CN203707637U - Bus coupler cabinet handcart and interlocking circuit of bus coupler isolation cabinet handcart - Google Patents
Bus coupler cabinet handcart and interlocking circuit of bus coupler isolation cabinet handcart Download PDFInfo
- Publication number
- CN203707637U CN203707637U CN201420049207.3U CN201420049207U CN203707637U CN 203707637 U CN203707637 U CN 203707637U CN 201420049207 U CN201420049207 U CN 201420049207U CN 203707637 U CN203707637 U CN 203707637U
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- Prior art keywords
- handcart
- mother
- cabinet handcart
- cabinet
- isolation
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- Expired - Lifetime
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- 238000002955 isolation Methods 0.000 title claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a bus coupler cabinet handcart and an interlocking circuit of a bus coupler isolation cabinet handcart. In order to realize an interlocking loop between a bus coupler cabinet and a bus coupler isolation cabinet, a first contact point which responds to a situation that the bus coupler isolation handcart is located at a working position is connected in series in a closing locking loop of the bus coupler cabinet handcart. Only when the isolation handcart is located at the working position can the bus coupler cabinet handcart control closing motion of the handcart at a test position and the working position. A bus coupler cabinet can be prevented from being pushed to the bus coupler isolation handcart after a closing state. A first contact of a circuit breaker which responds to a situation that the bus coupler cabinet handcart is in an opening state is connected in series in the closing locking loop of the bus coupler isolation cabinet handcart. Only when the bus coupler cabinet is in the opening state can a latching electromagnet of the bus coupler isolation cabinet handcart obtain an electrolytic lock. The handcart can be moved in or moved out. Otherwise, the latching electromagnet of the bus coupler isolation cabinet handcart losses power, an iron core can not suck and a worm on a chassis of the handcart is stuck. At this time, the handcart worm can not make the handcart be moved in or moved out.
Description
Technical field
The utility model relates to electric power system interlocking technology, especially relates to the interlock circuit between a kind of mother cabinet handcart and mother isolation cabinet handcart.
Background technology
In electric power system distribution process, in order to guarantee power network safe operation, guarantee equipment and personal safety, to prevent misoperation, switch cubicle must possess and improves reliable interlock, to guarantee the correctness of operation sequence itself and operator's personal safety.These prevent the content of electric misoperation, are called for short " five is anti-", comprise 1, prevent from dividing by mistake, closing by mistake circuit breaker; 2, prevent that on-load from dividing, closing isolating switch; 3, prevent from being with cable address (closing) earth connection (earthed switch); 4, prevent that line with ground (switch) from closing a floodgate; 5) prevent mistakenly entering charged chamber.
The object that realizes " five is anti-" prevents misoperation and mistake side by side exactly, the mode that realizes locking by anti-mistaken interlocking device should be enforceable, after installing interlock, just can guarantee that staff must order in accordance with regulations operate, otherwise just cannot carry out, thereby effectively prevent misoperation.
The realization of " five is anti-" interlocking at present mostly only limits to separate unit switch electricity cabinet, realizes " five is anti-" although interlocking is also very important, more difficult between switch cubicle and switch cubicle.As everyone knows, the isolation handcart in mother isolation cabinet is without special arc-control device, generally can not be used for switching on or off load current.In the time that isolation handcart moves between test position and service position, must guarantee that mother cabinet handcart, in gate-dividing state, must not close a floodgate, should there is so-called " closing locking ".Otherwise if mother cabinet is in closing position, isolation handcart, in service position, now forbids that isolating handcart moves, and prevents that on-load from dividing isolation handcart.So how realizing the interlocking between mother cabinet and mother isolation cabinet, to achieve the above object, is exactly the problem that the utility model need to solve.
Utility model content
In order to address the above problem, the utility model provide a kind of simple in structure, can effectively prevent the interlock circuit between " informal operation " mother cabinet handcart and mother isolation cabinet handcart.
The utility model for the technical scheme that its technical problem of solution adopts is:
The interlock circuit of a kind of mother cabinet handcart and mother isolation cabinet handcart, it is characterized in that: comprise mother cabinet handcart closing locking circuit and mother isolation cabinet handcart closing locking circuit, in described mother cabinet handcart closing locking circuit, be in series with the auxiliary contact of reaction mother isolation handcart in service position, in described mother isolation cabinet handcart closing locking circuit, be in series with circuit breaker first contact of reaction mother cabinet handcart in gate-dividing state.
Further, described mother cabinet handcart closing locking circuit also comprises mother cabinet handcart closing locking electromagnet, circuit breaker second contact of reaction mother cabinet handcart in gate-dividing state, the first resistance, the primary importance switch of reaction mother cabinet handcart in service position, the second place switch of reaction mother cabinet handcart in test position, after the primary importance switch of described reaction mother cabinet handcart in service position and the second place switch in parallel of reaction mother cabinet handcart in test position, isolate the auxiliary contact of handcart in service position with the described mother of reacting, mother cabinet handcart closing locking electromagnet, circuit breaker second contact of reaction mother cabinet handcart in gate-dividing state, resistance is connected in series.
Further, described mother isolation cabinet handcart closing locking circuit also comprises rectifier bridge, mother isolation cabinet handcart latching electromagnet, the second resistance, the output that is connected to rectifier bridge after described mother isolation cabinet handcart latching electromagnet and the series connection of the second resistance, circuit breaker first contact of described reaction mother cabinet handcart in gate-dividing state is connected on the input of rectifier bridge.
The beneficial effects of the utility model are: in order to realize the interlock circuit between mother cabinet and mother isolation cabinet, in mother cabinet handcart closing locking circuit, be in series with first contact of reaction mother isolation handcart in service position, guarantee only in the time isolating handcart in service position, mother cabinet handcart can be controlled handcart feed motion in test position and service position, prevent that mother cabinet from pushing mother isolation handcart after "on" position, avoid another section of isolating switch on-load to close a floodgate, the personal safety that the serious arc light that produces three-phase arc short-circuit accident and produce due to misoperation jeopardizes operating personnel, even cause isolating switch blast, cause the accident of larger harm to produce to the person, in described mother isolation cabinet handcart closing locking circuit, be in series with circuit breaker first contact of reaction mother cabinet handcart in gate-dividing state, guarantee to only have when mother cabinet is during in gate-dividing state, mother isolation cabinet handcart latching electromagnet could obtain electrolysis lock, handcart can shake into and exit, otherwise mother isolation cabinet handcart latching electromagnet dead electricity, iron core can not adhesive, blocks the worm screw on handcart chassis, and now handcart worm screw can not shake handcart and shakes into and exit.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than whole embodiment, and those skilled in the art is not paying under the prerequisite of creative work, other designs and the accompanying drawing that can also obtain according to these accompanying drawings:
Fig. 1 is the utility model embodiment 10KV power distribution equipment primary system figure;
Fig. 2 is the utility model embodiment mother cabinet handcart closing locking schematic diagram;
Fig. 3 is the utility model embodiment mother isolation cabinet handcart closing locking schematic diagram.
Embodiment
With reference to Fig. 1, at electric substation's 10kV power distribution equipment in electrical design, 2 main transformer fanout operations, secretly for subsequent use each other.When arbitrary transformer fault, mother cabinet often will be isolated cabinet contact operation with mother, in order to guarantee " five is anti-" requirement, between mother cabinet and mother isolation handcart, must consider corresponding interlock connection.
With reference to Fig. 2, Fig. 3, the interlock circuit of a kind of mother cabinet handcart that the utility model embodiment provides and mother isolation cabinet handcart, comprise mother cabinet handcart closing locking circuit 1 and mother isolation cabinet handcart closing locking circuit 2, described mother cabinet handcart closing locking circuit 1 comprises the auxiliary contact SG9 of reaction mother isolation handcart in service position, mother cabinet handcart closing locking electromagnet Y1, the circuit breaker second contact DL2 of reaction mother cabinet handcart in gate-dividing state, the first resistance R 1, the primary importance switch S M9 of reaction mother cabinet handcart in service position, the second place switch S M8 of reaction mother cabinet handcart in test position, the primary importance switch S M9 of described reaction mother cabinet handcart in service position and reaction mother cabinet handcart are isolated the auxiliary contact SG9 of handcart in service position with the described mother of reacting after the second place switch S M8 of test position parallel connection, mother cabinet handcart closing locking electromagnet Y1, the circuit breaker second contact DL2 of reaction mother cabinet handcart in gate-dividing state, resistance R 1 is connected in series, described mother isolation cabinet handcart closing locking circuit 2 comprises circuit breaker first contact DL1, rectifier bridge V0, mother isolation cabinet handcart latching electromagnet Y0, second resistance R 2 of reaction mother cabinet handcart in gate-dividing state, the output that is connected to rectifier bridge V0 after described mother isolation cabinet handcart latching electromagnet Y0 and the second resistance R 2 series connection, the circuit breaker first contact DL1 of described reaction mother cabinet handcart in gate-dividing state is connected on the input of rectifier bridge V0.
With further reference to Fig. 2, mother cabinet closing locking principle is: mother cabinet handcart uses latching electromagnet Y1, Y0 to interlock with mother isolation handcart: coordinate with breaker closing dropout plate by its moving iron core, realize mechanical closing locking control; By the switching of its travel switch, realize electric closing locking control.Obtain electric in the situation that at secondary power supply guaranteeing, in mother cabinet handcart closing locking circuit 1, only isolate cabinet handcart in service position in mother, (while being auxiliary contact SG9 closure), mother cabinet handcart can be controlled handcart feed motion in test position (being second place switch S M8 closure) or service position (being primary importance switch S M9 closure), prevent that mother cabinet from pushing mother isolation handcart after "on" position, avoid another section of isolating switch on-load to close a floodgate, the personal safety that the serious arc light that produces three-phase arc short-circuit accident and produce due to misoperation jeopardizes operating personnel, even cause isolating switch blast, cause the accident of larger harm to produce to the person.Therefore carry out locking mother cabinet and reach the object of " five anti-" by latching electromagnet.If electromagnet damages, circuit breaker cannot close a floodgate, but handcart can advance in cabinet, pull-out maintenance, or be directly replaced by back-up breaker.Do not affect safe, the operation in time of whole distribution system.
With further reference to Fig. 3, mother isolation cabinet closing locking principle is: in mother isolation cabinet handcart closing locking circuit, be in series with the circuit breaker first contact DL1 of reaction mother cabinet handcart in gate-dividing state, guarantee to only have when mother cabinet is when gate-dividing state (being circuit breaker the first contact DL1 closure), mother isolation cabinet handcart latching electromagnet could obtain electrolysis lock, handcart can shake into and exit, otherwise mother isolation cabinet handcart latching electromagnet dead electricity, iron core can not adhesive, block the worm screw on handcart chassis, now handcart worm screw can not shake handcart and shakes into and exit.
More than that better enforcement of the present utility model is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and the distortion that these are equal to or replacement are all included in the application's claim limited range.
Claims (3)
1. the interlock circuit of a mother cabinet handcart and mother isolation cabinet handcart, it is characterized in that: comprise mother cabinet handcart closing locking circuit (1) and mother isolation cabinet handcart closing locking circuit (2), in described mother cabinet handcart closing locking circuit (1), be in series with the auxiliary contact (SG9) of reaction mother isolation handcart in service position, in described mother isolation cabinet handcart closing locking circuit (2), be in series with circuit breaker first contact (DL1) of reaction mother cabinet handcart in gate-dividing state.
2. the interlock circuit of a kind of mother cabinet handcart according to claim 1 and mother isolation cabinet handcart, it is characterized in that: described mother cabinet handcart closing locking circuit (1) also comprises mother cabinet handcart closing locking electromagnet (Y1), circuit breaker second contact (DL2) of reaction mother cabinet handcart in gate-dividing state, the first resistance (R1), the primary importance switch (SM9) of reaction mother cabinet handcart in service position, the second place switch (SM8) of reaction mother cabinet handcart in test position, primary importance switch (SM9) and reaction mother cabinet handcart second place switch (SM8) in test position in parallel rear and described the react mother isolation handcart auxiliary contact (SG9) in service position of described reaction mother cabinet handcart in service position, mother cabinet handcart closing locking electromagnet (Y1), circuit breaker second contact (DL2) of reaction mother cabinet handcart in gate-dividing state, resistance (R1) is connected in series.
3. the interlock circuit of a kind of mother cabinet handcart according to claim 1 and mother isolation cabinet handcart, it is characterized in that: described mother isolation cabinet handcart closing locking circuit (2) also comprises rectifier bridge (V0), mother isolation cabinet handcart latching electromagnet (Y0), the second resistance (R2), the output that is connected to rectifier bridge (V0) after described mother isolation cabinet handcart latching electromagnet (Y0) and the second resistance (R2) series connection, circuit breaker first contact (DL1) of described reaction mother cabinet handcart in gate-dividing state is connected on the input of rectifier bridge (V0).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049207.3U CN203707637U (en) | 2014-01-24 | 2014-01-24 | Bus coupler cabinet handcart and interlocking circuit of bus coupler isolation cabinet handcart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049207.3U CN203707637U (en) | 2014-01-24 | 2014-01-24 | Bus coupler cabinet handcart and interlocking circuit of bus coupler isolation cabinet handcart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707637U true CN203707637U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420049207.3U Expired - Lifetime CN203707637U (en) | 2014-01-24 | 2014-01-24 | Bus coupler cabinet handcart and interlocking circuit of bus coupler isolation cabinet handcart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811290A (en) * | 2016-05-20 | 2016-07-27 | 湖南雁能森源电力设备有限公司 | Electrical interlocking circuit for high-voltage switchgear |
| CN109921325A (en) * | 2019-03-12 | 2019-06-21 | 国网江苏省电力有限公司检修分公司 | A kind of switchgear closing locking circuit |
-
2014
- 2014-01-24 CN CN201420049207.3U patent/CN203707637U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811290A (en) * | 2016-05-20 | 2016-07-27 | 湖南雁能森源电力设备有限公司 | Electrical interlocking circuit for high-voltage switchgear |
| CN109921325A (en) * | 2019-03-12 | 2019-06-21 | 国网江苏省电力有限公司检修分公司 | A kind of switchgear closing locking circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200422 Address after: 528400 No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province Patentee after: Guangdong Mingyang Electric Co.,Ltd. Address before: 528437 Jiangling West Road, Torch Development Zone, Guangdong, No. 25, No. Patentee before: ZHONGSHAN MINGYANG ELECTRIC Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Patentee after: Guangdong Mingyang Electric Co.,Ltd. Address before: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Patentee before: Guangdong Mingyang Electric Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |