CN207250941U - A kind of high voltage power distributing cabinet and busbar electric interlocking installation - Google Patents
A kind of high voltage power distributing cabinet and busbar electric interlocking installation Download PDFInfo
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- CN207250941U CN207250941U CN201721143603.2U CN201721143603U CN207250941U CN 207250941 U CN207250941 U CN 207250941U CN 201721143603 U CN201721143603 U CN 201721143603U CN 207250941 U CN207250941 U CN 207250941U
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- iron core
- electromagnetic induction
- induction device
- cabinet
- electric
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Abstract
A kind of high voltage power distributing cabinet and busbar electric interlocking installation, applied to let-down stations totally enclosed type power distribution cabinet whole interruption maintenance, it is characterized in that an electromagnetic induction device is installed on the downside of the trackwork location criteria line of mother cabinet, the electromagnetic induction device is iron core and the coil being wound on iron core composition, a relay is respectively mounted in all incoming call sides, normally closed contact L1, L2 inside grounding trolley are connected, it is electricly electric, iron core in electromagnetic induction device is subject to excitation effect to upspring, and stops that the trolley of related branch enters operating position.The utility model can effectively avoid the accident that the powered generating system ground connection personnel of power distribution cabinet busbar get an electric shock.
Description
Technical field
The combination of grounding measures when the utility model is applied to let-down stations totally enclosed type power distribution cabinet whole interruption maintenance joins
Lock, effectively prevents the electric interlock and reminding alarm device of the anti-power transmission of possibility of power distribution cabinet various aspects.
Background technology
Large-scale substation is equipped with large-scale substation and its facility in the enterprises such as steel, chemical industry, coking, power supply, is passed through
10KV (35KV 66KV etc.) power distribution cabinet is totally-enclosed cabinet after transforming for many years, with the increase of technology content, cost reduction it is same
When, cause peace to arrange visualization to reduce, be difficult to control, there is very big security risk, it is necessary to which multiple, highly reliable safety is arranged
Apply interlocking.
The content of the invention
For the safety of service personnel, the utility model provides a kind of high voltage power distributing cabinet for preventing that each side from sending a telegram here during maintenance
And busbar electric interlocking installation.
The utility model is vacated rear grounding trolley by PT cabinets and is entered so that power distribution cabinet high-pressure side is grounded, then will ground connection
Trolley secondary plug connects power distribution cabinet electric interlock socket, short circuit（L1-L2）, connect interlock system, two group relays（1\2\3\
4SJ to 123 4LS）Successive fax is passed, start prevent iron core (1 23 4ZZ) excitation actuating, card hand of stumbling car to working position
The advance track put, related branch can only cannot enter running position in the work of experiment position, it is therefore an objective to prevent each of power distribution cabinet
A mains side, that is, main transformer secondary side, mother side, change side used（Anti- power transmission）, dual power supply user side（Anti- power transmission）Even contact line side
（Anti- power transmission）Run to the track of operating position, the accident for causing the powered generating system ground connection personnel of power distribution cabinet busbar to get an electric shock, together
Shi Qidong concatenate into background apparatus contact, warning indicator light with from the background and meanwhile prompt operations staff that those equipment cannot enter
Operating position, avoids malfunction, maloperation.
Technical solutions of the utility model：A kind of high voltage power distributing cabinet and busbar electric interlocking installation, it is characterized in that in mother cabinet
Trackwork location criteria line on the downside of one electromagnetic induction device of installation, the electromagnetic induction device is iron core and is wound on iron core
On coil composition, be respectively mounted a relay in all incoming call sides, normally closed contact L1-L2 inside grounding trolley connected, electricity
It is so incensed that electric, the iron core in electromagnetic induction device is subject to excitation effect to upspring, and stops that the trolley of related branch enters operating position.Together
Shi Qidong concatenate into background apparatus contact, warning indicator light.
The utility model has following beneficial effects：
1st, the utility model can effectively avoid the accident that the powered generating system ground connection personnel of power distribution cabinet busbar get an electric shock, and open at the same time
It is dynamic concatenate into background apparatus contact, warning indicator light, prompt operations staff which equipment to enter operating position, avoid
Malfunction, maloperation；
2nd, related branch can only cannot enter running position in the work of experiment position, prevent each mains side of power distribution cabinet i.e.
Main transformer secondary side, mother side, change side used（Anti- power transmission）, dual power supply user side（Anti- power transmission）Even contact line side（Anti- power transmission）Extremely
The track operation of operating position；
3rd, the electric interlocking installation that each side is sent a telegram here is prevented during the maintenance of 10KV (35KV 66KV) power distribution cabinet, effectively prevents to miss
Operation, has high security implications for field control, one of impassable security perimeter is added to closed power distribution cabinet,
Principle of low cost is simple, promotional value and the safe mass for greatly improving overhaul of the equipments, and safety is provided for extensive maintenance
Ensure, to prevent personnel's injury, there is very big social effect.
Brief description of the drawings
Fig. 1 is the wiring diagram of the utility model.
In figure, 1SJ, 2SJ, 3SJ, 4SJ are 4 relays respectively,
ZZ1, ZZ2, ZZ3, ZZ4 are 4 electromagnetic induction devices respectively,
XH1, XH2, XH3, XH4 are 4 signal lamps respectively,
The model of on-site signal dispensing device in figure is DZB-127 model relays, and manufacturer is Zhejiang along power on unit
Ah's relay joint-stock company of Co., Ltd.
Embodiment
The utility model is that an electromagnetic induction dress is installed on the downside of the trackwork location criteria line by existing mother cabinet
To put, the electromagnetic induction device is iron core and the coil being wound on iron core composition, and a relay is respectively mounted in all incoming call sides,
Normally closed contact L1-L2 inside grounding trolley is connected, electricly electric, the iron core in electromagnetic induction device is subject to excitation to act on bullet
Rise, stop that the trolley of related branch enters operating position.At the same time start concatenate into background apparatus contact, warning indicator light.
Shown in Fig. 1, laying sectional area 4*1.5mm is discharged2The copper core cable being consistent with physical length, successively by some correlations
The coil of intermediate relay in branch（1SJ 2SJ 3SJ 4SJ or ... n）Be connected in series, the L1-L2 of PT cabinet socket bases is
Prescribing, inserting terminal L1-L2 is close point in grounding trolley,（1SJ\2SJ\3SJ\4SJ）Inside, which has, to be prescribed and is serially connected in accordingly
Prevent relay（ZZ1\ ZZ2\ ZZ3\ ZZ4）Line bag circuit between, use DC power supply.When grounding trolley secondary plug is inserted
Enter to cause after PT cabinet Secondary sockets L1-L2 points to connect, interlock circuit obtain it is electric, "+pole → L1 → L2 →（1SJ→2SJ→3SJ→
4SJ）Excitation actuating is corresponding respectively for →-pole "（1SJ\2SJ\3SJ\4SJ）Prescribe closure so that（ZZ1\ ZZ2\ ZZ3\ ZZ4）
Line Bao get electricity, excitation actuating, prevents iron core from upspringing, and stumbles branch trolley, the success of locking working track.（1XH\2XH\3XH\
4XH）Signal lamp is bright, and on-site signal device, which starts to automation backstage, sends signal prompt as value operations staff.
The operation principle of the utility model：Start cathode → L1-L2 → 1SJ → 2SJ → 3SJ → 4SJ → anode, coil is encouraged
Magnetic, then the normally closed point closure of 1SJ, 2SJ, 3SJ, 4SJ, connects actuating coil energized circuit ZZ1, ZZ2, ZZ3, coil magnetization
Iron core in circuit is subject to excitation effect to upspring, and the iron core upspring blocks correlation as prevention object on the normal line of operating position
The trolley of branch enters operating position.
Claims (1)
1. a kind of high voltage power distributing cabinet and busbar electric interlocking installation, it is characterized in that under the trackwork location criteria line of mother cabinet
An electromagnetic induction device is installed in side, and the electromagnetic induction device is iron core and the coil being wound on iron core composition, all next
Electric side is respectively mounted a relay, and normally closed contact L1, L2 inside grounding trolley are connected, electricly electric, in electromagnetic induction device
Iron core be subject to excitation effect to upspring, stop that the trolley of related branch enters operating position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143603.2U CN207250941U (en) | 2017-09-07 | 2017-09-07 | A kind of high voltage power distributing cabinet and busbar electric interlocking installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143603.2U CN207250941U (en) | 2017-09-07 | 2017-09-07 | A kind of high voltage power distributing cabinet and busbar electric interlocking installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207250941U true CN207250941U (en) | 2018-04-17 |
Family
ID=61887476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721143603.2U Active CN207250941U (en) | 2017-09-07 | 2017-09-07 | A kind of high voltage power distributing cabinet and busbar electric interlocking installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207250941U (en) |
-
2017
- 2017-09-07 CN CN201721143603.2U patent/CN207250941U/en active Active
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