V with current detection means to voltage check device to detect power supply signal, Then the voltage and current on distribution line is detected respectively by voltage check device and current detection means, and by the voltage of acquisition It is transmitted to controller 3 with electric current to be analyzed and processed, controller 3 calculates the impedance on distribution line according to voltage and current Value.

Correspondingly, when PLC controller 3 receives two signals of microcomputer protecting device and breaker and start simultaneously, Controller 3 first can issue cut-off signal to controllable switch 1, to be latched breaker；After a delay, detection device 2 It is connected with distribution line, forms exchange measure loop, the voltage check device and current detection means in detection device 2 are examined respectively The voltage and current of survey line road, and the data that will test pass to PLC controller 3；PLC controller 3 receive data it Afterwards, by the way that the impedance value Z of distribution line is calculated_j, then by measured value Z_jWith target value Z_minIt is compared, so that judgement is matched The fault type of electric line finally determines whether the signal for issuing breaker reclosing according to fault type.Work as Z_j≥Z_minWhen, Controller 3 judges that distribution line for transient fault, and issues closure signal to controllable switch 1, makes breaker reclosing, on power grid Electricity continues to run；As any one phase Z_j< Z_minWhen, it is non-instantaneous failure that controller 3, which is judged as failure at this time, will continue to close Closing circuit is locked, and alarm signal can be issued, notifies staff to carry out line maintenance, prevents accident from further expanding.

Correspondingly, controller 3 can judge fault type in the impedance value of distribution line whether changed method, So the impedance value mainly on acquisition distribution line.As shown in Fig. 3, Fig. 4 and Fig. 5, controller 3 is in circuit breaker trip and microcomputer Start rapidly when protection starting, and be latched closing circuit, then by closure A.C. contactor JCQ, do Huang relay Ja, Jb and Jc and high voltage isolator QF；And exchange detection power supply injection three-phase 2000V high pressure detection power supply is controlled, by certain time delay Afterwards, it can be acquired by current transformer TA1, TA2 and TA3 in detection device 2 and voltage transformer TV1, TV2 and TV3 Electric current and voltage on distribution line, and it is sent to the size that distribution line impedance is calculated in controller 3, and judge failure accordingly Type.

It should be noted that in setting target value Z_minWhen, 10kV distribution line is disconnected first, by the application distribution line Each section of Intelligent reclosing system connects, and then injects 2000V three-phase high-voltage into distribution line and detects power supply, at this time may be used Each switching value is manually controlled with the manual overvide by system.As shown in figure 4, be first closed dry Huang relay Ja, Jb and Vacuum contactor QF disconnects Jc, thus measure distribution line it is normal when AB alternate impedance magnitude Z_ab, most according to local climate The case where when severe, is arranged one and compares Z_abSmaller target value Z_{ab min}；Then all switches are resetted, dry yellow relay is closed Jb, Jc and vacuum contactor QF disconnect Ja, then the measure loop of BC two-phase can be formed, so that it is big to measure the alternate impedance of BC Small Z_bc, Z is compared in setting the case where when most severe according to local climate_bcSmaller target value Z_{bc min}；Then institute is resetted again There is switch, closes dry Huang relay Ja, Jc and vacuum contactor QF, disconnect Jb, then can form the alternate measure loop of AC, thus Measure the alternate impedance magnitude Z of AC_ca, Z is compared in setting one the case where when most severe according to local climate_caSmaller mesh Scale value Z_{ca min}；All switches are resetted again, dry Huang relay Ja, Jb, Jc and vacuum contactor QF are closed, to measure ABC Three-phase impedance magnitude Z_abc, Z is compared in setting one the case where when most severe according to local climate_abcSmaller target value Z_{abc min}, target value Z can be completed according to the above process_minSetting.

It should also be noted that, when distribution line breaks down and detected, voltage between phases and alternate can detecte Electric current, for ease of description, the application can use U_aRepresent phase voltage, the U of AB_bRepresent phase voltage, the U of BC_cRepresent the phase electricity of AC Pressure, I_aRepresent electric current, the I of A phase_bRepresent electric current, the I of B phase_cRepresent the electric current of C phase.Controller 3 when judging, fromWithIn select biggish one, similarly fromWithIn select biggish one, fromWithIn select biggish one.

Correspondingly, as shown in figure 4, when alternate instantaneous short-circuit failure occurs for AB phase, controller 3 is first latched and closes a floodgate back at this time Road.After failure, U_aIt is reduced to the half or so of maximum value, and U_bAnd U_cIt is held essentially constant, I_aAnd I_bIt will increase several times, and I_cBase Originally it remains unchanged.But when automatically restoring fault, i.e. insulation recovery, the impedance value on distribution line has also returned to original at this time Some values, according toKnown to: Z_ab≥Z_{ab min}、Z_bc≥Z_{bc min}、Z_ca≥Z_{ca min}, at this time can according to above-mentioned judgment basis To learn AB phase happens is that transient fault, controller 3 can unlock the locking to closing circuit, make electricity operation on power grid.BC phase The judgement of alternate instantaneous short-circuit failure is similarly available with CA phase.When AB phase, BC phase and CA phase course of emergency cross resistance wink When short circuit when, since failure can be restored automatically, at this time as instantaneous short-circuit failure alternate with AB, reclosing may be implemented.

Correspondingly, as shown in figure 5, controller 3 equally can be first latched at this time when three-phase instantaneous short-circuit failure occurs for ABC Closing circuit.After failure, U_a、U_bAnd U_cVoltage all become zero substantially, I_a、I_bAnd I_cIt will increase several times or even dozens of times.But After failure is voluntarily restored, i.e. insulation recovery, the impedance value on distribution line has also returned to original value at this time, according toKnown to: Z_ab≥Z_{ab min}、Z_bc≥Z_{bc min}、Z_ca≥Z_{ca min}, generation can be learnt according to above-mentioned judgment basis at this time Be three-phase instantaneous short-circuit failure, controller 3 can unlock the locking to closing circuit, make electricity operation on power grid.

Correspondingly, as shown in figure 4, being first latched closing circuit when alternate non-instantaneous short trouble occurs for AB phase.Failure Afterwards, U_aIt can be reduced to half of maximum value or so, and U_bAnd U_cIt is held essentially constant, I_aAnd I_bIt will increase several times, and I_cIt is basic to protect It holds constant.According toKnown to: Z_ab< Z_{ab min}、Z_bc≥Z_{bc min}、Z_ca≥Z_{ca min}, at this time can according to above-mentioned judgment basis To learn AB phase happens is that non-instantaneous short trouble, controller 3 continue to locking closing circuit, can also notify work people The judgement of the alternate non-instantaneous short trouble of member's progress line maintenance, BC phase and CA phase is similarly available.When AB phase, BC phase and CA phase course of emergency cross resistance it is non-instantaneous short circuit when, at this time as non-instantaneous short trouble alternate with AB, controller 3 is continued to It is latched closing circuit, staff can also be notified to carry out line maintenance.

Correspondingly, as shown in figure 5, first locking is closed a floodgate back at this time when the non-instantaneous short trouble of distribution line generation three-phase Road.After failure, U_a、U_bAnd U_cAll become zero substantially, and I_a、I_bAnd I_cIt can increase severely.According toKnown to: Z_ab< Z_{ab min}、Z_bc< Z_{bc min}、Z_ca< Z_{ca min}, can be learnt according to above-mentioned judgment basis at this time happens is that the non-instantaneous short trouble of three-phase, control Device 3 continues to locking closing circuit, and staff can also be notified to carry out line maintenance.Pass through when three-phase occurs for distribution line Cross resistance it is non-instantaneous short circuit when, at this time as the non-instantaneous short trouble of three-phase, controller 3 continue to locking closing circuit, Staff can also be notified to carry out line maintenance.

It should be noted that detection device 2 is in addition to the above described configuration, it can also be other structures, the application is herein It is not particularly limited.

Embodiment as one preferred, the distribution line Intelligent reclosing system further include:

One end is connect with detection device 2, and the other end connecting with controller 3, carrying out for will test device 2 and controller 3 First isolating device of isolation.

Specifically, it is contemplated that the safety of controller 3, controller 3 and detection device 2 can by the first isolating device into Row connection and isolation prevent high pressure intrusion controller 3 and cause the damage of controller 3.Detection device 2 is using 2000V tri- Phase high-voltage alternating detects power supply, and the high pressure intrusion controller 3 of 2000V can be effectively isolated in the first isolating device, moreover it is possible to play Jamproof effect.

Embodiment as one preferred, the first isolating device include；

One end is connect with controller 3, the transmitter that the other end is connect with detection device 2.

It specifically, include pick-up in the first isolating device in order to guarantee the safety of distribution line Intelligent reclosing system Device, other than transmitter, the first isolating device can not also be particularly limited herein for other devices, the application.

Embodiment as one preferred, the distribution line Intelligent reclosing system further include:

It is connect with controller 3, for issuing the alarm of alarm when controller 3 determines that non-instantaneous failure occurs for distribution line Device.

Specifically, it is contemplated that after non-instantaneous failure occurs for distribution line, need to notify staff in time, therefore, this Shen Distribution line Intelligent reclosing system please is also provided with warning device.Non-instantaneous failure can occur determining distribution line Afterwards, controller 3 controls warning device and issues alarm.

As it can be seen that the application has the function of being differentiated to the fault type on distribution line, it, can when transient fault occurs So that distribution line fast recovery of power supply；When on distribution line happens is that continue to be latched closing circuit when non-instantaneous failure, and Alarm signal can be issued and obtain on-call maintenance.

More specifically, warning device can be combined aural and visual alarm, or voice alarm can also be other, this Application is not particularly limited herein.

Embodiment as one preferred, controllable switch 1 are 7ZJ relay.

Specifically, in order to reduce the cost of distribution line Intelligent reclosing system, the controllable switch 1 of the application can be 7ZJ relay disconnects under the control of controller 3 for closed type relay when distribution line breaks down, and realizes and closes The locking in lock circuit.

It should be noted that controllable switch 1 can be 7ZJ relay, it can also be other, the application is not done especially herein Restriction.

Embodiment as one preferred, the distribution line Intelligent reclosing system further include:

It is connect respectively with distribution line, controller 3 and detection device 2, for preventing the high-voltage electricity of distribution line from altering row extremely Second isolating device of controller 3 and detection device 2.

Specifically, it is contemplated that the safety of distribution line Intelligent reclosing system, distribution line Intelligent reclosing system is also It can be isolated by the second isolating device with distribution line.After the controller 3 of distribution line Intelligent reclosing system starts, Controller 3 can be connect by the second isolating device with distribution line, realize the measurement to the impedance value of distribution line.

Embodiment as one preferred, the second isolating device are vacuum contactor.

Specifically, it is contemplated that the isolation effect of the distribution line of distribution line Intelligent reclosing system and high pressure, second every It can be vacuum contactor from device, after controller 3 starts, controller 3 can control the switch motion of vacuum contactor, thus It is connect with distribution line, realizes the measurement to the impedance value of distribution line, vacuum contactor here is AC vacuum contactor.

Correspondingly, the connection of detection device 2 and distribution line is the friendship by voltage transformer and current transformer part Flow vacuum contactor.The composition element of AC vacuum contactor may include operating mechanism and vacuum interrupter.Vacuum interrupter Generated electric arc reliably extinguishes when can make running current with on-off operating current.Operating mechanism may include armature With the coil of ribbon core, when the coil is energized, armature can be with automatic absorbing, and vacuum contactor is in closed state at this time；Work as line When circle power-off, armature is separated, and vacuum contactor is in an off state.

In addition, the model of the AC vacuum contactor of the application can be JCZ1-10, the drop-out current of JCZ1-10 can be with Reach 100A, can satisfy distribution line Intelligent reclosing system cut-offs requirement.The movement frequency that AC vacuum contactor allows Rate will be lower than dry yellow relay, but since this system optimizes fault distinguishing process, reduce switch motion number, therefore exchange Vacuum contactor is also able to satisfy system requirements, and can guarantee distribution line Intelligent reclosing system reliability of operation, meets It cut-offs requirement.

In addition, the distribution line Intelligent reclosing system of the application can be using the form of cabinet body installation, distribution line intelligence Brake system can be overlapped to connect by vacuum contactor with the feeder line in power distribution network, vacuum contactor can prevent 10kV on distribution line High pressure make a false countercharge into system and damage system；In addition, the distance between each component of increase system, is reduced between component Interference and the influence of Leakage Current, can remove the bus rod of system, the detection route of system detecting device 2 is connect through vacuum Tentaculum is directly accessed line side, can remove among the control switch and corresponding first isolating device of system line trackside after Electric appliance is ensured the isolation of whole system by the vacuum circuit breaker of 10KV, is saved space for the cabinet body of system, can be made system In insulation distance between each component increase.

It should also be noted that, the second isolating device can be vacuum contactor, it can also be other, the application is herein not It is particularly limited.

Embodiment as one preferred, the distribution line Intelligent reclosing system further include:

The communication device being connect with controller 3；

The terminal being connect with communication device；

Then processor is also used to that warning message is sent to terminal by communication device.

Specifically, when non-instantaneous failure occurs for distribution line, this case that preferably notifying staff, this Shen Communication device and terminal please be also provided with, terminal here can be mobile phone etc., and communication device one end is connect with controller 3, is connect The warning message that admission controller 3 is sent, the other end can connect wirelessly with terminal, warning message can be sent to On the mobile phone of staff or other terminals.

In addition, communication device can use GSM/GPRS (Global System for Mobile Communications/General Packet Radio Service, global system for mobile communications/general packet radio service Technology) warning message can be sent to work people by forms such as short message or phones using GSM/GPRS module by module in real time Member.

It should be noted that the communication device of the application can be GSM/GPRS, or other, such as wireless network, The application is not particularly limited herein.

In addition, terminal here can for mobile phone, computer, tablet computer or other, the application is not done particularly herein It limits.

Embodiment as one preferred, controller 3 are programmable logic controller (PLC) PLC.

Specifically, in order to further decrease the cost of distribution line Intelligent reclosing system, the controller 3 of the application can be with For PLC.For the more other controllers 3 of PLC, have control logic simple, at low cost, the advantages that cost performance is high.

It should be noted that can also not do special limit herein using other controllers 3, the application other than PLC It is fixed.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged Except there is also other identical elements in the process, method, article or apparatus that includes the element.

The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (10)

1. a kind of distribution line Intelligent reclosing system characterized by comprising

The microcomputer protecting device and breaker being connect with distribution line；

First end is connect with the microcomputer protecting device, the controllable switch that second end is connect with the breaker, for connect or Disconnect the closing circuit that the microcomputer protecting device and the breaker are formed；

It is connect with the distribution line, the detection device for detecting the distribution line electric parameter；

The controller being connect respectively with the control terminal of the controllable switch and the detection device, for when according to the electrical ginseng When number determines that transient fault occurs for the distribution line, the controllable switch closure is controlled, to connect the closing circuit；Otherwise It controls the controllable switch to disconnect, to disconnect the closing circuit.

2. distribution line Intelligent reclosing system according to claim 1, which is characterized in that the detection device includes:

For detecting the voltage check device of voltage between phases；

For detecting the current detection means of three-phase current；

It is connect respectively with the voltage check device and the current detection means, for for the voltage check device and described The exchange that the detection process of current detection means provides alternating current detects power supply.

3. distribution line Intelligent reclosing system according to claim 1, which is characterized in that the distribution line is intelligently overlapped Brake system further include:

One end is connect with the detection device, and the other end connect with the controller, is used for the detection device and the control The first isolating device that device processed is isolated.

4. distribution line Intelligent reclosing system according to claim 3, which is characterized in that the first isolating device packet It includes；

One end is connect with the controller, the transmitter that the other end is connect with the detection device.

5. distribution line Intelligent reclosing system according to claim 4, which is characterized in that the distribution line is intelligently overlapped Brake system further include:

It is connect with the controller, for issuing alarm when the controller determines that non-instantaneous failure occurs for the distribution line Warning device.

6. distribution line Intelligent reclosing system according to claim 1, which is characterized in that the controllable switch is 7ZJ Relay.

7. distribution line Intelligent reclosing system according to claim 1-6, which is characterized in that the distribution line Intelligent reclosing system further include:

It is connect respectively with the distribution line, the controller and the detection device, the height for preventing the distribution line Piezoelectricity alters the second isolating device of row to the controller and the detection device.

8. distribution line Intelligent reclosing system according to claim 7, which is characterized in that second isolating device is Vacuum contactor.

9. distribution line Intelligent reclosing system according to claim 8, which is characterized in that the distribution line is intelligently overlapped Brake system further include:

The communication device being connect with the controller；

The terminal being connect with the communication device；

Then the processor is also used to that warning message is sent to the terminal by the communication device.

10. distribution line Intelligent reclosing system according to claim 9, which is characterized in that the controller is that can compile Journey logic controller PLC.