CN200953308Y - Interlocking and position indicating mechanism for circuit breaker cabinet - Google Patents

Interlocking and position indicating mechanism for circuit breaker cabinet Download PDF

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Publication number
CN200953308Y
CN200953308Y CN 200620046715 CN200620046715U CN200953308Y CN 200953308 Y CN200953308 Y CN 200953308Y CN 200620046715 CN200620046715 CN 200620046715 CN 200620046715 U CN200620046715 U CN 200620046715U CN 200953308 Y CN200953308 Y CN 200953308Y
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CN
China
Prior art keywords
interlocking
breaker
indicating mechanism
switch
isolating switch
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Expired - Fee Related
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CN 200620046715
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Chinese (zh)
Inventor
华杰
肖德明
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Shanghai Tianling Switchgear Co Ltd
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Shanghai Tianling Switchgear Co Ltd
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Priority to CN 200620046715 priority Critical patent/CN200953308Y/en
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Publication of CN200953308Y publication Critical patent/CN200953308Y/en
Anticipated expiration legal-status Critical
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Abstract

An interlock and position indicating mechanism for breaker is provided, which comprises a stored energy and a switching on and off indicating mechanism, an interlock mechanism and a vacuum breaker position indicating mechanism. The interlock mechanism comprises a lever fixed and positioned on an output principal axis of the breaker, a connecting rod, a first and a second lever for interlock output, a return board, an interlock output lifting and drawing plate, an auxiliary lifting plate, a mandril and a bumper pin fixed on a grounding close and depart principal axis. The stored energy indicating mechanism comprises a stud connected with the existing stored energy button with one end, a stored energy indicating sign hinged on a panel and a limiting pole fixed on the panel and can restrain the stored energy indicating sign in a designed position. The switching on and off indicating mechanism is composed of a bracket positioned on the breaker, a shaft with its shaft bearing on the bracket, a switching on and off indicating sign and a sleeve fixed at two ends of the shaft respectively; wherein, the sleeve is suited with a principal axis sleeve of the existing breaker transfer switch. The utility model fulfills the reliable indication and locking of the breaker cabinet during utilization, overhaul and maintenance and meets the requirements for ''five-protection'' interlocking.

Description

The interlocking of breaker cabinet and position indicating mechanism
Technical field:
The utility model belongs to breaker technical field, and being specifically related to is a kind of interlocking and position indicating mechanism of breaker cabinet.
Background technology:
Present breaker cabinet is applicable to mainly to exchange in 50Hz, 10kV ring network power supply or the biradial electric power system that control and protective device as electric energy are specially adapted to protect the protection of transformer and motor.Continuous development along with China's electric utility, especially China's upgrading urban and rural power grids is had higher requirement to the reasonable disposition of electric equipment products, aspects such as the user is low, non-maintaining to technical grade, the price of product, novelty, reliability and fail safe have all proposed requirements at the higher level, because piecing together cabinet, existing circuit breaker and switch cubicle use, so breaker cabinet just has limitation aspect structural configuration.
Present breaker cabinet is made up of vacuum circuit-breaker and isolating switch two large divisions, and does not have corresponding interlocking mechanism between the two, can not prevent that operating personnel's misoperation from damaging and losing operating personnel and equipment.
Therefore, need especially a cover meet the anti-functions (GB3906 interlock) of switch five, simple, convenient, be applicable to the interlocking device and the position indication of the breaker cabinet that exchanges 50Hz, 10kV ring network power supply or biradial electric power system reliably.
The utility model content:
Because the breaker cabinet size in original interchange 50Hz, 10kV ring network power supply or the biradial electric power system, the restriction of structure, for this reason, technical problem to be solved in the utility model is to provide the interlocking and the position indicating mechanism of the breaker cabinet of a kind of position indication that increases switch on the basis of original mechanism and interlock, this interlocking and position indicating mechanism are simple in structure, easy and simple to handle, safe and reliable, to solve the existing problem of breaker cabinet in present interchange 50Hz, 10kV ring network power supply or the biradial electric power system.
To achieve these goals, the utility model is achieved through the following technical solutions:
A kind of interlocking of breaker cabinet and position indicating mechanism, the position indication, the indication of vacuum circuit-breaker position and the interlocking device that comprise isolating switch, the position indicating mechanism of isolating switch determines three positions of isolating switch for existing on-load switch position indicating mechanism, described vacuum circuit-breaker position indicating mechanism comprises energy storage indicating mechanism and on/off switch indicating mechanism, it is characterized in that:
Described interlocking device comprises the connecting lever that is installed on the circuit breaker output main shaft, connecting rod, interlocking output first, two connecting levers, be installed in the connecting lever support on the isolating switch, slide plate, interlocking device lifts plate, be fixed on interlocking device and lift handle on the plate, lift the secondary riser that plate is connected with interlocking device, be fixed on the push rod on the secondary riser, be fixed on isolating switch ground connection and close backing pin on the branch main shaft, an end hinge of first connecting lever is exported at the two ends of described connecting rod respectively with connecting lever and interlocking, the other end of interlocking output first connecting lever and coaxial being arranged on the connecting lever support of an end of interlocking output second connecting lever, the other end and the slide plate hinge of interlocking output second connecting lever; Described slide plate slides is bearing on the circuit breaker, and described slide plate is provided with one and can blocks isolating switch ground connection and close the strut rail portion that branch main shaft and isolating switch close the branch main shaft; Described interlocking device lifts plate and secondary riser sliding bearing on circuit breaker, and both lower ends are connected with existing box bolt connecting plate.
Described energy storage indicating mechanism comprises that an end and existing energy storage link the double-screw bolt that connects and be hinged on the energy storage direction board on the panel and be fixed on the panel and the energy storage direction board can be limited in the limited post of a certain position, when the moving double-screw bolt of described energy storage cingulum turned to a certain position, the other end of double-screw bolt can touch an end of energy storage direction board.
Described on/off switch indicating mechanism comprises that the support, the axle that are installed on the circuit breaker are bearing in axle on the support, are separately fixed at the on/off switch direction board and the cover at a two ends, described on/off switch direction board is provided with the on/off switch sign, the main shaft socket of the change over switch of described cover and existing circuit breaker.
The utility model is because the structural configuration of isolating switch is consistent with basic principle and loading switch cabinet, so the position indicating mechanism of isolating switch indicates to determine three position indications of isolating switch with regard to the position of using original on-load switch.
When energy storage of the present utility model indicating mechanism utilizes mechanism's energy storage to the stretching of energy-stored spring, change the position of energy storage button, the corresponding position that changes double-screw bolt, the energy storage direction board that utilizes double-screw bolt to drive on the panel moves, rely on the spacing of limited post, realize the energy storage indication.
Because it is synchronous that the main shaft of the rotation of circuit breaker change over switch and circuit breaker rotates, close two kinds of positions of branchs and differ 90 degree, the main shaft rotating band moving axis of change over switch rotates, and realizes that by the on/off switch direction board that rotates synchronously with axle the branch that closes of breaker mechanism indicates.
The utility model can realize fully that GB3906 is about the barring program of the operation of tri-station isolating switch mechanism and breaker mechanism and about the regulation of operation sequence between tri-station isolating switch mechanism, breaker mechanism and the cable vault's door.When breaker mechanism was in " combined floodgate " position, isolating switch mechanism can not be operated; When breaker mechanism was in " separating brake " position, isolating switch mechanism can be operated, to have realized the interlocking of breaker mechanism and isolating switch mechanism.
When isolating switch mechanism be in " ground connection " position, when breaker mechanism is in " combined floodgate " position, cable vault's door just can be opened; When isolating switch mechanism was in " combined floodgate ", " separating brake " position, cable vault's door can not be opened; When breaker mechanism was in " separating brake " position, cable vault's door can not be opened; When the Men Wei of cable vault shut, breaker mechanism and isolating switch mechanism all can not be operated; So just realized the locking between breaker mechanism, isolating switch mechanism and the cable vault's door.
The utility model realizes that by to the interlocking of circuit breaker and the design of position indicating mechanism breaker cabinet is using, and maintenance has reliable indication and blocking function when safeguarding.Satisfy five-defence block requirement, customer requirements and national standard, and improved reliability of products, fail safe.Make its performance further perfect, obtained user's favorable comment, energy and similar products at home and abroad competition.
Description of drawings:
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is the interlocking of the utility model breaker cabinet and the energy storage indicating mechanism schematic diagram of position indicating mechanism;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is the stereogram of the energy storage indicating mechanism of the interlocking of the utility model breaker cabinet and position indicating mechanism;
Fig. 4 is the schematic diagram of the on/off switch indicating mechanism of the interlocking of the utility model breaker cabinet and position indicating mechanism;
Fig. 5 is the interlocking of the utility model breaker cabinet and the on/off switch indicating mechanism stereogram of position indicating mechanism;
Fig. 6 is the interlocking of the utility model breaker cabinet and the indication schematic diagram of position indicating mechanism;
Schematic diagram when Fig. 7 is in the breaker closing position for the interlocking device of the interlocking of the utility model breaker cabinet and position indicating mechanism;
Fig. 8 is in the schematic diagram that closes the branch position for the interlocking device of the interlocking of the utility model breaker cabinet and position indicating mechanism is in isolating switch;
Fig. 9 is the end view of the interlocking device of the interlocking of the utility model breaker cabinet and position indicating mechanism;
Figure 10 is the interlocking of the utility model breaker cabinet and the breaker closing position of position indicating mechanism, the schematic diagram that isolating switch is in earthing position;
Figure 11 is for the circuit breaker of the interlocking of the utility model breaker cabinet and position indicating mechanism is in closing position, isolating switch is in the schematic diagram that closes the branch position;
Figure 12 is in the schematic diagram that separating brake position, isolating switch are in the separating brake position for the circuit breaker of the interlocking of the utility model breaker cabinet and position indicating mechanism;
Figure 13 is the schematic diagram of the breaker open operation position of the interlocking of the utility model breaker cabinet and position indicating mechanism;
Figure 14 is the A place partial enlarged drawing of Figure 13.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
A kind of interlocking of breaker cabinet and position indicating mechanism, the position indication, the indication of vacuum circuit-breaker position and the interlocking device that comprise isolating switch, the position indicating mechanism of isolating switch determines three positions of isolating switch for existing on-load switch position indicating mechanism, described vacuum circuit-breaker position indicating mechanism comprises energy storage indicating mechanism and on/off switch indicating mechanism
Referring to Fig. 1 to Fig. 3, energy storage indicating mechanism comprises double-screw bolt 12 or the pin that an end is connected with existing energy storage button 11 and is hinged on the energy storage direction board 13 on the panel and is fixed on the limited post 14 that also energy storage direction board 13 can be limited in a certain position on the panel, when utilizing mechanism's energy storage to the stretching of energy-stored spring, change the position of energy storage button 11, energy storage button 11 drives double-screw bolt 12 and turns to a certain position, the corresponding position that changes double-screw bolt 12, the other end of double-screw bolt 12 can touch an end of energy storage direction board 13, the energy storage direction board 13 that utilizes double-screw bolt 12 to drive on the panel moves, rely on the spacing of limited post 14, realize the energy storage indication.
In order to reduce the friction that takes place when 12 pairs of energy storage direction boards of double-screw bolt 13 collide, contact that end with energy storage direction board 13 at double-screw bolt 12 one rolling bearing 121 is installed, when rolling bearing 121 touches energy storage direction board 13, can slip over energy storage direction board 13 very trippingly.
Referring to Fig. 4 and Fig. 5, on/off switch indicating mechanism comprises that the support 24 that is installed on the circuit breaker, axle are bearing in axle 22 on the support 24, are separately fixed at the on/off switch direction board 23 at axle 22 two ends and overlap 25, on/off switch direction board 23 is provided with on/off switch sign 231, main shaft 261 sockets of the change over switch 26 of cover 23 and existing circuit breaker.Because it is synchronous that the rotation of circuit breaker change over switch 26 and the main shaft of circuit breaker rotate, close two kinds of positions of branch and differ 90 degree, the main shaft 261 rotating band moving axis 22 of change over switch 26 rotate, by indicating (referring to Fig. 6) with the branch that closes of the axle 22 synchronous on/off switch direction boards that rotate 23 realization breaker mechanisms.
In Fig. 6, figure a is that isolating switch is in closing position, circuit breaker is in the indication schematic diagram of energy storage position that closes a floodgate.Figure b is that isolating switch is in closing position, circuit breaker is in the not indication schematic diagram of energy storage position of separating brake.231 is the on/off switch sign of circuit breaker among the figure, and 131 is circuit breaker energy storage sign, and 27 are the isolating switch indication.
Referring to Fig. 7, Fig. 8 and Fig. 9, connecting lever 35 in the interlocking device is installed on the circuit breaker output main shaft 36, an end hinge of first connecting lever 37 is exported at the two ends of connecting rod 33 respectively with connecting lever 35 and interlocking, the other end of interlocking output first connecting lever 37 and coaxial being arranged on the connecting lever support 38 of an end of interlocking output second connecting lever 32, the other end and slide plate 31 hinges of interlocking output second connecting lever 32; Slide plate 31 is contained on the isolating switch by two guide and limit pins 39, and slide plate 31 is provided with one and can blocks isolating switch ground connection and close the strut rail portion 311 that branch main shaft 41 and isolating switch close branch main shaft 42.When circuit breaker output main shaft 36 rotates, promote slide plates 31 and rise by connecting lever 35, connecting rod 33, interlocking output first connecting lever 37, interlocking output second connecting lever 32, strut rail portion 311 is to cover isolating switch ground connection and close branch main shaft 41 and isolating switch closes branch main shaft 42.
Referring to Figure 12, the interlocking device in the interlocking device lifts plate 51 and secondary riser 52 parallel connections, and both sliding bearings are on circuit breaker, and both lower ends are connected with existing box bolt connecting plate 53, are fixed with latch 54 on box bolt connecting plate 53.Interlocking device lift be fixed with on the plate 51 handle 55.Can promote interlocking device by this handle 55 and lift plate 51 and secondary riser 52, drive latch 54 and insert and extract.
Be fixed with push rod 56 at the top of secondary riser 52, close isolating switch ground connection and be fixed with backing pin 57 or double-screw bolt on the branch main shaft 41.
The concrete course of work of above-mentioned interlocking device is:
1, the interlocking process of breaker mechanism and isolating switch mechanism
Referring to Fig. 7, Fig. 8, when breaker switching-on operation, output main shaft 36 corresponding rotation 42 degree of circuit breaker, rotate by connecting lever 35, connecting rod 33, interlocking output first connecting lever 37,32 outputs of interlocking output second connecting lever, interlocking output second connecting lever 32 promotes slide plates 31 40mm that moves upward, strut rail portion 311 on the slide plate 31 picks up retaining to " closing branch " " ground connection " handle hole of isolating switch fully, because the handle hole of isolating switch panel has only φ 37mm (as shown in Figure 6), therefore can satisfy the designing requirement of (GB3906 interlock) regulation.
2, the locking process between breaker mechanism, isolating switch mechanism and the cable vault's door
Referring to Figure 10, Figure 11, Figure 13, Figure 14, because the stroke up and down of the slide plate 52 in the interlocking device is 46mm; When locking cable vault's door 58, it is 22mm that latch 54 inserts strokes; So when requiring cable vault's door 58 not open, as long as the interlocking device in the interlocking device lifts the action of plate 51 less than inserting stroke 22mm, still reliably, when requiring cable vault's door 58 to open, as long as the interlocking device in the interlocking device lifts plate 51 actuating lengths greater than inserting stroke 22mm.
When circuit breaker is in closing position, slide plate 31 40mm that moves upward, there is 48mm in the gap that the interlocking device in slide plate 31 and the interlocking device is lifted between the plate 51, so just guarantees that interlocking device in the interlocking device lifts the space of the 46mm stroke that plate 51 makes progress.When isolating switch is in earthing position, isolating switch ground connection is closed branch main shaft 41 and is counterclockwise turn 90 degrees, the backing pin 57 that isolating switch ground connection is closed on the branch main shaft 41 is in vertical direction, allows open position make the interlocking device of interlocking device lift plate 51 and secondary riser 52 and can move upward arbitrarily and guarantee that the interlocking device of interlocking device lifts the space of the 46mm stroke that plate 51 and secondary riser 52 make progress.So when isolating switch is in earthing position, when circuit breaker is in closing position, as long as upwards lift hand 55, interlocking device is lifted plate 51 and secondary riser 52 mention the back, position and pin automatically.Cable vault's door 58 just can have been opened.
When isolating switch was in " combined floodgate " " separating brake " position: the backing pin 57 that isolating switch ground connection is closed on the branch main shaft 41 was horizontal, between the push rod 56 in this backing pin 57 and the interlocking device 10mm gap is arranged, can only allow the interlocking device of interlocking device lift plate 51 and secondary riser 52 10mm that moves upward, the hypomotility of 10mm is to open cable vault's door 58 but this makes progress.And the gap of this 10mm can allow isolating switch ground connection close 41 normal runnings of branch main shaft.So just when isolating switch is in " combined floodgate " " separating brake " position, can not open cable vault's door.
Referring to Figure 12, when circuit breaker is in the separating brake position, utilize connecting lever 35, connecting rod 33, interlocking output first connecting lever 37,32 outputs of interlocking output second connecting lever to make slide plate 31 and interlocking device lift the gap of having only 8mm between the plate 51, and the gap of this 8mm also is not enough to open cable vault's door 58, opens the upward stroke that will have at least more than the 22mm because of cable vault's door 58.So when circuit breaker is in the separating brake position, can not open cable vault's door 58.
Referring to Figure 13, Figure 14, when cable vault's door 58 was not shut, this moment, circuit breaker was in closing position, and isolating switch is in earthing position, if accomplish circuit breaker can not separating brake and isolating switch ground connection just can not divide and can meet the demands.The interlocking device of interlocking device lifts after plate 51 and secondary riser 52 mention, and has back-moving spring 59 to reach auto-lock function.Have only after shutting cable vault's door 58, utilize tongue on cable vault's door 58 to press interlocking device to make the self-locking releasing of cable vault's door 58, the cable vault's door 58 that falls to putting in place automatically pins.When the Men Wei of cable vault shut, the interlocking device of interlocking device lifted plate 51 and secondary riser 52 and is in and lifts the position, and the separating brake knob 60 of circuit breaker is blocked (Figure 11), and it can not be operated, and when circuit breaker not during separating brake, isolating switch mechanism is inoperable.Can reach like this when cable vault's door 58 is not shut, breaker mechanism and isolating switch mechanism all can not be operated.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (3)

1, a kind of interlocking of breaker cabinet and position indicating mechanism, the position indication, the indication of vacuum circuit-breaker position and the interlocking device that comprise isolating switch, the position indicating mechanism of isolating switch determines three positions of isolating switch for existing on-load switch position indicating mechanism, described vacuum circuit-breaker position indicating mechanism comprises energy storage indicating mechanism and on/off switch indicating mechanism, it is characterized in that:
Described interlocking device comprises the connecting lever that is installed on the circuit breaker output main shaft, connecting rod, interlocking output first, two connecting levers, be installed in the connecting lever support on the isolating switch, slide plate, interlocking device lifts plate, be fixed on interlocking device and lift handle on the plate, lift the secondary riser that plate is connected with interlocking device, be fixed on the push rod on the secondary riser, be fixed on isolating switch ground connection and close backing pin on the branch main shaft, an end hinge of first connecting lever is exported at the two ends of described connecting rod respectively with connecting lever and interlocking, the other end of interlocking output first connecting lever and coaxial being arranged on the connecting lever support of an end of interlocking output second connecting lever, the other end and the slide plate hinge of interlocking output second connecting lever; Described slide plate slides is bearing on the circuit breaker, and described slide plate is provided with one and can blocks isolating switch ground connection and close the strut rail portion that branch main shaft and isolating switch close the branch main shaft; Described interlocking device lifts plate and secondary riser sliding bearing on circuit breaker, and both lower ends are connected with existing box bolt connecting plate.
2, the interlocking of breaker cabinet according to claim 1 and position indicating mechanism, it is characterized in that, described energy storage indicating mechanism comprises that an end and existing energy storage link the double-screw bolt that connects and be hinged on the energy storage direction board on the panel and be fixed on the panel and the energy storage direction board can be limited in the limited post of a certain position, when the moving double-screw bolt of described energy storage cingulum turned to a certain position, the other end of double-screw bolt can touch an end of energy storage direction board.
3, the interlocking of breaker cabinet according to claim 1 and position indicating mechanism, it is characterized in that, described on/off switch indicating mechanism comprises that the support, the axle that are installed on the circuit breaker are bearing in axle on the support, are separately fixed at the on/off switch direction board and the cover at a two ends, described on/off switch direction board is provided with the on/off switch sign, the main shaft socket of the change over switch of described cover and existing circuit breaker.
CN 200620046715 2006-10-11 2006-10-11 Interlocking and position indicating mechanism for circuit breaker cabinet Expired - Fee Related CN200953308Y (en)

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Application Number Priority Date Filing Date Title
CN 200620046715 CN200953308Y (en) 2006-10-11 2006-10-11 Interlocking and position indicating mechanism for circuit breaker cabinet

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Application Number Priority Date Filing Date Title
CN 200620046715 CN200953308Y (en) 2006-10-11 2006-10-11 Interlocking and position indicating mechanism for circuit breaker cabinet

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CN200953308Y true CN200953308Y (en) 2007-09-26

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105957769A (en) * 2016-06-15 2016-09-21 西电气有限公司 Tank-type vacuum circuit breaker
CN108711534A (en) * 2018-05-28 2018-10-26 福建中能电气有限公司 The interlocking mechanism of permanent-magnet breaker
CN109559918A (en) * 2018-12-14 2019-04-02 北京双杰电气股份有限公司 Intelligent cable is segmented cabinet interlock
CN112002574A (en) * 2020-06-18 2020-11-27 平高集团有限公司 Switching-on and switching-off indicating device, quick mechanical switch and direct-current circuit breaker
CN112967911A (en) * 2021-01-13 2021-06-15 河南平高电气股份有限公司 Circuit breaker operating mechanism
CN113327790A (en) * 2021-05-26 2021-08-31 许继集团有限公司 Isolation on-off indicating device of pole-mounted switch and installation method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105957769A (en) * 2016-06-15 2016-09-21 西电气有限公司 Tank-type vacuum circuit breaker
CN108711534A (en) * 2018-05-28 2018-10-26 福建中能电气有限公司 The interlocking mechanism of permanent-magnet breaker
CN109559918A (en) * 2018-12-14 2019-04-02 北京双杰电气股份有限公司 Intelligent cable is segmented cabinet interlock
CN109559918B (en) * 2018-12-14 2020-03-31 北京双杰电气股份有限公司 Intelligent cable segmentation cabinet interlocking device
CN112002574A (en) * 2020-06-18 2020-11-27 平高集团有限公司 Switching-on and switching-off indicating device, quick mechanical switch and direct-current circuit breaker
CN112967911A (en) * 2021-01-13 2021-06-15 河南平高电气股份有限公司 Circuit breaker operating mechanism
CN112967911B (en) * 2021-01-13 2024-04-12 河南平高电气股份有限公司 Circuit breaker operating mechanism
CN113327790A (en) * 2021-05-26 2021-08-31 许继集团有限公司 Isolation on-off indicating device of pole-mounted switch and installation method
CN113327790B (en) * 2021-05-26 2024-04-16 许继集团有限公司 Isolation closing and opening indicating device of pole-mounted switch and mounting method

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Granted publication date: 20070926

Termination date: 20131011