CN204536498U - Isolating switch tripping coil full working scope monitoring circuit - Google Patents
Isolating switch tripping coil full working scope monitoring circuit Download PDFInfo
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- CN204536498U CN204536498U CN201520198659.2U CN201520198659U CN204536498U CN 204536498 U CN204536498 U CN 204536498U CN 201520198659 U CN201520198659 U CN 201520198659U CN 204536498 U CN204536498 U CN 204536498U
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Abstract
The utility model discloses a kind of isolating switch tripping coil full working scope monitoring circuit, comprise closing circuit, jump position monitoring circuit, trip(ping) circuit, co-bit monitoring circuit, monitoring circuit and locked loop after closing, innovative point has been in the parallel connection of the two ends of closing circuit closing coil full working scope monitoring circuit, the two ends of trip(ping) circuit are in parallel breaking coil full working scope monitoring circuit, two monitoring circuits work alone, the full working scope real time monitoring to isolating switch tripping coil can be realized, and in time abnormal information is transferred to control backstage when tripping coil occurs abnormal, operation maintenance personnel is facilitated to safeguard in time, ensure the reliability and stability of using electricity system.
Description
Technical field
The utility model relates to the secondary circuit of protective relaying device, specifically a kind of isolating switch tripping coil full working scope monitoring circuit.
Background technology
Along with the develop rapidly of national economy, the requirement of user to the quality of power supply is more and more higher, the social danger that unplanned power failure causes is also increasing, the technical task that the global reliability how to improve power-supply unit operation has further become electric power enterprise to avoid.As everyone knows, in the daily O&M process of electrical network, the breaking-closing operating of isolating switch is the most common, also very frequent.If the tripping coil of imagination isolating switch is often in damage; when success ratio when scheduling or O&M operating personnel carry out normal breaking-closing operating and device fails, the performance factor of protective device all will reduce undoubtedly greatly, thus the inevasible safe and stable operation of user and electrical network of giving causes damage.
At present, in power department and Ge great relay protection device producer, there is no to meet the monitoring circuit simultaneously isolating switch tripping coil full working scope being carried out to real time monitoring.
Summary of the invention
For the defect of prior art, the utility model provides a kind of isolating switch tripping coil full working scope monitoring circuit, replace original breaker tripping and closing monitoring circuit and isolating switch tripping coil operating mode is carried out intersecting the scheme monitored, realize the full working scope real time monitoring to isolating switch tripping coil, thus heighten the reliability of mains supply.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of isolating switch tripping coil full working scope monitoring circuit, comprise trip(ping) circuit, closing circuit, described closing circuit comprises closing coil HQ, combined floodgate guard relay HBJ and closing pulse incoming end, the coil of described closing coil HQ and combined floodgate guard relay, normal battle is connected to the positive F1 of operating power after HBJ-1 series connection and operating power is born between F22, closing pulse is by closing pulse incoming end access closing circuit, described trip(ping) circuit comprises breaking coil TQ, tripping operation guard relay TBJ and tripping operation pulse incoming end, the coil of described breaking coil TQ and tripping operation guard relay, normal battle is connected to the positive F1 of operating power after TBJ-1 series connection and operating power is born between F22, tripping operation pulse is by tripping operation pulse incoming end access trip(ping) circuit, the two ends of closing coil HQ are parallel with closing coil full working scope monitoring circuit LOOP1, the two ends of breaking coil TQ are parallel with breaking coil full working scope monitoring circuit LOOP2, and described breaker tripping and closing coil full working scope monitoring circuit carries out full working scope real time monitoring to breaker tripping and closing coil respectively.
Further, described closing coil full working scope monitoring circuit LOOP1 comprises the diode of battery E1, reometer A1, current-limiting resistance R1 and one or more series aiding connections be cascaded, and the positive pole of diode is connected with the positive pole of battery E1; Described breaking coil full working scope monitoring circuit LOOP2 comprises the diode of battery E2, reometer A2, current-limiting resistance R2 and one or more series aiding connections be cascaded, and the positive pole of diode is connected with the positive pole of battery E2.
Further, the auxiliary contact of described reometer A1 and reometer A2 all with oriented control background transfer tripping coil abnormal signal.When there is work condition abnormality in closing coil HQ or breaking coil TQ, corresponding reometer number of degrees generation significant change, and then drive its auxiliary contact action, above send remote signalling to conjugate signal, thus realize the real time monitoring to isolating switch tripping coil full working scope.
Further, described current-limiting resistance R1, R2 make reometer A1, A2 reading when tripping coil operating mode is normal fall within the 1/3-1/2 interval of its range respectively.
Further, in described closing coil full working scope monitoring circuit LOOP1, there is diode D1, D2 of two series aiding connections, in described breaking coil full working scope monitoring circuit LOOP2, have diode D3, D4 of two series aiding connections.
The beneficial effects of the utility model: isolating switch tripping coil full working scope monitoring circuit described in the utility model comprises closing coil monitoring circuit LOOP1 and breaking coil monitoring circuit LOOP2, two monitoring circuits work alone, the full working scope real time monitoring to isolating switch tripping coil can be realized, and in time abnormal information is transferred to control backstage when tripping coil occurs abnormal, facilitate operation maintenance personnel to safeguard in time, ensure the reliability and stability of using electricity system.Thus improve because isolating switch tripping coil unusual service condition finds the scheduling that causes not in time or O&M operating personnel that when operation failure or device fails, protective device can not the problem of correct operation when carrying out normal breaking-closing operating.It is to the safe and stable operation ensureing grid equipment, and the global reliability tool improving electric power supply is of great significance.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model;
In figure: F1 ~ F11 and F22 is connection terminal number, wherein F1 be operating power just, F2 is that closing line enspheres; F3 is that TWJ negative terminal goes out; F4 is that breaking coil enters, F5 be protection close a floodgate into, F6 be outside close a floodgate into; F7 be outside trip into; F8 is that trip protection enters, F9 be locking trip into, F10 be locking close a floodgate into; F11 is that the total locking of operation enters, and F22 is that operating power is born.TWD is for jumping position pilot lamp, and HWD is co-bit pilot lamp, and HHD is for closing rear indicator light.TW1J and TW2J is for jumping position supervisory relay, and HWJ is co-bit supervisory relay; HBJ is combined floodgate guard relay, and TBJ is tripping operation guard relay; FTJ is anti-trip relay; HH1J and HH2J is for closing rear position relay; BSTJ is locking tripping relay, and BSHJ is locking closing relay.DL is the auxiliary contact of isolating switch, and what access trip(ping) circuit is normal opened contact, and what access closing circuit is normally closed contact; HQ is closing coil, and TQ is breaking coil; E1 and E2 is battery; D1, D2, D3, D4 are diode; A1, A2 are reometer; R1, R2 are current-limiting resistance.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model be described further and limit.
As shown in Figure 1, a kind of isolating switch tripping coil full working scope monitoring circuit, comprises closing circuit, jumping position monitoring circuit, trip(ping) circuit, co-bit monitoring circuit, closes rear monitoring circuit and locked loop.
Described closing circuit comprises closing coil HQ, combined floodgate guard relay HBJ and closing pulse incoming end F5, F6, wherein F5 be protection close a floodgate into, F6 be outside close a floodgate into, the coil of described closing coil HQ and combined floodgate guard relay HBJ, normal battle is connected to the positive F1 of operating power after HBJ-1 series connection and operating power is born between F22, protection closing pulse closes a floodgate into F5 by protection, diode, normally closed some BSHJ-2 of locking closing relay accesses closing circuit, outside closing pulse closes a floodgate into F6 by outside, normally closed some BSHJ-2 of locking closing relay accesses closing circuit.
Described trip(ping) circuit comprises breaking coil TQ, tripping operation guard relay TBJ and tripping operation pulse incoming end F7, F8, wherein F7 be outside trip into, F8 is that trip protection enters, the coil of described breaking coil TQ and tripping operation guard relay TBJ, normal battle is connected to the positive F1 of operating power after TBJ-1 series connection and operating power is born between F22, outside tripping operation pulse is tripped into F7 by outside, diode, normally closed some BSTJ-2 of locking tripping relay accesses trip(ping) circuit, trip protection pulse enters F8 by trip protection, diode, normally closed some BSTJ-2 of locking tripping relay accesses trip(ping) circuit.
Described jumping position monitoring circuit comprises two and jumps position supervisory relay TW1J, TW2J and jumping position pilot lamp TWD, divider resistance, operating power positive pole F1 is connected to and TWJ negative terminal goes out between F3 after jumping the coil of position supervisory relay and resistant series, jump position pilot lamp TWD and be parallel to divider resistance two ends, positioning monitoring circuit also accesses closing circuit by diode.Described co-bit monitoring circuit is connected to operating power positive pole F1 after comprising co-bit supervisory relay HWJ, divider resistance and co-bit pilot lamp HWD, co-bit supervisory relay HWJ and resistor coupled in parallel and breaking coil enters between F4, and co-bit pilot lamp is parallel to divider resistance two ends.
After described conjunction, monitoring circuit comprises conjunction rear position relay HH1J, HH2J and conjunction rear indicator light HHD, divider resistance, after closing, close a floodgate in connection terminal outside F6, outside of the coil tandem of position relay HH1J, HH2J is tripped after F7, after closing normal battle of position relay HH1J in parallel with divider resistance after be connected to the positive F1 of connection terminal operating power and operating power is born between F22, close rear indicator light HHD and be connected in parallel on divider resistance two ends.Coil obtains electric rear its and often makes war closed, closes rear monitoring circuit and connects, close rear indicator light HHD bright.
Described locked loop comprises locking tripping relay BSTJ, locking closing relay BSHJ, the coil of locking tripping relay BSTJ is connected to trip F9 and operating power of connection terminal locking and bears between F22, the coil of locking closing relay BSHJ is connected to close a floodgate F10 and operating power of connection terminal locking and bears between F22, and connection terminal operates total locking and enters before F11 is connected on the coil of locking tripping relay, locking closing relay by two diodes in parallel.The normally closed some BSHJ-2 of locking closing relay BSHJ is connected on close a floodgate F5, outside of protection and closes a floodgate after F6, and the normally closed some BSTJ-2 of locking tripping relay BSTJ is connected to outside and trips after F7, trip protection enter F8.When after F9 energising, locking tripping relay BSTJ coil obtains electric, its normally closed disconnection, and tripping operation pulse cannot access trip(ping) circuit, trip(ping) circuit locking.In like manner, when after F10 energising, locking closing relay BSHJ coil obtains electric, and its normally closed disconnection, closing pulse cannot access closing circuit, closing locking.When after F11 energising, the coil of locking tripping relay BSTJ, locking closing relay BSHJ all obtains electric, and its normally closed point all disconnects, and tripping operation, closing pulse cannot access tripping operation, closing circuit, and tripping operation, closing circuit are all blocked.
The principle of work of former isolating switch breaker tripping and closing control loop is: when isolating switch closes a floodgate on the spot, and closing circuit of circuit breaker is connected, and starts breaker closing coil HQ.Meanwhile, combined floodgate guard relay HBJ action, it often makes war closed, makes closing pulse be able to self-sustaining, until isolating switch completes combined floodgate.After breaker closing success, be connected on the isolating switch normally closed auxiliary contact before HQ and open, cut off closing circuit, HBJ dead electricity returns.Circuit breaker position supervisory relay TWJ is connected to closing circuit, this loop is gone here and there before closing coil HQ isolating switch normally closed auxiliary contact, when isolating switch is when dividing position, its normally closed auxiliary contact closes, TWJ coil is charged, green LED lamp is bright, instruction circuit breaker position is a point position, reach the object monitoring closing circuit of circuit breaker integrity (that in this loop, the most easily damaged original paper stands in the breach is closing coil HQ simultaneously, therefore also can be understood as and monitor that whether the operating mode of closing coil HQ is normal), but the integrity in circuit breaker trip loop can not be monitored simultaneously.Namely can not accomplish to monitor the full working scope of tripping coil.
For the defect of typical isolating switch breaker tripping and closing control loop, innovative point of the present utility model is: the two ends shunt tripping coil full working scope monitoring circuit LOOP2 of breaking coil, the two ends of closing coil are parallel with closing coil full working scope monitoring circuit LOOP1, and described breaker tripping and closing coil full working scope monitoring circuit carries out full working scope real time monitoring to breaker tripping and closing coil respectively.
Described closing coil full working scope monitoring circuit LOOP1 comprise be cascaded battery E1, reometer A1, current-limiting resistance R1 and two series aiding connection diode D1, D2, the positive pole of diode is connected with the positive pole of battery E1; Described breaking coil full working scope monitoring circuit LOOP2 comprise be cascaded battery E2, reometer A2, current-limiting resistance R2 and two series aiding connection diode D3, D4, the positive pole of diode is connected with the positive pole of battery E2.The auxiliary contact of described reometer A1 and reometer A2 all with oriented control background transfer tripping coil abnormal signal.When there is work condition abnormality in closing coil HQ or breaking coil TQ, corresponding reometer number of degrees generation significant change, and then drive its auxiliary contact action, above send remote signalling to conjugate signal, thus realize the real time monitoring to isolating switch tripping coil full working scope.
In the present embodiment, E1, E2 are single-unit 12V accumulator, and A1, A2 are the DC ammeter of band auxiliary contact.
Because current isolating switch tripping coil mostly is current mode, its resistance less (modal value is 50 ~ 200 Ω), therefore, need in the loop to seal in a current-limiting resistance, and match corresponding resistance, thus guarantee that the reading of DC ammeter meter when tripping coil operating mode is normal falls within 1/3 ~ 1/2 interval of this table range.The diode of two series connection is mainly in order to prevent isolating switch this loop when carrying out normal breaking-closing operating from shunting the electric current flowing through tripping coil HQ and TQ.The extension line of DC ammeter meter A auxiliary contact can be connected to the idle of protective device and open ingress, send remote signalling to conjugate signal on when at tripping coil work condition abnormality.
Described combined floodgate full working scope monitoring circuit LOOP1, tripping operation full working scope monitoring circuit LOOP2 are two independent loops, without contacting and not interfereing with each other between two loops, and adding of new monitoring circuit can not have an impact to the work in original typical isolating switch breaker tripping and closing control loop and circuit breaker position instruction loop.
No matter the real time position of isolating switch is in co-bit or point position, as long as tripping coil exception does not occur, the registration of DC ammeter is all stabilized in a certain scope.When the operating mode of closing coil occurs abnormal, will there is significant change in the reading of A1, and meanwhile, backstage will receive the remote signals of this interval of prompting breaker closing coil HQ work condition abnormality; In like manner, if now the operating mode of switching winding occurs abnormal, will there is significant change in the reading of A2, and meanwhile, backstage will receive the remote signals of this interval of prompting breaker open operation coil TQ work condition abnormality.Realize the full working scope real time monitoring to isolating switch tripping coil.
It should be noted that in transformation process to original secondary circuit that two single-row 12V accumulator E1 and E2 should independently to respective loop power supply.For ensureing the loop connection reliability of current-limiting resistance R1 and R2 and two series aiding connection diode D1, D2 and D3, D4, preferably adopt the mode printing simple and easy pcb board.The position conveniently checked when maintenance, operation maintenance personnel make an inspection tour equipment is preferably designed in the position of DC ammeter meter A1 and A2 with auxiliary contact; After auxiliary contact Circuit Retrofit, should should define in time in storehouse, backstage, guarantee that its function can realize smoothly.
Claims (5)
1. isolating switch tripping coil full working scope monitoring circuit, comprise trip(ping) circuit, closing circuit, described closing circuit comprises closing coil HQ, combined floodgate guard relay HBJ and closing pulse incoming end, the coil of described closing coil HQ and combined floodgate guard relay, normal battle HBJ-1 be connected to the positive F1 of operating power after connect and operating power is born between F22, closing pulse accesses closing circuit by closing pulse incoming end; Described trip(ping) circuit comprises breaking coil TQ, tripping operation guard relay TBJ and tripping operation pulse incoming end, the coil of described breaking coil TQ and tripping operation guard relay, normal battle TBJ-1 be connected to the positive F1 of operating power after connect and operating power is born between F22, tripping operation pulse accesses trip(ping) circuit by tripping operation pulse incoming end;
It is characterized in that: the two ends of closing coil HQ are parallel with closing coil full working scope monitoring circuit LOOP1, the two ends of breaking coil TQ are parallel with breaking coil full working scope monitoring circuit LOOP2, and described breaker tripping and closing coil full working scope monitoring circuit carries out full working scope real time monitoring to breaker tripping and closing coil respectively.
2. isolating switch tripping coil full working scope monitoring circuit according to claim 1, it is characterized in that: described closing coil full working scope monitoring circuit LOOP1 comprises the diode of battery E1, reometer A1, current-limiting resistance R1 and one or more series aiding connections be cascaded, and the positive pole of diode is connected with the positive pole of battery E1; Described breaking coil full working scope monitoring circuit LOOP2 comprises the diode of battery E2, reometer A2, current-limiting resistance R2 and one or more series aiding connections be cascaded, and the positive pole of diode is connected with the positive pole of battery E2.
3. isolating switch tripping coil full working scope monitoring circuit according to claim 2, is characterized in that: described reometer A1 and reometer A2 is equipped with the auxiliary contact to controlling background transfer tripping coil abnormal signal.
4. isolating switch tripping coil full working scope monitoring circuit according to claim 3, is characterized in that: described current-limiting resistance R1, R2 make reometer A1, A2 reading when tripping coil operating mode is normal fall within the 1/3-1/2 interval of its range respectively.
5. isolating switch tripping coil full working scope monitoring circuit according to claim 2, it is characterized in that: diode D1, D2 of having two series aiding connections in described closing coil full working scope monitoring circuit LOOP1, in described breaking coil full working scope monitoring circuit LOOP2, have diode D3, D4 of two series aiding connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520198659.2U CN204536498U (en) | 2015-04-03 | 2015-04-03 | Isolating switch tripping coil full working scope monitoring circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520198659.2U CN204536498U (en) | 2015-04-03 | 2015-04-03 | Isolating switch tripping coil full working scope monitoring circuit |
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| CN204536498U true CN204536498U (en) | 2015-08-05 |
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| CN201520198659.2U Expired - Fee Related CN204536498U (en) | 2015-04-03 | 2015-04-03 | Isolating switch tripping coil full working scope monitoring circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793131A (en) * | 2015-04-03 | 2015-07-22 | 国网山东省电力公司东营供电公司 | Full working condition monitoring circuit for tripping coil and closing coil of circuit breaker |
| CN107086667A (en) * | 2017-06-08 | 2017-08-22 | 国电大渡河流域水电开发有限公司 | A kind of outlet breaker closing circuit structure and its method of work |
-
2015
- 2015-04-03 CN CN201520198659.2U patent/CN204536498U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793131A (en) * | 2015-04-03 | 2015-07-22 | 国网山东省电力公司东营供电公司 | Full working condition monitoring circuit for tripping coil and closing coil of circuit breaker |
| CN107086667A (en) * | 2017-06-08 | 2017-08-22 | 国电大渡河流域水电开发有限公司 | A kind of outlet breaker closing circuit structure and its method of work |
| CN107086667B (en) * | 2017-06-08 | 2023-08-04 | 国能大渡河流域水电开发有限公司 | Switching-on loop structure of outlet circuit breaker and working method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |