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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- time relay
- low
- voltage
- transformer
- automatic reclosing
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Abstract
本实用新型提供了一种变压器低压脱扣自动重合闸装置，包括时间继电器、空气开关，所述时间继电器包括第一时间继电器、第二时间继电器、第三时间继电器，空气开关与第一时间继电器、第二时间继电器、第三时间继电器依次串联，空气开关与电源连接，第二时间继电器连接低压总开关的信号控制电机，第三时间继电器连接低压总开关的合闸线圈。使用本实用新型所述的变压器低压脱扣自动重合闸装置，在变压器恢复送电时，带低压脱扣装置的低压总开关能自动重合闸；装置可以设置1～99秒延时，确保同一条线路上变压器所带用户可以在不同时刻恢复送电；在低压故障引起总开关跳闸后，自动重合闸装置不会启动，保证设备与人身安全。
The utility model provides an automatic reclosing device for transformer low-voltage tripping, which includes a time relay and an air switch. The time relay includes a first time relay, a second time relay, a third time relay, an air switch and the first time relay , the second time relay, and the third time relay are connected in series in sequence, the air switch is connected to the power supply, the second time relay is connected to the signal control motor of the low-voltage main switch, and the third time relay is connected to the closing coil of the low-voltage main switch. Using the transformer low-voltage tripping automatic reclosing device described in the utility model, when the transformer resumes power transmission, the low-voltage main switch with the low-voltage tripping device can automatically reclose; the device can set a delay of 1 to 99 seconds to ensure the same Users connected to the transformer on the line can resume power transmission at different times; after the main switch trips due to a low-voltage fault, the automatic reclosing device will not start, ensuring 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 |
Granted publication date: 20140416 Termination date: 20181024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |