CN203553882U - Transformer low-voltage tripping automatic reclosing device - Google Patents

Transformer low-voltage tripping automatic reclosing device Download PDF

Info

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
Authority
CN
China
Prior art keywords
time relay
low
voltage
time
transformer
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
Application number
CN201320655673.1U
Other languages
Chinese (zh)
Inventor
李赫名
何光勤
周胜刚
刘建功
李成龙
刘雅娜
陈美琳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHIYAN POWER SUPPLY Co OF HUBEI ELECTRIC POWER Corp
State Grid Corp of China SGCC
Original Assignee
SHIYAN POWER SUPPLY Co OF HUBEI ELECTRIC POWER Corp
State Grid Corp of China SGCC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHIYAN POWER SUPPLY Co OF HUBEI ELECTRIC POWER Corp, State Grid Corp of China SGCC filed Critical SHIYAN POWER SUPPLY Co OF HUBEI ELECTRIC POWER Corp
Priority to CN201320655673.1U priority Critical patent/CN203553882U/en
Application granted granted Critical
Publication of CN203553882U publication Critical patent/CN203553882U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Transformer low voltage dropout auto recloser
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.
CN201320655673.1U 2013-10-24 2013-10-24 Transformer low-voltage tripping automatic reclosing device Expired - Fee Related CN203553882U (en)

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 (2)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN201733058U (en) Universal breaker power-on automatic switching on device
CN203553882U (en) Transformer low-voltage tripping automatic reclosing device
CN201549868U (en) Low-voltage switch intelligent controller
CN205123236U (en) Distribution lines protection device
CN203747436U (en) Distributed photovoltaic power generation access system
CN203434597U (en) Motor overheating delay protection self-lock device
CN204190360U (en) A kind of distribution transformer low pressure overload intelligent protection device
CN201717670U (en) Dual-power-supply switching device with overvoltage protection
CN204131081U (en) A kind of automatic reclosing low-voltage circuit breaker
CN109921325B (en) Switch cabinet closing locking loop
CN203071647U (en) Low-voltage switch cabinet automatic input and recovery device
CN203434594U (en) Motor overheating delay protection device
CN203014354U (en) Circuit for controlling auxiliary device of large units
CN203423474U (en) Automatic closing controller
CN201797299U (en) Reverse-power relay
CN205564643U (en) Ac contactor trouble outage circular telegram is from start control circuit
CN204103785U (en) Silicon rectifier draw-gear
CN204834537U (en) Automatic device that closes a floodgate of omnipotent circuit breaker of low pressure
CN203387199U (en) Generator synchronization grid connected automatic apparatus
CN204681069U (en) A kind of distribution low-voltage air switching device with auto-reset function
CN202268680U (en) Automatic switching device for electric motor fuse
CN204314645U (en) A kind of low-voltage distribution system by screen break-make automaton
CN204068206U (en) The control device of steam turbine jumped by a kind of generator connection
CN103532221A (en) Spare-power automatic switching implementation method of lines under wiring and operating modes of self-adaptive 330kV substation
CN203387397U (en) Soft starting circuit structure of large-power photovoltaic inverter auxiliary power supply

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