CN206211360U - JP cabinet current misdelivery proof devices - Google Patents
JP cabinet current misdelivery proof devices Download PDFInfo
- Publication number
- CN206211360U CN206211360U CN201621305695.5U CN201621305695U CN206211360U CN 206211360 U CN206211360 U CN 206211360U CN 201621305695 U CN201621305695 U CN 201621305695U CN 206211360 U CN206211360 U CN 206211360U
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- CN
- China
- Prior art keywords
- breaker
- relay
- long
- cabinets
- range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a kind of JP cabinets current misdelivery proof device, belong to device for preventing unwanted operation field, including relay, the coil of relay is connected with button switch and auxiliary contacts of circuit breaker and is sequentially connected in series into loop, the long-range sub-switching operation contact of breaker is connected to the long-range separating brake common junction of breaker by the normally opened contact of relay, even if personnel close by mistake the branch breaker that is overhauling can not power transmission success, provide one safety guarantee to the maintenance of JP cabinets branch road.
Description
Technical field
The utility model provides a kind of JP cabinets current misdelivery proof device, belongs to device for preventing unwanted operation field.
Background technology
, used as user oriented terminal power grid, with its Rapid Expansion, network structure is increasingly complicated, distribution for low-voltage network
Net failure is inevitable, and because the accident that interruption maintenance mistiming power transmission triggers happens occasionally.JP cabinets in low-voltage power distribution station area are just
There are 3 circuit breakers in the case of often, to reduce power failure range, in normal service branch road, without disconnecting total input-wire disconnecting link, such as because of inspection
The personnel general idea of repairing forgets locker door, it may occur that personnel's misdelivery electricity causes accident of human electric shock；So, study a set of anti-misdelivery
Electric installation can be prevented effectively from the generation of such accident.
Utility model content
The utility model purpose is to provide a kind of JP cabinets current misdelivery proof device, even if personnel close the branch road for overhauling by mistake
Breaker can not power transmission success, to JP cabinets branch road maintenance provide one safety guarantee.
JP cabinets current misdelivery proof device described in the utility model, including relay, the coil of relay and button switch and
Auxiliary contacts of circuit breaker series connection is sequentially connected in series into loop, the normally opened contact that the long-range sub-switching operation contact of breaker passes through relay
It is connected to the long-range separating brake common junction of breaker.
The utility model has the beneficial effect that compared with prior art：
Described JP cabinet current misdelivery proof devices, with reference to the auxiliary contact of breaker, install an AC relay additional, using even
Lock principle is carried out carrying out locking to closing function, and the device is started when branched line is overhauled, and board turning (maintenance word is done outside case
Sample) indicate, even if personnel closes by mistake the branch breaker that is overhauling can not power transmission success, to one of JP cabinets branch road maintenance offer
Safety guarantee, it is to avoid personal injury occur.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure：1st, auxiliary contacts of circuit breaker；2nd, button switch；3rd, the coil of relay；4th, relay；5th, relay is normal
Open contact；6th, the long-range sub-switching operation contact of breaker；7th, the long-range separating brake common junction of breaker；8th, auxiliary contacts of circuit breaker
Common port.
Specific embodiment
The utility model embodiment is described further with reference to the utility model：
Embodiment 1：As shown in figure 1, JP cabinets current misdelivery proof device described in the utility model, including relay 4, relay
4 is AC relay, and one end of coil 3 of relay is connected to auxiliary contacts of circuit breaker 1, other end connection by button switch 2
The series connection of common port 8 to auxiliary contacts of circuit breaker is sequentially connected in series into loop, and the long-range sub-switching operation contact 6 of breaker passes through relay
The normally opened contact 5 of device is connected to the long-range separating brake common junction 7 of breaker.
Operating procedure and operation principle：
When JP cabinet branch lines need maintenance, " button switch 2 " corresponding to the branched breaker, button switch 2 are closed
Switch with auto-lock function, now breaker disjunction into guard mode, and indicates " overhauling " in the outer board turning of cabinet.
When there is personnel's falsely close circuit breaker,
1. auxiliary contacts of circuit breaker 1 sends the remote signals of displacement, contact conducting；
2. relay driving coil constitutes closed-loop path, is powered；
3. relay normally open contact is closed；
4. breaker " long-range separating brake " signal is effective；
5. breaker open operation；
6. the disjunction of auxiliary contacts of circuit breaker 1；
7. relay coil dead electricity；
8. relay contact is separated；
9. breaker " long-range separating brake " invalidating signal.
By above step, the device completes a protection act.When the maintenance of JP cabinets branched line is finished, the branch line is separated
" button switch 2 " corresponding to breaker, manual closing operation breaker completes power transmission.
Claims (1)
1. a kind of JP cabinets current misdelivery proof device, it is characterised in that including relay (4), the coil (3) and button switch of relay
(2) connect and be sequentially connected in series into loop with auxiliary contacts of circuit breaker (1), the long-range sub-switching operation contact (6) of breaker is by relay
The normally opened contact (5) of device is connected to the long-range separating brake common junction (7) of breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305695.5U CN206211360U (en) | 2016-11-30 | 2016-11-30 | JP cabinet current misdelivery proof devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305695.5U CN206211360U (en) | 2016-11-30 | 2016-11-30 | JP cabinet current misdelivery proof devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211360U true CN206211360U (en) | 2017-05-31 |
Family
ID=58754557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621305695.5U Expired - Fee Related CN206211360U (en) | 2016-11-30 | 2016-11-30 | JP cabinet current misdelivery proof devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211360U (en) |
-
2016
- 2016-11-30 CN CN201621305695.5U patent/CN206211360U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20211130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |