CN202534611U - Automatic local switching-off device of high-voltage switch - Google Patents
Automatic local switching-off device of high-voltage switch Download PDFInfo
- Publication number
- CN202534611U CN202534611U CN201220090886XU CN201220090886U CN202534611U CN 202534611 U CN202534611 U CN 202534611U CN 201220090886X U CN201220090886X U CN 201220090886XU CN 201220090886 U CN201220090886 U CN 201220090886U CN 202534611 U CN202534611 U CN 202534611U
- Authority
- CN
- China
- Prior art keywords
- voltage switch
- power supply
- time relay
- contactor
- switch gear
- 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 - Lifetime
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Abstract
The utility model discloses an automatic local switching-off device of a high-voltage switch, comprising a power supply positive end, a power supply negative end, a time relay, a contactor and a switch. The switch and a coil of the time relay are connected between the power supply positive end and the power supply negative end after being connected in series, a normally open contact of the time relay and a coil of the contactor are connected between the power supply positive end and the power supply negative end after being connected in series, and the normally open contact of the time relay is connected to a switching-off circuit of the high-voltage switch in series. The automatic local switching-off device of the high-voltage switch in the utility model is capable of automatically short-circuiting the switching-off circuit of the high-voltage switch at regular time through the time relay, and the high-voltage switch can be locally and automatically switched off in an unmanned and safe manner.
Description
Technical field
The utility model relates to trip device, is specifically related to a kind of trip device on the spot automatically of high-voltage switch gear.
Background technology
In the power supply, when needs had a power failure, power failure mode normally was that the staff uses remote control to control disconnection high-voltage switch gear (claiming primary cut-out again) in the distance; But when remote control is malfunctioning, will change into the staff on the spot (promptly closely) manually break off high-voltage switch gear, be about to the high-voltage switch gear separating brake; The positive supply that also is about to high-voltage switch gear is connected with the outlet pressing plate, and sub-gate circuit is communicated with, if the switch blast takes place this moment; Then very dangerous, even threat to life.
The utility model content
The utility model technical problem to be solved just provides the trip device on the spot automatically of the high-voltage switch gear of a kind of safety, automatic brake separating.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is following:
A kind of trip device on the spot automatically of high-voltage switch gear; Comprise: power positive end, power supply negative terminal, the time relay, contactor and switch; Said switch is connected with the coil of the time relay between the positive and negative two ends of access power supply, back; The normally opened contact of the said time relay is connected with the coil of contactor between the positive and negative two ends of access power supply, back, and the normally opened contact of said contactor is connected on the sub-gate circuit of high-voltage switch gear.The time relay is regularly connected the sub-gate circuit of high-voltage switch gear through contactor, thus automatic disconnection high-voltage switch gear on the spot.
Compared with prior art, the utlity model has following advantage:
This trip device can be through time relay timing automatic short circuit high-voltage switch gear sub-gate circuit, realized unmanned, safety, automatic disconnection high-voltage switch gear on the spot.
Description of drawings
Fig. 1 is the connection sketch map of the utility model.
Embodiment
Automatically the trip device on the spot of a kind of high-voltage switch gear as shown in Figure 1; It comprises: power positive end, power supply negative terminal, the time relay, contactor and K switch 1; The time relay, contactor are installed in the housing; K switch 1 is connected with the coil KT of the time relay between the positive and negative two ends of access power supply, back, and the normally opened contact KT1 of the time relay connects with the coil KM of contactor between the positive and negative two ends of access power supply, back, and the normally opened contact KM1 of contactor is connected on the sub-gate circuit of high-voltage switch gear.Wherein, the positive and negative termination of power supply is gone into external power source, is used for the time relay and contactor power supply; The time relay is the time relay of adjustable delay time; The time relay is regularly connected the sub-gate circuit of high-voltage switch gear through contactor, thus automatic disconnection high-voltage switch gear on the spot.
When need having a power failure, the normally opened contact KM1 two ends of contactor are connected on respectively on positive supply and the outlet pressing plate in the high-voltage switch gear sub-gate circuit through lead, the normally opened contact KM1 that is about to contactor is serially connected on the high-voltage switch gear sub-gate circuit; Regulate the delay time of the time relay; And close switch K1, this moment, the staff can use remote control to control the disconnection high-voltage switch gear in the distance, if remote control is malfunctioning; Then the time relay is after delay time arrives; With the normally opened contact KT1 of the auto-closing time relay, make the coil KM energising of contactor, the normally opened contact KM1 adhesive of contactor is connected; Thereby short circuit high-voltage switch gear sub-gate circuit realizes breaking off automatically, safely high-voltage switch gear.
The execution mode of the utility model is not limited thereto; Foregoing according to the utility model; Utilize the ordinary skill knowledge and the customary means of this area; Do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite, the utility model can also be made modification, replacement or the change of other various ways, all drops within the utility model rights protection scope.
Claims (1)
1. the trip device on the spot automatically of a high-voltage switch gear; It is characterized in that comprising: power positive end, power supply negative terminal, the time relay, contactor and switch; Said switch is connected with the coil of the time relay between the positive and negative two ends of access power supply, back; The normally opened contact of the said time relay is connected with the coil of contactor between the positive and negative two ends of access power supply, back, and the normally opened contact of said contactor is connected on the sub-gate circuit of high-voltage switch gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220090886XU CN202534611U (en) | 2012-03-12 | 2012-03-12 | Automatic local switching-off device of high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220090886XU CN202534611U (en) | 2012-03-12 | 2012-03-12 | Automatic local switching-off device of high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534611U true CN202534611U (en) | 2012-11-14 |
Family
ID=47135774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220090886XU Expired - Lifetime CN202534611U (en) | 2012-03-12 | 2012-03-12 | Automatic local switching-off device of high-voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655988A (en) * | 2014-12-02 | 2016-06-08 | 国家电网公司 | Charging protection circuit of transformer station |
-
2012
- 2012-03-12 CN CN201220090886XU patent/CN202534611U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655988A (en) * | 2014-12-02 | 2016-06-08 | 国家电网公司 | Charging protection circuit of transformer station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |