CN205070273U - Grounding handcart of electric shutting - Google Patents
Grounding handcart of electric shutting Download PDFInfo
- Publication number
- CN205070273U CN205070273U CN201520894367.2U CN201520894367U CN205070273U CN 205070273 U CN205070273 U CN 205070273U CN 201520894367 U CN201520894367 U CN 201520894367U CN 205070273 U CN205070273 U CN 205070273U
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- electromagnetic lock
- cabinet
- little
- control
- shutting
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Abstract
The utility model discloses a grounding handcart of electric shutting, including the little generating line of control, the little switch of direct current, shutting electromagnetic lock return circuit and auxiliary relay, control the female order of just controlling of little generating line and connect the little switch of direct current even with shutting electromagnetic lock return circuit and to control the burden accuse of little generating line female, auxiliary relay connects in parallel with the electromagnetic lock return circuit that locks. Through adopting inlet wire cabinet and generating line segmentation cabinet circuit breaker auxiliary contact shutting grounding handcart, grounding handcart locks inlet wire and generating line again and segments the cabinet circuit breaker when operating position simultaneously, makes it close a floodgate, is showing the improvement security performance.
Description
Technical field
The utility model relates to a kind of earth handcart with electric blocking function, particularly a kind of 10KV middle-placed switch cabinet electric blocking earth handcart.
Background technology
Electric power system or power consumer, when 10KV middle-placed switch cabinet is safeguarded in power failure, usually can install earth connection additional, because 10KV middle-placed switch cabinet bus is closed, install earth connection additional very inconvenient on middle-placed switch cabinet bus.General employing, after PT handcart extracted out by PT cabinet, is shaken and is implemented ground connection into earth handcart, relatively convenient and swift.But fail safe seems particularly important.
Summary of the invention
The purpose of this utility model is to provide a kind of more reliable, simple electric blocking, even if staff's carelessness, also can ensure construction safety.
This practicality adopts following technical scheme: a kind of earth handcart of electric blocking, comprise and control little bus, direct current P cock, locking electromagnetic lock loop and auxiliary relay, mother's direct current P cock that is linked in sequence of just controlling of the little bus of described control connects and locking electromagnetic lock loop and control the negative control mother of little bus, and described auxiliary relay is in parallel with locking electromagnetic lock loop.
Further, described locking electromagnetic lock loop comprises drawing of being linked in sequence from bus section cabinet and the circuit breaker auxiliary contact that draws from bus incoming line cabinet, and locking electromagnetic lock.
Further, described auxiliary relay comprises to the normally closed contact of incoming line cabinet closing locking and the normally closed contact to segmentation closing locking.
The utility model has following beneficial effect: by adopting incoming line cabinet and bus section cabinet breaker auxiliary contact locking earth handcart, simultaneously earth handcart locking inlet wire and bus section cabinet breaker again when service position, make it not close a floodgate, significantly improve security performance.
Accompanying drawing explanation
Fig. 1 is the earth handcart locking electronic schematic diagram of electric blocking of the present utility model
Fig. 2 is the utility model inlet wire and segment circuit device closing locking electronic schematic diagram
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is further described; but protection range of the present utility model is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the utility model; without the conversion that creative work obtains, all should be encompassed in the utility model protection range.
As shown in the figure, control little bus just controlling mother 1 and bearing control female 2 by direct current P cock 3 for locked loop is powered, draw after this bus incoming line cabinet circuit breaker auxiliary contact 4 and the series connection of segmentation cabinet breaker auxiliary contact 5, be connected with the locking electromagnetic lock 6 in earth handcart, when can ensure to only have incoming line cabinet and segmentation cabinet breaker to be in gate-dividing state so simultaneously, locking electromagnetic lock 6 in earth handcart could be energized action, ensure that earth handcart now just can push or shake and enter service position, implement busbar grounding measure.When earth handcart is in service position, its service position auxiliary contact 7 is conductings, and auxiliary relay 8 is energized action, and the normally closed contact of auxiliary relay 8 disconnects, and incoming line cabinet circuit breaker is different with segmentation cabinet breaker closing circuit, cannot close a floodgate.
When the earth handcart of busbar voltage mutual inductance cabinet is not in service position, could be energized between incoming line cabinet circuit breaker and segmentation cabinet breaker closing circuit combined floodgate, bus incoming line cabinet circuit breaker auxiliary contact 4 and the locking simultaneously of segmentation cabinet breaker auxiliary contact 5, earth handcart pushes or shakes and enters service position.
Claims (3)
1. the earth handcart of an electric blocking, comprise and control little bus, direct current P cock, locking electromagnetic lock loop and auxiliary relay, it is characterized in that: mother's direct current P cock that is linked in sequence of just controlling of the little bus of described control connects and locking electromagnetic lock loop and control the negative control mother of little bus, and described auxiliary relay is in parallel with locking electromagnetic lock loop.
2. the earth handcart of a kind of electric blocking according to claim 1, is characterized in that: described locking electromagnetic lock loop comprises drawing of being linked in sequence from bus section cabinet and the circuit breaker auxiliary contact that draws from bus incoming line cabinet, and locking electromagnetic lock.
3. the earth handcart of a kind of electric blocking according to claim 1, is characterized in that: described auxiliary relay comprises to the normally closed contact of incoming line cabinet closing locking and the normally closed contact to segmentation closing locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894367.2U CN205070273U (en) | 2015-11-10 | 2015-11-10 | Grounding handcart of electric shutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520894367.2U CN205070273U (en) | 2015-11-10 | 2015-11-10 | Grounding handcart of electric shutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205070273U true CN205070273U (en) | 2016-03-02 |
Family
ID=55396782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520894367.2U Active CN205070273U (en) | 2015-11-10 | 2015-11-10 | Grounding handcart of electric shutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205070273U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958359A (en) * | 2016-06-14 | 2016-09-21 | 国网山东省电力公司青岛供电公司 | Lockout circuit for PT cabinet grounding handcart |
| CN114122761A (en) * | 2021-11-30 | 2022-03-01 | 国网江苏省电力有限公司镇江供电分公司 | Transformer busbar grounding device |
-
2015
- 2015-11-10 CN CN201520894367.2U patent/CN205070273U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958359A (en) * | 2016-06-14 | 2016-09-21 | 国网山东省电力公司青岛供电公司 | Lockout circuit for PT cabinet grounding handcart |
| CN114122761A (en) * | 2021-11-30 | 2022-03-01 | 国网江苏省电力有限公司镇江供电分公司 | Transformer busbar grounding device |
| CN114122761B (en) * | 2021-11-30 | 2024-06-04 | 国网江苏省电力有限公司镇江供电分公司 | Transformer busbar grounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |