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Emergency power supply automatic switch-in device

A technology of automatic input and backup power supply, which is applied in the direction of circuit devices, emergency power supply arrangements, electrical components, etc., can solve the problems of affecting work efficiency, affecting the normal use of devices, wasting manpower and material resources, etc., and achieves improving work efficiency, simple structure, and solution The effect of false movement and refusal to move

Active Publication Date: 2016-06-22
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main problems at the current stage of the backup power self-input input device are: the self-injection device judges that the circuit breaker has not tripped, so the backup power input device refuses to operate; if the voltage secondary circuit is abnormal and the voltage transformer loses voltage for the second time, the backup The power automatic input device judges that the incoming line is out of voltage, which leads to the malfunction of the backup power automatic input device
[0004] The refusal and malfunction of the backup power automatic input device will affect the normal use of the device, affect work efficiency, and waste manpower and material resources

Method used

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  • Emergency power supply automatic switch-in device
  • Emergency power supply automatic switch-in device

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 As shown, it is a schematic diagram of a backup power automatic input device. The No. 1 incoming line of the backup power automatic input device is connected to the first circuit breaker 1DL, and the No. 2 incoming line is connected to the second circuit breaker 2DL. The two circuit breakers 2DL are connected through the third circuit breaker 3DL, and the voltage transformer U X1 Connected to the input terminal of the first circuit breaker 1DL, the voltage transformer U X2 Connected to the input end of the second circuit breaker 2DL, No. 1 transformer is provided between the first circuit breaker 1DL and the third circuit breaker 3DL, and No. 2 transformer is provided between the second circuit breaker 2DL and the third circuit breaker 3DL.

[0022] In normal mode, No. 1 incoming line is running, and No. 2 in...

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PUM

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Abstract

The invention discloses an emergency power supply automatic switch-in device, which relates to the technical field of electricity grids. By means of introducing a pair of input quantities reflecting position of a 1DL circuit breaker, a failed-to-act phenomenon of the automatic switch-in device is solved; by means of introducing a second group of voltage, a misoperation phenomenon of the automatic switch-in device is solved; structure is simple, adding a set of emergency power supply switch-in device in addition is avoided, doubling functions are realized on one set of emergency power supply automatic switch-in device, problems of misoperation and failed-to-act phenomenon of the emergency power supply switch-in device are solved effectively, time and labor are saved, and working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of power grid backup power supply. Background technique [0002] In the power grid, a single power supply is widely used for power supply. When the power supply fails and cannot supply power normally, the method of automatically switching to another backup power supply is called the backup power automatic input device. [0003] The main problems at the current stage of the backup power self-input input device are: the self-injection device judges that the circuit breaker has not tripped, so the backup power input device refuses to operate; if the voltage secondary circuit is abnormal and the voltage transformer loses voltage for the second time, the backup The power automatic input device judges that the incoming line loses voltage, which in turn causes the backup power automatic input device to malfunction. [0004] The refusal and malfunction of the backup power automatic input device will affect the norm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/061Y02B70/30Y04S20/20
Inventor 王鹏张洪铭胡孜涵唐楠
Owner STATE GRID CORP OF CHINA
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