CN203553882U - Transformer low-voltage tripping automatic reclosing device - Google Patents
Transformer low-voltage tripping automatic reclosing device Download PDFInfo
- Publication number
- CN203553882U CN203553882U CN201320655673.1U CN201320655673U CN203553882U CN 203553882 U CN203553882 U CN 203553882U CN 201320655673 U CN201320655673 U CN 201320655673U CN 203553882 U CN203553882 U CN 203553882U
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- China
- Prior art keywords
- time relay
- low
- voltage
- time
- transformer
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- 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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- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides a transformer low-voltage tripping automatic reclosing device. The device comprises time relays and an air switch, wherein the time relays comprise a first time delay, a second time delay and a third time delay; the air switch is in series connection with the first time relay, the second time relay and the third time relay in turn; the air switch is connected with a power supply; the second time delay is connected with a signal control motor of a low-voltage main switch; and the third time delay is connected with a closing coil of the low-voltage main switch. With utilization of the transformer low-voltage tripping automatic reclosing device provided by the utility model, a low-voltage master switch with a low-voltage tripping device can automatically recloses when power supply of a transformer resumes; a delay of 1 to 99 seconds of the device can be set, thus to ensure that power supply is resumed at different time for users served by the transformer on the same line; and when the master switch trips because of low-voltage failure, the automatic reclosing device does not start, so as to ensure equipment and personal safety.
Description
Technical field
The utility model relates to a kind of power equipment closing device, especially a kind of transformer low voltage dropout auto recloser.
Background technology
The voltage of sending when transformer is during lower than 70% rated voltage, and release can be threaded off automatically, disconnects low pressure master switch, and the electric equipment below protection master switch or load appliance are avoided the damage of under voltage.Also effectively prevent that transformer from recovering after power transmission, all subscriber equipmenies start simultaneously simultaneously.Cause circuit instantaneous overload, threaten power grid security.
But, after voltage is normal, need repair personnel to the master switch closing by hand with low pressure trip device.The human input that manual closing operation is required and fund input are very large, and efficiency is very low, causes interruption duration long, cause being discontented with of user.
Summary of the invention
The purpose of this utility model is to provide a kind of transformer low voltage dropout auto recloser, when transformer recovers power transmission, with the low pressure master switch energy automatic reclosing of low pressure trip device, can effectively alleviate distribution center's repairing pressure, shorten client's interruption duration, promote electric company's good service level.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows: transformer low voltage dropout auto recloser, comprise the time relay, air switch, it is characterized in that: the described time relay comprises very first time relay, second time relay, the 3rd time relay, air switch and very first time relay, second time relay, the 3rd time relay is connected successively, air switch is connected with power supply, second time relay connects the signal control motor of low pressure master switch, the 3rd time relay connects the closing coil of low pressure master switch.
Beneficial effect:
Use transformer low voltage dropout auto recloser described in the utility model, when transformer recovers power transmission, with the low pressure master switch energy automatic reclosing of low pressure trip device; Device can arrange time delay in 1 ~ 99 second, guarantees that on same circuit, user that transformer is with can not recover power transmission in the same time; In low voltage failure, cause that after master switch tripping operation, auto recloser can not start, assurance equipment and personal safety.
Accompanying drawing explanation
Fig. 1 is block diagram of the present utility model.
Embodiment
The utility model transformer low voltage dropout auto recloser as shown in Figure 1, comprise the time relay, air switch, the described time relay comprises very first time relay, second time relay, the 3rd time relay, air switch is connected successively with very first time relay, second time relay, the 3rd time relay, air switch is connected with power supply, second time relay connects the signal control motor of low pressure master switch, and the 3rd time relay connects the closing coil of low pressure master switch.
Air switch control device drops into and moves back throwing, very first time relay control device delayed startup, the second time relay control energy storage signal, the 3rd time relay control switching signal.
Claims (1)
1. transformer low voltage dropout auto recloser, comprise the time relay, air switch, it is characterized in that: the described time relay comprises very first time relay, second time relay, the 3rd time relay, air switch is connected successively with very first time relay, second time relay, the 3rd time relay, air switch is connected with power supply, second time relay connects the signal control motor of low pressure master switch, and the 3rd time relay connects the closing coil of low pressure master switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655673.1U CN203553882U (en) | 2013-10-24 | 2013-10-24 | Transformer low-voltage tripping automatic reclosing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655673.1U CN203553882U (en) | 2013-10-24 | 2013-10-24 | Transformer low-voltage tripping automatic reclosing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553882U true CN203553882U (en) | 2014-04-16 |
Family
ID=50471951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320655673.1U Expired - Fee Related CN203553882U (en) | 2013-10-24 | 2013-10-24 | Transformer low-voltage tripping automatic reclosing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203553882U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026424A (en) * | 2017-04-01 | 2017-08-08 | 国网浙江台州市黄岩区供电公司 | A kind of distribution low-voltage master switch automatic time delay closing device |
| CN109038479A (en) * | 2018-08-23 | 2018-12-18 | 国网河北省电力有限公司沧州供电分公司 | Over-pressure safety device |
| CN113078034A (en) * | 2021-04-26 | 2021-07-06 | 福建工程学院 | Household air switch device capable of automatically switching on after tripping and control method |
-
2013
- 2013-10-24 CN CN201320655673.1U patent/CN203553882U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026424A (en) * | 2017-04-01 | 2017-08-08 | 国网浙江台州市黄岩区供电公司 | A kind of distribution low-voltage master switch automatic time delay closing device |
| CN109038479A (en) * | 2018-08-23 | 2018-12-18 | 国网河北省电力有限公司沧州供电分公司 | Over-pressure safety device |
| CN113078034A (en) * | 2021-04-26 | 2021-07-06 | 福建工程学院 | Household air switch device capable of automatically switching on after tripping and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20181024 |