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Device for assisting in processing interphase short circuit

A phase-to-phase short-circuit and auxiliary processing technology, which is applied in the direction of circuit devices, emergency protection circuit devices, emergency protection devices with automatic disconnection, etc., can solve the problems of inaccurate positioning, cumbersome and untimely operation of phase-to-phase short-circuit faults, and achieve the speed of improvement and quality effects

Pending 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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  • Device for assisting in processing interphase short circuit

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Embodiment Construction

[0051] Below in conjunction with accompanying drawing, the present invention will be further described by specific embodiment:

[0052] 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. The device for assisting interphase short circuit processing includes a first switch group 1 and a second switch group 2, the first switch group 1 includes three single-phase switches 101, the second switch group 2 includes two single-phase switches 202, and three single-phase switches 202 The switch 101 is respectively connected to the bus bar and the ABC three-phase outgoing line, and the two single-phase switches 202 are respectively connected to any two phases and the earth in the lower outlet of the first switch group 1, such as AB two-phase and the earth, AC two-phase and the earth, or BC Two phases and the earth. The device also includes a phase-to-phase short-circuit identificati...

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PUM

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Abstract

The invention discloses a device for assisting in processing interphase short circuit, which comprises a first switch group and a second switch group, and is characterized in that the first switch group comprises three single-phase switches, and the three single-phase switches are respectively connected with a bus and an ABC three-phase outgoing line; the second switch group comprises two single-phase switches, and the two single-phase switches are respectively connected with any two phases of the outgoing line at the lower port of the first switch group and the ground; 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 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 fault handling of power supply systems, in particular to a device for auxiliary handling of short circuits between phases. 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 curre...

Claims

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Application Information

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IPC IPC(8): H02H3/08H02H3/10H02H9/02
CPCH02H3/083H02H3/10H02H9/02Y04S10/52
Inventor 薛占钰丁同同刘建伟
Owner BAODING YUXIN ELECTRICAL TECH
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