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Interphase short circuit processing device

A technology of phase-to-phase short circuit and processing device, which is applied in the direction of emergency protection circuit device, short circuit test, electrical components, etc., can solve the problems of inaccurate positioning, untimely, affecting power supply quality, etc., achieve optimal control, improve speed and quality Effect

Active Publication Date: 2021-11-12
BAODING YUXIN ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, there are problems such as cumbersome operation, untimely, and inaccurate positioning in the treatment of phase-to-phase short-circuit faults in the power supply system, which affect the quality of power supply

Method used

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  • Interphase short circuit processing device

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Embodiment Construction

[0068] Below in conjunction with accompanying drawing, the present invention will be further described by specific embodiment:

[0069] Such as figure 1 As shown, the power supply system has a power supply, a bus bar, and a number of ABC three-phase outgoing lines separated from the bus bar. This interphase short-circuit processing device includes a first switch group 1, a second switch group 2 and a three-phase circuit breaker 3. The three-phase circuit breaker 3 is arranged on each outgoing line and is the first circuit breaker on the outgoing line for connecting The busbar and outgoing ABC three-phase. The first switch group 1 includes two single-phase switches. The two single-phase switches of the first switch group are respectively connected to any two phases of the busbar and the ABC three-phase outgoing line, and can short-circuit two phases of the three-phase circuit breaker 3 . The second switch group 2 includes two single-phase switches, and the two single-phase sw...

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Abstract

The invention discloses an interphase short circuit processing device which comprises a three-phase circuit breaker, a first switch group and a second switch group, each of the first switch group and the second switch group comprises two single-phase switches, and one of the two single-phase switches of the second switch group and the first switch group are located at different phases; the device further comprises an interphase short circuit identification module and a control module. When an inter-phase short-circuit fault occurs, the device can conveniently realize the conduction of one fault phase and grounding of the other fault phase, thereby creating conditions for rapid processing of the inter-phase short-circuit fault.

Description

technical field [0001] The invention relates to the field of power supply system fault processing, in particular to an interphase short circuit processing device. Background technique [0002] At present, there are problems such as cumbersome operation, untimely, and inaccurate positioning in the treatment of phase-to-phase short-circuit faults in the power supply system, which affect the quality of power supply. Invention patent application 202011492758.3 and invention patent application 202011453632.5 provide a treatment method for phase-to-phase short circuit in the power supply system. According to this method, when a phase-to-phase short circuit occurs, one faulty phase is maintained and the remaining faulty phases are switched off, and then the other faulty phase is connected. ground, and ground the live phase to form a closed loop with the two faulty phases connected by short circuit and generate current or current pulse, and then detect the current duration or curren...

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Application Information

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IPC IPC(8): H02H7/22G01R31/52
CPCH02H7/22G01R31/52
Inventor 薛占钰丁同同刘建伟
Owner BAODING YUXIN ELECTRICAL TECH
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