CN105811290A - Electrical interlocking circuit for high-voltage switchgear - Google Patents
Electrical interlocking circuit for high-voltage switchgear Download PDFInfo
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- CN105811290A CN105811290A CN201610341449.3A CN201610341449A CN105811290A CN 105811290 A CN105811290 A CN 105811290A CN 201610341449 A CN201610341449 A CN 201610341449A CN 105811290 A CN105811290 A CN 105811290A
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- Prior art keywords
- trolley
- circuit breaker
- testing position
- latching electromagnet
- power supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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Abstract
The invention discloses an electrical interlocking circuit for high-voltage switchgear. The electrical interlocking circuit comprises an electrical interlocking circuit of a wire-inlet circuit breaker cabinet, an electrical interlocking circuit of a feeder line circuit breaker cabinet, an electrical interlocking circuit of a buscouple circuit breaker cabinet, an electrical interlocking circuit of a buscouple isolation cabinet, and an electrical interlocking circuit of a voltage transformer cabinet. The electrical interlocking circuit is reasonable in design, simple in structure, safe and reliable, capable of perfecting the electrical interlocking circuit of the switchgear, and capable of satisfying requirements of "five preventions" which are illustrated in the specifications so as to ensure personal safety.
Description
Technical field
The present invention relates to high-tension switch gear technical field, be related specifically to a kind of high-tension switch gear electric interlocking loop.
Background technology
The interlocking of high-tension switch cabinet is to ensure that power network safe operation, guarantee equipment and personal safety, prevent the important measures of maloperation.This is also made explicit provisions by GB3906 " 3-35kV ac metal closing switch gear ".Generally interlocking is described as: prevent from dividing by mistake, closing chopper；Prevent on-load from dividing, close isolation switch；Prevent band cable address (conjunction) earth lead (earthed switch)；Prevent line with ground (switch) from closing chopper, on-load switch: to prevent mistakenly entering charged chamber, above-mentioned five contents preventing electric misoperation, be called for short " five prevent "." five prevent " device generally can be divided into machinery, electric and comprehensive three classes.
In power system, 10kV voltage switchgear is widely used at present, although voltage switchgear itself possesses certain mechanical anti-misoperation function, but functionally, five anti-functions also cannot be fully achieved, still have the interlocking especially electric interlock still imperfection of many high-tension switch cabinets, still can not being fully achieved realization " five prevent " requirement, bring in potential safety hazard secondary circuit to operator, the anti-jump loop of chopper mainly adopts breaker mechanism anti-jump.And there is certain design defect in the anti-jump loop being used for primary cut-out in prior art; particularly under coordinating with microcomputer protective relay device; easily there is parasitic loop problem in anti-jump loop; even if anti-jump relay tip still can not reset after failture evacuation; cannot again close a floodgate after causing chopper tripping, thus bringing bigger inconvenience to user.
But for the deficiencies in the prior art, developer is necessary to develop a kind of reasonable in design, simple in construction, safe and reliable, the perfect electric interlocking loop of switch cubicle, it is capable of " five prevent " requirement, it is ensured that the high-tension switch gear electric interlocking loop of the person and equipment safety.
Summary of the invention
For solving prior art Problems existing, the object of the invention provides a kind of reasonable in design, simple in construction, safe and reliable, the perfect electric interlocking loop of switch cubicle, ensure that the person and the high-tension switch gear electric interlocking loop of equipment safety.
For solving above technical problem, the present invention realizes by the following technical solutions:
A kind of high-tension switch gear electric interlocking loop, including lead-in circuit breaker cabinet electric interlocking loop, feeder breaker cabinet electric interlocking loop, the electric interlocking loop of bus cabinet, mother isolation cabinet electric interlocking loop and voltage transformer cabinet electric interlocking loop, it is characterized in that
Described lead-in circuit breaker cabinet electric interlocking loop includes the first back door locked loop, the first closing locking circuit and the first circuit breaker trolley locked loop；Described first back door locked loop includes the first back door latching electromagnet, first high-voltage charge display device locking normally-closed contact and the first circuit breaker trolley testing position, described first end of the first circuit breaker trolley testing position is connected with the positive pole of locking power supply, second end of described first circuit breaker trolley testing position and the first end of the first high-voltage charge display device locking normally-closed contact are connected, described second end of the first high-voltage charge display device locking normally-closed contact and the first end of the first back door latching electromagnet are connected, described second end of the first back door latching electromagnet is connected with the negative pole of locking power supply；Described first closing locking circuit includes the first breaker closing latching electromagnet and the second circuit breaker trolley testing position, described first end of the second circuit breaker trolley testing position is connected with the positive pole of locking power supply, second end of described second circuit breaker trolley testing position and the first end of the first breaker closing latching electromagnet are connected, and described second end of the first breaker closing latching electromagnet is connected with the negative pole of locking power supply；nullDescribed first circuit breaker trolley locked loop includes the first circuit breaker trolley operating position、First circuit breaker trolley latching electromagnet、First grounding trolley testing position、Travel switch and switch test position, high pressure side joint ground is gated after first，Described high pressure side joint ground the first end of switch test position is connected with the positive pole of locking power supply，The first end gating travel switch after second end and first of switch test position, described high pressure side joint ground is connected，First end of the second end and the first grounding trolley testing position that gate travel switch after described first is connected，Second end of described first grounding trolley testing position is connected with the first end of the first end of the first circuit breaker trolley operating position and the first circuit breaker trolley latching electromagnet respectively，Second end of described first circuit breaker trolley operating position and the second end of the second circuit breaker trolley testing position are connected，Described second end of the first circuit breaker trolley latching electromagnet is connected with the negative pole of locking power supply；
Described feeder breaker cabinet electric interlocking loop includes the second back door locked loop, the second closing locking circuit, earthed switch locked loop and the second circuit breaker trolley locked loop；Described second back door locked loop includes the second back door latching electromagnet, second high-voltage charge display device locking normally-closed contact, 3rd circuit breaker trolley testing position, described first end of the 3rd circuit breaker trolley testing position is connected with the positive pole of locking power supply, second end of described 3rd circuit breaker trolley testing position and the first end of the second high-voltage charge display device locking normally-closed contact are connected, described second end of the second high-voltage charge display device locking normally-closed contact and the first end of the second back door latching electromagnet are connected, described second end of the second back door latching electromagnet is connected with the negative pole of locking power supply；Described earthed switch locked loop includes earthed switch latching electromagnet, first end of described earthed switch latching electromagnet and the second end of the second high-voltage charge display device locking normally-closed contact are connected, and the second end of described second high-voltage charge display device locking normally-closed contact is connected with the negative pole of locking power supply；Described second closing locking circuit includes the second breaker closing latching electromagnet and the 4th circuit breaker trolley testing position, described first end of the 4th circuit breaker trolley testing position is connected with the positive pole of locking power supply, second end of described 4th circuit breaker trolley testing position and the first end of the second breaker closing latching electromagnet are connected, and described second end of the second breaker closing latching electromagnet is connected with the negative pole of locking power supply；Described second circuit breaker trolley locked loop includes the second circuit breaker trolley operating position, second circuit breaker trolley latching electromagnet, travel switch is gated after second grounding trolley testing position and second, the positive pole of the first end and locking power supply that gate travel switch after described second is connected, first end of the second end and the second grounding trolley testing position that gate travel switch after described second is connected, second end of described second grounding trolley testing position is connected with the first end of the first end of the second circuit breaker trolley operating position and the second circuit breaker trolley latching electromagnet respectively, described second end of the second circuit breaker trolley operating position and the second end of the 4th circuit breaker trolley testing position are connected, described second end of the second circuit breaker trolley latching electromagnet is connected with the negative pole of locking power supply；
The electric interlocking loop of described bus cabinet includes the 3rd back door locked loop, the 3rd closing locking circuit and the 3rd circuit breaker trolley locked loop；Described 3rd back door locked loop includes the 3rd back door latching electromagnet, 3rd high-voltage charge display device locking normally-closed contact, 4th circuit breaker trolley testing position and the first mother isolation trolley testing position, first end of described first mother isolation trolley testing position is connected with the positive pole of locking power supply, described second end of the first mother isolation trolley testing position and the first end of the 4th circuit breaker trolley testing position are connected, second end of described 4th circuit breaker trolley testing position and the first end of the 3rd high-voltage charge display device locking normally-closed contact are connected, described second end of the 3rd high-voltage charge display device locking normally-closed contact and the first end of the 3rd back door latching electromagnet are connected, described second end of the 3rd back door latching electromagnet is connected with the negative pole of locking power supply；Described 3rd closing locking circuit includes the 3rd breaker closing latching electromagnet and the 5th circuit breaker trolley testing position, described first end of the 5th circuit breaker trolley testing position is connected with the positive pole of locking power supply, described second end of the 5th circuit breaker trolley testing position and the first end of the 3rd breaker closing latching electromagnet are connected, and described second end of the 3rd breaker closing latching electromagnet is connected with the negative pole of locking power supply；nullDescribed 3rd circuit breaker trolley locked loop includes the 3rd and connects circuit breaker trolley operating position、3rd circuit breaker trolley latching electromagnet、Travel switch is gated after 3rd、Gate travel switch after mother isolation cabinet、Second mother isolation trolley testing position、Second female grounding trolley and first female grounding trolley，Described first female first end of grounding trolley is connected with the positive pole of locking power supply，Second end of described first female grounding trolley and the first end of second female grounding trolley are connected，Described second female second end of grounding trolley and the first end of the second mother isolation trolley testing position are connected，Second end of described second mother isolation trolley testing position is isolated, with mother, the first end gating travel switch after cabinet and is connected，The first end gating travel switch after gating second end and the 3rd of travel switch after described mother isolation cabinet is connected，The second end gating travel switch after described 3rd is connected with the first end of the 3rd the first end connecing circuit breaker trolley operating position and the 3rd circuit breaker trolley latching electromagnet respectively，Second end of the described 3rd the second end and the 5th circuit breaker trolley testing position connecing circuit breaker trolley operating position is connected，Described second end of the 3rd circuit breaker trolley latching electromagnet is connected with the positive pole of locking power supply；
Described mother isolation cabinet electric interlocking loop includes the 4th back door locked loop and mother isolation trolley locked loop；Described 4th back door locked loop includes the 4th back door latching electromagnet, 4th high-voltage charge display device locking normally-closed contact, 3rd mother isolation trolley testing position and the first bus dolly testing position, first end of described first bus dolly testing position is connected with the positive pole of locking power supply, described second end of the first bus dolly testing position and the first end of the 3rd mother isolation trolley testing position are connected, described second end of the 3rd mother isolation trolley testing position and the first end of the 4th high-voltage charge display device locking normally-closed contact are connected, described second end of the 4th high-voltage charge display device locking normally-closed contact and the first end of the 4th back door latching electromagnet are connected, described second end of the 4th back door latching electromagnet is connected with the negative pole of locking power supply；Described mother isolation trolley locked loop includes mother isolation trolley latching electromagnet, travel switch is gated after gating travel switch and bus cabinet after 4th, second end of the first end and the first bus dolly testing position that gate travel switch after described bus cabinet is connected, the first end gating travel switch after gating second end and the 4th of travel switch after described bus cabinet is connected, first end of the second end and mother isolation trolley latching electromagnet that gate travel switch after the described 4th is connected, described second end of mother isolation trolley latching electromagnet is connected with the negative pole of locking power supply；
Described voltage transformer cabinet electric interlocking loop includes grounding trolley locked loop, the 5th back door locked loop and fuse dolly locked loop；Described grounding trolley locked loop includes grounding trolley latching electromagnet, lead-in circuit breaker dolly testing position and the second bus dolly testing position, first end of described second bus dolly testing position is connected with the positive pole of locking power supply, described second end of the second bus dolly testing position is connected with the first end of lead-in circuit breaker dolly testing position, described second end of lead-in circuit breaker dolly testing position is connected with the first end of grounding trolley latching electromagnet, second end of described grounding trolley latching electromagnet is connected with the negative pole of locking power supply；Described 5th back door locked loop includes the 5th back door latching electromagnet, 5th high-voltage charge display device locking normally-closed contact and fuse dolly testing position, described first end of fuse dolly testing position is connected with the positive pole of locking power supply, second end of described fuse dolly testing position and the first end of the 5th high-voltage charge display device locking normally-closed contact are connected, described second end of the 5th high-voltage charge display device locking normally-closed contact and the first end of the 5th back door latching electromagnet are connected, described second end of the 5th back door latching electromagnet is connected with the negative pole of locking power supply；Described fuse dolly locked loop gates travel switch after including fuse dolly latching electromagnet RD-YO and the five, the positive pole of the first end and locking power supply that gate travel switch after the described 5th is connected, first end of the second end and fuse dolly latching electromagnet RD-YO that gate travel switch after the described 5th is connected, and second end of described fuse dolly latching electromagnet RD-YO is connected with the negative pole of locking power supply.
Compared with prior art, the present invention adopts the loop of above structure, it is possible to improve the electric interlocking loop of switch cubicle, it is possible to realize " five prevent " requirement, it is ensured that the person, additionally so that it is the loop global design of structure rationally, simple in construction, safe and reliable.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the lead-in circuit breaker cabinet electric interlocking loop schematic diagram of the present invention.
Fig. 2 is the feeder breaker cabinet electric interlocking loop schematic diagram of the present invention.
Fig. 3 is the electric interlocking loop schematic diagram of the bus cabinet of the present invention.
Fig. 4 is the mother isolation cabinet electric interlocking loop schematic diagram of the present invention.
Fig. 5 is the voltage transformer cabinet electric interlocking loop schematic diagram of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, the present invention is expanded on further.
A kind of high-tension switch gear electric interlocking loop, including lead-in circuit breaker cabinet electric interlocking loop, feeder breaker cabinet electric interlocking loop, the electric interlocking loop of bus cabinet, mother isolation cabinet electric interlocking loop and voltage transformer cabinet electric interlocking loop.
With reference to shown in Fig. 1, lead-in circuit breaker cabinet electric interlocking loop includes the first back door locked loop, the first closing locking circuit and the first circuit breaker trolley locked loop.
First back door locked loop includes the first back door latching electromagnet HM-DCS, first high-voltage charge display device locking normally-closed contact DXK and the first circuit breaker trolley testing position DL-SWK, first end of the first circuit breaker trolley testing position DL-SWK is connected with the positive pole+BSM of locking power supply, second end of the first circuit breaker trolley testing position DL-SWK and first end of the first high-voltage charge display device locking normally-closed contact DXK are connected, second end of the first high-voltage charge display device locking normally-closed contact DXK and first end of the first back door latching electromagnet HM-DCS are connected, second end of the first back door latching electromagnet HM-DCS is connected with the negative pole-BSM of locking power supply.
First closing locking circuit includes the first breaker closing latching electromagnet DL-Y1 and the second circuit breaker trolley testing position DL-SWK, first end of the second circuit breaker trolley testing position DL-SWK is connected with the positive pole+BSM of locking power supply, second end of the second circuit breaker trolley testing position DL-SWK and first end of the first breaker closing latching electromagnet DL-Y1 are connected, and second end of the first breaker closing latching electromagnet DL-Y1 is connected with the negative pole-BSM of locking power supply.
nullFirst circuit breaker trolley locked loop includes the first circuit breaker trolley operating position DL-GWK、First circuit breaker trolley latching electromagnet DL-YO、First grounding trolley testing position JD-SWK、Travel switch HMK and high pressure side joint ground switch test position GG-SWK is gated after first，High pressure side joint ground first end of switch test position GG-SWK is connected with the positive pole+BSM of locking power supply，After second end and first of high pressure side joint ground switch test position GG-SWK, first end of gate travel switch HMK is connected，First end of the second end and the first grounding trolley testing position JD-SWK that gate travel switch HMK after first is connected，Second end of the first grounding trolley testing position JD-SWK is connected with the first end of first end of the first circuit breaker trolley operating position DL-GWK and the first circuit breaker trolley latching electromagnet DL-YO respectively，Second end of the first circuit breaker trolley operating position DL-GWK and second end of the second circuit breaker trolley testing position DL-SWK are connected，Second end of the first circuit breaker trolley latching electromagnet DL-YO is connected with the negative pole-BSM of locking power supply.
With reference to shown in Fig. 2, feeder breaker cabinet electric interlocking loop includes the second back door locked loop, the second closing locking circuit, earthed switch locked loop and the second circuit breaker trolley locked loop.
Second back door locked loop includes the second back door latching electromagnet HM-DCS, second high-voltage charge display device locking normally-closed contact DXK, 3rd circuit breaker trolley testing position DL-SWK, first end of the 3rd circuit breaker trolley testing position DL-SWK is connected with the positive pole+BSM of locking power supply, second end of the 3rd circuit breaker trolley testing position DL-SWK and first end of the second high-voltage charge display device locking normally-closed contact DXK are connected, second end of the second high-voltage charge display device locking normally-closed contact DXK and first end of the second back door latching electromagnet HM-DCS are connected, second end of the second back door latching electromagnet HM-DCS is connected with the negative pole-BSM of locking power supply.
Earthed switch locked loop includes earthed switch latching electromagnet DG-DCS, first end of earthed switch latching electromagnet DG-DCS and second end of the second high-voltage charge display device locking normally-closed contact DXK are connected, and second end of the second high-voltage charge display device locking normally-closed contact DXK is connected with the negative pole-BSM of locking power supply.
Second closing locking circuit includes the second breaker closing latching electromagnet DL-Y1 and the four circuit breaker trolley testing position DL-SWK, first end of the 4th circuit breaker trolley testing position DL-SWK is connected with the positive pole+BSM of locking power supply, second end of the 4th circuit breaker trolley testing position DL-SWK and first end of the second breaker closing latching electromagnet DL-Y1 are connected, and second end of the second breaker closing latching electromagnet DL-Y1 is connected with the negative pole-BSM of locking power supply.
nullSecond circuit breaker trolley locked loop includes the second circuit breaker trolley operating position DL-GWK、Second circuit breaker trolley latching electromagnet DL-YO、Travel switch HMK is gated after second grounding trolley testing position JD-SWK and the second，The first end gating travel switch HMK after second is connected with the positive pole+BSM of locking power supply，First end of the second end and the second grounding trolley testing position JD-SWK that gate travel switch HMK after second is connected，Second end of the second grounding trolley testing position JD-SWK is connected with the first end of first end of the second circuit breaker trolley operating position DL-GWK and the second circuit breaker trolley latching electromagnet DL-YO respectively，Second end of the second circuit breaker trolley operating position DL-GWK and second end of the 4th circuit breaker trolley testing position DL-SWK are connected，Second end of the second circuit breaker trolley latching electromagnet DL-YO is connected with the negative pole-BSM of locking power supply.
With reference to shown in Fig. 3, the electric interlocking loop of bus cabinet includes the 3rd back door locked loop, the 3rd closing locking circuit and the 3rd circuit breaker trolley locked loop.
null3rd back door locked loop includes the 3rd back door latching electromagnet HM-DCS、3rd high-voltage charge display device locking normally-closed contact DXK、4th circuit breaker trolley testing position DL-SWK and the first mother isolation trolley testing position GL-SWK，First end of the first mother isolation trolley testing position GL-SWK is connected with the positive pole+BSM of locking power supply，Second end of the first mother isolation trolley testing position GL-SWK and first end of the 4th circuit breaker trolley testing position DL-SWK are connected，Second end of the 4th circuit breaker trolley testing position DL-SWK and first end of the 3rd high-voltage charge display device locking normally-closed contact DXK are connected，Second end of the 3rd high-voltage charge display device locking normally-closed contact DXK and first end of the 3rd back door latching electromagnet HM-DCS are connected，Second end of the 3rd back door latching electromagnet HM-DCS is connected with the negative pole-BSM of locking power supply.
3rd closing locking circuit includes the 3rd breaker closing latching electromagnet DL-Y1 and the five circuit breaker trolley testing position DL-SWK, first end of the 5th circuit breaker trolley testing position DL-SWK is connected with the positive pole+BSM of locking power supply, second end of the 5th circuit breaker trolley testing position DL-SWK and first end of the 3rd breaker closing latching electromagnet DL-Y1 are connected, and second end of the 3rd breaker closing latching electromagnet DL-Y1 is connected with the negative pole-BSM of locking power supply.
null3rd circuit breaker trolley locked loop includes the 3rd and meets circuit breaker trolley operating position DL-GWK、3rd circuit breaker trolley latching electromagnet DL-YO、Travel switch HMK is gated after 3rd、Gate travel switch HMK1 after mother isolation cabinet、Second mother isolation trolley testing position GL-SWK、The second female grounding trolley JD-SWK1 of female grounding trolley JD-SWK2 and the first，First female first end of grounding trolley JD-SWK1 is connected with the positive pole+BSM of locking power supply，Second end of first female grounding trolley JD-SWK1 and first end of second female grounding trolley JD-SWK2 are connected，Second female second end of grounding trolley JD-SWK2 and first end of the second mother isolation trolley testing position GL-SWK are connected，Second end of the second mother isolation trolley testing position GL-SWK is isolated first end of gate travel switch HMK1 after cabinet and is connected with mother，After mother isolation cabinet, after second end and the 3rd of gate travel switch HMK1, first end of gate travel switch HMK is connected，The second end gating travel switch HMK after 3rd is connected with the first end of the 3rd the first end meeting circuit breaker trolley operating position DL-GWK and the 3rd circuit breaker trolley latching electromagnet DL-YO respectively，Second end of the 3rd the second end meeting circuit breaker trolley operating position DL-GWK and the 5th circuit breaker trolley testing position DL-SWK is connected，Second end of the 3rd circuit breaker trolley latching electromagnet DL-YO is connected with the positive pole+BSM of locking power supply.
With reference to shown in Fig. 4, mother isolation cabinet electric interlocking loop includes the 4th back door locked loop and mother isolation trolley locked loop.
null4th back door locked loop includes the 4th back door latching electromagnet HM-DCS、4th high-voltage charge display device locking normally-closed contact DXK、3rd mother isolation trolley testing position GL-SWK and the first bus dolly testing position DL-SWK1，First end of the first bus dolly testing position DL-SWK1 is connected with the positive pole+BSM of locking power supply，Second end of the first bus dolly testing position DL-SWK1 and first end of the 3rd mother isolation trolley testing position GL-SWK are connected，Second end of the 3rd mother isolation trolley testing position GL-SWK and first end of the 4th high-voltage charge display device locking normally-closed contact DXK are connected，Second end of the 4th high-voltage charge display device locking normally-closed contact DXK and first end of the 4th back door latching electromagnet HM-DCS are connected，Second end of the 4th back door latching electromagnet HM-DCS is connected with the negative pole-BSM of locking power supply.
Mother isolation trolley locked loop includes mother isolation trolley latching electromagnet GL-YO, travel switch HMK2 is gated after gating travel switch HMK and bus cabinet after 4th, second end of the first end and the first bus dolly testing position DL-SWK1 that gate travel switch HMK2 after bus cabinet is connected, after gating second end and the 4th of travel switch HMK2 after bus cabinet, first end of gate travel switch HMK is connected, the second end gating travel switch HMK after 4th is connected with first end of mother isolation trolley latching electromagnet GL-YO, second end of mother isolation trolley latching electromagnet GL-YO is connected with the negative pole-BSM of locking power supply.
With reference to shown in Fig. 5, voltage transformer cabinet electric interlocking loop includes grounding trolley locked loop, the 5th back door locked loop and fuse dolly locked loop.
Grounding trolley locked loop includes grounding trolley latching electromagnet JD-YO, lead-in circuit breaker dolly testing position DL-SWK2 and the second bus dolly testing position DL-SWK1, first end of the second bus dolly testing position DL-SWK1 is connected with the positive pole+BSM of locking power supply, second end of the second bus dolly testing position DL-SWK1 is connected with first end of lead-in circuit breaker dolly testing position DL-SWK2, second end of lead-in circuit breaker dolly testing position DL-SWK2 is connected with first end of grounding trolley latching electromagnet JD-YO, second end of grounding trolley latching electromagnet JD-YO is connected with the negative pole-BSM of locking power supply.
5th back door locked loop includes the 5th back door latching electromagnet HM-DCS, 5th high-voltage charge display device locking normally-closed contact DXK and fuse dolly testing position RD-SWK, first end of fuse dolly testing position RD-SWK is connected with the positive pole+BSM of locking power supply, second end of fuse dolly testing position RD-SWK and first end of the 5th high-voltage charge display device locking normally-closed contact DXK are connected, second end of the 5th high-voltage charge display device locking normally-closed contact DXK and first end of the 5th back door latching electromagnet HM-DCS are connected, second end of the 5th back door latching electromagnet HM-DCS is connected with the negative pole-BSM of locking power supply.
Fuse dolly locked loop gates travel switch HMK after including fuse dolly latching electromagnet RD-YO and the five, the first end gating travel switch HMK after 5th is connected with the positive pole+BSM of locking power supply, the second end gating travel switch HMK after 5th is connected with first end of fuse dolly latching electromagnet RD-YO, and second end of fuse dolly latching electromagnet RD-YO is connected with the negative pole-BSM of locking power supply.
The present invention adopts the loop of above structure in sum, it is possible to improve the electric interlocking loop of switch cubicle, it is possible to realize " five prevent " requirement, it is ensured that the person, additionally so that it is the loop global design of structure rationally, simple in construction, safe and reliable.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (1)
1. a high-tension switch gear electric interlocking loop, including lead-in circuit breaker cabinet electric interlocking loop, feeder breaker cabinet electric interlocking loop, the electric interlocking loop of bus cabinet, mother isolation cabinet electric interlocking loop and voltage transformer cabinet electric interlocking loop, it is characterized in that
Described lead-in circuit breaker cabinet electric interlocking loop includes the first back door locked loop, the first closing locking circuit and the first circuit breaker trolley locked loop；Described first back door locked loop includes the first back door latching electromagnet, first high-voltage charge display device locking normally-closed contact and the first circuit breaker trolley testing position, described first end of the first circuit breaker trolley testing position is connected with the positive pole of locking power supply, second end of described first circuit breaker trolley testing position and the first end of the first high-voltage charge display device locking normally-closed contact are connected, described second end of the first high-voltage charge display device locking normally-closed contact and the first end of the first back door latching electromagnet are connected, described second end of the first back door latching electromagnet is connected with the negative pole of locking power supply；Described first closing locking circuit includes the first breaker closing latching electromagnet and the second circuit breaker trolley testing position, described first end of the second circuit breaker trolley testing position is connected with the positive pole of locking power supply, second end of described second circuit breaker trolley testing position and the first end of the first breaker closing latching electromagnet are connected, and described second end of the first breaker closing latching electromagnet is connected with the negative pole of locking power supply；nullDescribed first circuit breaker trolley locked loop includes the first circuit breaker trolley operating position、First circuit breaker trolley latching electromagnet、First grounding trolley testing position、Travel switch and switch test position, high pressure side joint ground is gated after first，Described high pressure side joint ground the first end of switch test position is connected with the positive pole of locking power supply，The first end gating travel switch after second end and first of switch test position, described high pressure side joint ground is connected，First end of the second end and the first grounding trolley testing position that gate travel switch after described first is connected，Second end of described first grounding trolley testing position is connected with the first end of the first end of the first circuit breaker trolley operating position and the first circuit breaker trolley latching electromagnet respectively，Second end of described first circuit breaker trolley operating position and the second end of the second circuit breaker trolley testing position are connected，Described second end of the first circuit breaker trolley latching electromagnet is connected with the negative pole of locking power supply；
Described feeder breaker cabinet electric interlocking loop includes the second back door locked loop, the second closing locking circuit, earthed switch locked loop and the second circuit breaker trolley locked loop；Described second back door locked loop includes the second back door latching electromagnet, second high-voltage charge display device locking normally-closed contact, 3rd circuit breaker trolley testing position, described first end of the 3rd circuit breaker trolley testing position is connected with the positive pole of locking power supply, second end of described 3rd circuit breaker trolley testing position and the first end of the second high-voltage charge display device locking normally-closed contact are connected, described second end of the second high-voltage charge display device locking normally-closed contact and the first end of the second back door latching electromagnet are connected, described second end of the second back door latching electromagnet is connected with the negative pole of locking power supply；Described earthed switch locked loop includes earthed switch latching electromagnet, first end of described earthed switch latching electromagnet and the second end of the second high-voltage charge display device locking normally-closed contact are connected, and the second end of described second high-voltage charge display device locking normally-closed contact is connected with the negative pole of locking power supply；Described second closing locking circuit includes the second breaker closing latching electromagnet and the 4th circuit breaker trolley testing position, described first end of the 4th circuit breaker trolley testing position is connected with the positive pole of locking power supply, second end of described 4th circuit breaker trolley testing position and the first end of the second breaker closing latching electromagnet are connected, and described second end of the second breaker closing latching electromagnet is connected with the negative pole of locking power supply；Described second circuit breaker trolley locked loop includes the second circuit breaker trolley operating position, second circuit breaker trolley latching electromagnet, travel switch is gated after second grounding trolley testing position and second, the positive pole of the first end and locking power supply that gate travel switch after described second is connected, first end of the second end and the second grounding trolley testing position that gate travel switch after described second is connected, second end of described second grounding trolley testing position is connected with the first end of the first end of the second circuit breaker trolley operating position and the second circuit breaker trolley latching electromagnet respectively, described second end of the second circuit breaker trolley operating position and the second end of the 4th circuit breaker trolley testing position are connected, described second end of the second circuit breaker trolley latching electromagnet is connected with the negative pole of locking power supply；
The electric interlocking loop of described bus cabinet includes the 3rd back door locked loop, the 3rd closing locking circuit and the 3rd circuit breaker trolley locked loop；Described 3rd back door locked loop includes the 3rd back door latching electromagnet, 3rd high-voltage charge display device locking normally-closed contact, 4th circuit breaker trolley testing position and the first mother isolation trolley testing position, first end of described first mother isolation trolley testing position is connected with the positive pole of locking power supply, described second end of the first mother isolation trolley testing position and the first end of the 4th circuit breaker trolley testing position are connected, second end of described 4th circuit breaker trolley testing position and the first end of the 3rd high-voltage charge display device locking normally-closed contact are connected, described second end of the 3rd high-voltage charge display device locking normally-closed contact and the first end of the 3rd back door latching electromagnet are connected, described second end of the 3rd back door latching electromagnet is connected with the negative pole of locking power supply；Described 3rd closing locking circuit includes the 3rd breaker closing latching electromagnet and the 5th circuit breaker trolley testing position, described first end of the 5th circuit breaker trolley testing position is connected with the positive pole of locking power supply, described second end of the 5th circuit breaker trolley testing position and the first end of the 3rd breaker closing latching electromagnet are connected, and described second end of the 3rd breaker closing latching electromagnet is connected with the negative pole of locking power supply；nullDescribed 3rd circuit breaker trolley locked loop includes the 3rd and connects circuit breaker trolley operating position、3rd circuit breaker trolley latching electromagnet、Travel switch is gated after 3rd、Gate travel switch after mother isolation cabinet、Second mother isolation trolley testing position、Second female grounding trolley and first female grounding trolley，Described first female first end of grounding trolley is connected with the positive pole of locking power supply，Second end of described first female grounding trolley and the first end of second female grounding trolley are connected，Described second female second end of grounding trolley and the first end of the second mother isolation trolley testing position are connected，Second end of described second mother isolation trolley testing position is isolated, with mother, the first end gating travel switch after cabinet and is connected，The first end gating travel switch after gating second end and the 3rd of travel switch after described mother isolation cabinet is connected，The second end gating travel switch after described 3rd is connected with the first end of the 3rd the first end connecing circuit breaker trolley operating position and the 3rd circuit breaker trolley latching electromagnet respectively，Second end of the described 3rd the second end and the 5th circuit breaker trolley testing position connecing circuit breaker trolley operating position is connected，Described second end of the 3rd circuit breaker trolley latching electromagnet is connected with the positive pole of locking power supply；
Described mother isolation cabinet electric interlocking loop includes the 4th back door locked loop and mother isolation trolley locked loop；Described 4th back door locked loop includes the 4th back door latching electromagnet, 4th high-voltage charge display device locking normally-closed contact, 3rd mother isolation trolley testing position and the first bus dolly testing position, first end of described first bus dolly testing position is connected with the positive pole of locking power supply, described second end of the first bus dolly testing position and the first end of the 3rd mother isolation trolley testing position are connected, described second end of the 3rd mother isolation trolley testing position and the first end of the 4th high-voltage charge display device locking normally-closed contact are connected, described second end of the 4th high-voltage charge display device locking normally-closed contact and the first end of the 4th back door latching electromagnet are connected, described second end of the 4th back door latching electromagnet is connected with the negative pole of locking power supply；Described mother isolation trolley locked loop includes mother isolation trolley latching electromagnet, travel switch is gated after gating travel switch and bus cabinet after 4th, second end of the first end and the first bus dolly testing position that gate travel switch after described bus cabinet is connected, the first end gating travel switch after gating second end and the 4th of travel switch after described bus cabinet is connected, first end of the second end and mother isolation trolley latching electromagnet that gate travel switch after the described 4th is connected, described second end of mother isolation trolley latching electromagnet is connected with the negative pole of locking power supply；
Described voltage transformer cabinet electric interlocking loop includes grounding trolley locked loop, the 5th back door locked loop and fuse dolly locked loop；Described grounding trolley locked loop includes grounding trolley latching electromagnet, lead-in circuit breaker dolly testing position and the second bus dolly testing position, first end of described second bus dolly testing position is connected with the positive pole of locking power supply, described second end of the second bus dolly testing position is connected with the first end of lead-in circuit breaker dolly testing position, described second end of lead-in circuit breaker dolly testing position is connected with the first end of grounding trolley latching electromagnet, second end of described grounding trolley latching electromagnet is connected with the negative pole of locking power supply；Described 5th back door locked loop includes the 5th back door latching electromagnet, 5th high-voltage charge display device locking normally-closed contact and fuse dolly testing position, described first end of fuse dolly testing position is connected with the positive pole of locking power supply, second end of described fuse dolly testing position and the first end of the 5th high-voltage charge display device locking normally-closed contact are connected, described second end of the 5th high-voltage charge display device locking normally-closed contact and the first end of the 5th back door latching electromagnet are connected, described second end of the 5th back door latching electromagnet is connected with the negative pole of locking power supply；Described fuse dolly locked loop gates travel switch after including fuse dolly latching electromagnet RD-YO and the five, the positive pole of the first end and locking power supply that gate travel switch after the described 5th is connected, first end of the second end and fuse dolly latching electromagnet RD-YO that gate travel switch after the described 5th is connected, and second end of described fuse dolly latching electromagnet RD-YO is connected with the negative pole of locking power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341449.3A CN105811290A (en) | 2016-05-20 | 2016-05-20 | Electrical interlocking circuit for high-voltage switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341449.3A CN105811290A (en) | 2016-05-20 | 2016-05-20 | Electrical interlocking circuit for high-voltage switchgear |
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| CN105811290A true CN105811290A (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610341449.3A Pending CN105811290A (en) | 2016-05-20 | 2016-05-20 | Electrical interlocking circuit for high-voltage switchgear |
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