CN105471081B - A kind of anti-mistaken interlocking device that 10KV high-voltage central-positioned switchgear supplies power with double circuit - Google Patents
A kind of anti-mistaken interlocking device that 10KV high-voltage central-positioned switchgear supplies power with double circuit Download PDFInfo
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- CN105471081B CN105471081B CN201510733633.8A CN201510733633A CN105471081B CN 105471081 B CN105471081 B CN 105471081B CN 201510733633 A CN201510733633 A CN 201510733633A CN 105471081 B CN105471081 B CN 105471081B
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Abstract
The present invention proposes a kind of anti-mistaken interlocking device that 10kV high-voltage central-positioned switchgear supplies power with double circuit, and is mounted in the circuit that double loop power supply is powered the same transformer, is respectively equipped with high-pressure vacuum breaker and travel switch in two power supply circuits；The travel switch normally opened contact in power supply circuit is connected with the closing circuit contact of another way power supply circuit mesohigh vacuum circuit breaker all the way, when the circuit breaker chassis of power supply circuit all the way runs to testing position, travel switch normally opened contact closure in the power supply circuit of place, causes another way power supply circuit mesohigh vacuum circuit breaker closing circuit to disconnect.The present invention effectively can improve power supply safety to transformer-supplied by reality only one high-voltage central-positioned switchgear of synchronization, and have the advantages of simple structure and easy realization.
Description
Technical field
The present invention relates to the structure member of 10KV high voltage mid-placed cabinet, especially a kind of 10KV high-voltage central-positioned switchgear two-way
The anti-mistaken interlocking device of power supply.
Background technique
The long requirement to the safety and reliability of power supply system of current hydroelectric generation is gradually increased, many power supply systems
All the same transformer is powered using double loop power supply, wherein be all the way main power source another way being accessory power supply, when main electricity
When source is broken down, power supply can be replenished in time in accessory power supply, avoid that power supply trouble occurs.In early stage power supply system, main power source
Accessory power supply branch between be it is unrelated, do not restrict mutually, the combined floodgate of power supply circuit fully relies on artificial judgment, therefore very
It is easy to lead to two-way power supply while powering grid-connected failure occurs because of error in judgement.
With the continuous development of power grid, the continuous renewal of technology, anti-mistaken interlocking device is continuously improved and perfect, installation
Anti-mistaken interlocking device final purpose is exactly the normal safe operation to protect electrical equipment on power grid.Existing anti-mistaken interlocking device
Predominantly mechanical anti-misoperation device and anti-error electric locking device, mechanical anti-misoperation device is established on once-through operation circuit, by opening
It closes with the main contactor of plug-in strip and realizes；Anti-error electric locking device is established on secondary operation circuit, it is general by switch and
The auxiliary contacts point of plug-in strip is realized chain.But handcart interlock is used in the prior art, makes breaker only in experimental site
Or could close a floodgate when operating position, and breaker is immovable after combined floodgate, but there are still some problems for this mode, as long as breaking
Device is in intermediate switchgear cabinet cell, it is possible to because the reasons such as operation error or circuit breaker failure cause duplex feeding power supply
It closes a floodgate simultaneously.
Summary of the invention
Goal of the invention: in order to solve the above technical problems, the present invention proposes that a kind of 10KV high-voltage central-positioned switchgear two-way supplies
The anti-error interlock of electricity, can effectively realize in synchronization circuit only power supply power supply all the way, i.e., ought power supply circuit all the way
In breaker closing when, another circuit breaker in switchgear cell even at can not close a floodgate.
Technical solution: technical solution proposed by the present invention are as follows: a kind of 10KV high-voltage central-positioned switchgear supplies power with double circuit anti-
Mistaken interlocking device is mounted in the circuit that double loop power supply is powered the same transformer, and double loop power supply is main power source all the way
Switchgear, another way are auxiliary power switch cabinet, are equipped with high-pressure vacuum breaker 1 and travel switch 3 in two power supply circuits,
1 bottom of high-pressure vacuum breaker is equipped with circuit breaker chassis 5, and circuit breaker chassis 5 includes chassis vehicle wheel, chassis locating rack 6
With chassis vehicle knob 7, travel switch 3 include idler wheel 3-1, action pin 3-2 and compression bar piece 3-3,2 bottom of high voltage mid-placed cabinet cabinet body every
Plate 4 is equipped with an aperture, the underface of chassis locating rack 6 when aperture is located at testing position, and is located at 5 liang of circuit breaker chassis
On the central axes of side wheel Crane Rail；The travel switch 3 in power supply circuit is fixed on the high voltage mid-placed cabinet cabinet of another way all the way
On 2 bottom baffles of body, 4 lower surface, idler wheel 3-1 protrudes into high voltage mid-placed cabinet cabinet body 2 out of aperture, arrives 4 table of partition at the top of idler wheel 3-1
Height of the height in face with 6 bottom of chassis locating rack away from partition (4) upper surface is equal；The row being mounted below main power switch cabinet
The action pin 3-2 of Cheng Kaiguan 3 is connected with the contact of 1 closing circuit of high-pressure vacuum breaker in accessory power supply switchgear, installation
The action pin 3-2 and 1 closing circuit of main power switch cabinet mesohigh vacuum circuit breaker of travel switch 3 in auxiliary power circuit
Contact be connected；When main power switch cabinet or accessory power supply switchgear mesohigh vacuum circuit breaker 1 close a floodgate, high pressure vacuum open circuit
The chassis locating rack 6 of device 1 pushes down idler wheel 3-1, and idler wheel 3-1 is pushed action pin 3-2 by compression bar piece 3-3, causes another power supply
1 closing circuit contact of circuit mesohigh vacuum circuit breaker is opened, and another power supply circuit mesohigh vacuum circuit breaker 1 cannot close a floodgate；
When needing to switch power supply, the high pressure vacuum in high-voltage central-positioned switchgear cell is broken by chassis vehicle knob 7
The chassis locating rack 6 of road device 1 is pulled open from testing position or operating position, and the action pin 3-2 of travel switch 3 restores to the original state, another
1 closing circuit contact closure of road power supply circuit mesohigh vacuum circuit breaker, another way power supply circuit start to power.
Preferably, the chassis vehicle knob 7 is mounted on 6 rear wall of chassis locating rack, is made of insulating material, chassis vehicle
Graininess protrusion is evenly distributed on knob 7.
Preferably, a light bulb is respectively concatenated in the main power switch cabinet and accessory power supply switchgear power supply circuit, two
A buzzer is serially connected between light bulb, when wherein power supply circuit is connected all the way, corresponding light bulb is lighted, and another light bulb extinguishes；When
Duplex feeding circuit simultaneously to transformer-supplied when, buzzer sounds.
The utility model has the advantages that compared with prior art, the present invention having the advantage that
1, ensure breaker regardless of at operating position or testing position, the breaker of another way power supply cannot be closed
Lock, make 10KV high voltage mid-placed cabinet supply power with double circuit it is safer in operation and maintenance；
2, further, it is made of insulating material on chassis vehicle knob, it is possible to increase the safety of maintenance, on chassis vehicle knob
It is evenly distributed with graininess protrusion, can be played the role of anti-skidding；
3, further, a light bulb is respectively concatenated in external service power cabinet and Generator Outlet Switchgear cabinet power supply circuit,
It can show power supply circuit power supply state, a buzzer is serially connected between two light bulbs, the capable of emitting alarm when supplying power with double circuit,
It can be overhauled in time, improve trouble hunting efficiency.
Detailed description of the invention
Fig. 1 is the embodiment circuit structure diagram that 10KV high-voltage central-positioned switchgear supplies power with double circuit；
Fig. 2 is external service power cabinet travel switch interlock diagram in embodiment；
Fig. 3 is generator outlet branch switch cabinet travel switch interlock diagram in embodiment；
Fig. 4 is a kind of anti-mistaken interlocking device structure that 10KV high-voltage central-positioned switchgear supplies power with double circuit proposed by the present invention
Figure；
Fig. 5 is anti-mistaken interlocking device partial enlarged view.
In figure, 1, high-pressure vacuum breaker, 2, high voltage mid-placed cabinet cabinet body, 3, travel switch, 4, partition, 5, chassis of circuit breaker
Vehicle, 6, chassis locating rack, 7, chassis vehicle knob；1N: the microcomputer protecting device of external service power cabinet, 1ZK: external service power
The change-over switch of cabinet, 1KK: the DC power supply switch of external service power cabinet, IIXCK: the row of generator outlet branch switch cabinet
Cheng Kaiguan；2N: the microcomputer protecting device of generator outlet branch switch cabinet, 2ZK: the conversion of generator outlet branch switch cabinet is opened
It closes, 2KK: the DC power supply switch of generator outlet branch switch cabinet, IXCK: the travel switch of external service power cabinet.
Specific embodiment
The present invention will be further explained with embodiment with reference to the accompanying drawing.
Embodiment: the circuit structure diagram to supply power with double circuit as shown in Figure 1 for 10KV high-voltage central-positioned switchgear, in the present embodiment
In, double loop power supply is external power supply and 10.5kV power supply, and two-way power supply passes through external service power cabinet and generator outlet respectively
Switchgear realizes the power supply to transformer.Wherein, Generator Outlet Switchgear cabinet is as main power source cabinet, external service power cabinet conduct
Accessory power supply cabinet.Fig. 2, Fig. 3 are respectively external service power cabinet and Generator Outlet Switchgear cabinet travel switch interlock diagram, and two
It is respectively provided with high-pressure vacuum breaker 1 in the power supply circuit of road, is divided into breaker I and breaker II.It is respectively provided in duplex feeding circuit
One travel switch 3, respectively travel switches I XCK and travel switches I IXCK.In order to reach in synchronization power supply circuit only
There is a switchgear to the purpose of transformer-supplied, therefore, to assure that when power supply circuit mesohigh vacuum circuit breaker 1 closes a floodgate all the way,
1 closing circuit of high-pressure vacuum breaker in another way power supply circuit cannot be closed.
Anti-mistaken interlocking device structure such as Fig. 4 institute that a kind of 10KV high-voltage central-positioned switchgear proposed by the present invention supplies power with double circuit
Show, include high-pressure vacuum breaker 1 and travel switch 3 in two power supply circuits, 1 bottom of high-pressure vacuum breaker is equipped with open circuit
Device chassis vehicle 5, travel switch 3 include idler wheel 3-1, action pin 3-2 and compression bar piece 3-3, and circuit breaker chassis 5 includes chassis vehicle vehicle
Wheel, chassis locating rack 6 and chassis vehicle knob 7.When high-pressure vacuum breaker 1 is located at testing position or operating position, chassis is fixed
Position frame 6 is fixed on 2 bottom baffles 4 of high voltage mid-placed cabinet cabinet body, 1 stop motion of high-pressure vacuum breaker.The present invention utilizes chassis
Locating rack 6 and travel switch 3 form interlocking, specific structure are as follows: 2 bottom baffles 4 of high voltage mid-placed cabinet cabinet body are equipped with one
A aperture, the underface of chassis vehicle locating rack 6 when aperture is located at testing position, and it is located at 5 two sides wheel row of circuit breaker chassis
On the central axes in track road；Travel switch 3 is fixed on 2 bottom baffles of high voltage mid-placed cabinet cabinet body, 4 lower surface, and idler wheel 3-1 is from small
High voltage mid-placed cabinet cabinet body 2 is protruded into hole, the height for arriving 4 upper surface of partition at the top of idler wheel 3-1 and 6 bottom of chassis locating rack are away from partition
The height of 4 upper surfaces is equal；It is mounted on the contact action pin 3-2 and the accessory power supply of the travel switch 3 below main power switch cabinet
The closing circuit contact of switchgear mesohigh vacuum circuit breaker 1 is connected, and is mounted on the dynamic of the travel switch 3 in auxiliary power circuit
Make the pin contact 3-2 to be connected with 1 closing circuit contact of high-pressure vacuum breaker below main power switch cabinet.Because of circuit breaker chassis
5 effect, high-pressure vacuum breaker 1 can only could close a floodgate in testing position or operating position, when main power switch cabinet or auxiliary
When power switch cabinet mesohigh vacuum circuit breaker 1 closes a floodgate, the chassis locating rack 6 of high-pressure vacuum breaker 1 just pushes down idler wheel 3-
1, idler wheel 3-1 are pushed action pin 3-2 by compression bar piece 3-3, and action pin 3-2 and another way power supply circuit mesohigh vacuum are disconnected
Device 1 closing circuit contact in road is connected, and action pin 3-2 causes another power supply circuit mesohigh vacuum circuit breaker 1 to close a floodgate back when pushing
Road contact is opened, and causes travel switch 3 in another power supply circuit that cannot close a floodgate.When needing to switch power supply, pass through chassis
Vehicle knob 7 pulls open the chassis locating rack 6 of the high-pressure vacuum breaker 1 in cell from testing position or operating position, and stroke is opened
Close 3 action pin 3-2 reinstatement, 1 closing circuit of another way power supply circuit mesohigh vacuum circuit breaker closure, another way power supply
Circuit starts to power.
As present invention further optimization embodiment, the chassis vehicle knob 7 is by being made of insulating material, chassis vehicle
It is evenly distributed with graininess protrusion on knob 7, on the one hand which can increase operational safety, on the other hand increase friction
Power pulls out high-pressure vacuum breaker 1 more easily control from high-voltage central-positioned switchgear.
As present invention further optimization embodiment, the external service power cabinet and Generator Outlet Switchgear cabinet are supplied
A light bulb is respectively concatenated in circuit, and a buzzer is serially connected between two light bulbs, it is right when wherein power supply circuit is connected all the way
Light bulb is answered to light, another light bulb extinguishes；When duplex feeding circuit simultaneously to transformer-supplied when, buzzer sounds.Operator
Light on and off situation by observing two light bulbs can learn the working condition of power supply circuit, when duplex feeding circuit is powered simultaneously
When, buzzer can sound an alarm in time, and testing staff is facilitated to overhaul immediately, avoid the occurrence of serious power supply trouble.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of anti-mistaken interlocking device that 10KV high-voltage central-positioned switchgear supplies power with double circuit, is mounted on double loop power supply to the same change
In the circuit that depressor is powered, double loop power supply is main power switch cabinet all the way, and another way is auxiliary power switch cabinet, two confessions
High-pressure vacuum breaker (1) and travel switch (3) are equipped in circuit, high-pressure vacuum breaker (1) bottom is equipped with breaker
Chassis vehicle (5), circuit breaker chassis (5) include chassis vehicle wheel, chassis locating rack (6) and chassis vehicle knob (7), travel switch
(3) include idler wheel (3-1), action pin (3-2) and compression bar piece (3-3), which is characterized in that high voltage mid-placed cabinet cabinet body (2) bottom every
Plate (4) is equipped with an aperture, the underface of chassis locating rack (6) when aperture is located at testing position, and is located at chassis of circuit breaker
On the central axes of vehicle (5) two sides wheel Crane Rail；The travel switch in power supply circuit (3) is fixed on the high pressure of another way all the way
On middle-placed switch cabinet cabinet body (2) bottom baffles (4) lower surface, idler wheel (3-1) protrudes into high voltage mid-placed cabinet cabinet body (2), idler wheel out of aperture
Height of the height with chassis locating rack (6) bottom away from partition (4) upper surface at the top of (3-1) to partition (4) upper surface is equal；Peace
The action pin (3-2) of travel switch (3) below main power switch cabinet and the high pressure vacuum in accessory power supply switchgear break
The contact of road device (1) closing circuit is connected, and is mounted on action pin (3-2) and the master of the travel switch (3) in auxiliary power circuit
The contact of power switch cabinet mesohigh vacuum circuit breaker (1) closing circuit is connected；When main power switch cabinet or accessory power supply switch
When cabinet mesohigh vacuum circuit breaker (1) closes a floodgate, the chassis locating rack (6) of high-pressure vacuum breaker (1) is pushed down idler wheel (3-1), rolling
It takes turns (3-1) and is pushed action pin (3-2) by compression bar piece (3-3), another power supply circuit mesohigh vacuum circuit breaker (1) is caused to be closed
Lock Loop Contacts are opened, and another power supply circuit mesohigh vacuum circuit breaker (1) cannot be closed a floodgate；When needing to switch power supply,
The chassis locating rack of the high-pressure vacuum breaker (1) in high-voltage central-positioned switchgear cell will be in by chassis vehicle knob (7)
(6) it is pulled open from testing position or operating position, the action pin (3-2) of travel switch (3) restores to the original state, in another way power supply circuit
High-pressure vacuum breaker (1) closing circuit contact closure, another way power supply circuit start to power.
2. the anti-mistaken interlocking device that a kind of 10KV high-voltage central-positioned switchgear according to claim 1 supplies power with double circuit, special
Sign is that the chassis vehicle knob (7) is mounted on chassis locating rack (6) rear wall, is made of insulating material, chassis vehicle knob
(7) graininess protrusion is evenly distributed on.
3. the anti-mistaken interlocking device that a kind of 10KV high-voltage central-positioned switchgear according to claim 1 supplies power with double circuit, special
Sign is, a light bulb is respectively concatenated in the main power switch cabinet and accessory power supply switchgear power supply circuit, is gone here and there between two light bulbs
It is connected to a buzzer, when wherein power supply circuit is connected all the way, corresponding light bulb is lighted, and another light bulb extinguishes；Work as duplex feeding
Circuit simultaneously to transformer-supplied when, buzzer sounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510733633.8A CN105471081B (en) | 2015-10-30 | 2015-10-30 | A kind of anti-mistaken interlocking device that 10KV high-voltage central-positioned switchgear supplies power with double circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510733633.8A CN105471081B (en) | 2015-10-30 | 2015-10-30 | A kind of anti-mistaken interlocking device that 10KV high-voltage central-positioned switchgear supplies power with double circuit |
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| Publication Number | Publication Date |
|---|---|
| CN105471081A CN105471081A (en) | 2016-04-06 |
| CN105471081B true CN105471081B (en) | 2019-01-04 |
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| CN201510733633.8A Active CN105471081B (en) | 2015-10-30 | 2015-10-30 | A kind of anti-mistaken interlocking device that 10KV high-voltage central-positioned switchgear supplies power with double circuit |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565437B (en) * | 2017-10-17 | 2023-08-15 | 湖南长高森源电力设备有限公司 | Position monitoring device of switch cabinet grounding handcart |
| CN108882611B (en) * | 2018-07-27 | 2024-01-30 | 江苏银佳电气设备有限公司 | High-voltage submersible motor monitoring double-circuit switching cabinet |
| CN114821989A (en) * | 2022-03-23 | 2022-07-29 | 国网山东省电力公司惠民县供电公司 | Locking alarm device for isolation baffle of trolley switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633575A (en) * | 2013-12-12 | 2014-03-12 | 中国船舶重工集团公司第七〇四研究所 | Marine medium-voltage power distribution unit |
| CN204067990U (en) * | 2014-07-21 | 2014-12-31 | 昆山通用电气成套设备有限公司 | A kind of electrical interlock high voltage variable cabinet handcart |
| CN205178629U (en) * | 2015-10-30 | 2016-04-20 | 江苏银佳企业集团有限公司 | 10kV high pressure middle -arranged switch cabinet supplies power with double circuit prevents mistake interlock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201355594Y (en) * | 2008-11-27 | 2009-12-02 | 上海天灵开关厂有限公司 | Electric locking device |
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2015
- 2015-10-30 CN CN201510733633.8A patent/CN105471081B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633575A (en) * | 2013-12-12 | 2014-03-12 | 中国船舶重工集团公司第七〇四研究所 | Marine medium-voltage power distribution unit |
| CN204067990U (en) * | 2014-07-21 | 2014-12-31 | 昆山通用电气成套设备有限公司 | A kind of electrical interlock high voltage variable cabinet handcart |
| CN205178629U (en) * | 2015-10-30 | 2016-04-20 | 江苏银佳企业集团有限公司 | 10kV high pressure middle -arranged switch cabinet supplies power with double circuit prevents mistake interlock |
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