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An active intervention type arc suppression device test system

A test system and arc suppression technology, which is applied in the direction of short-circuit test, measuring device, circuit device, etc., can solve the problem of limited test function, and achieve the goal of improving reliability, expanding system capacity, improving equivalence and repeatability Effect

Active Publication Date: 2022-04-08
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this invention has limited testing functions and fails to solve the above-mentioned technical problems

Method used

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  • An active intervention type arc suppression device test system

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Experimental program
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Effect test

Embodiment 1

[0049] Such as figure 1 As shown, an active intervention type arc suppression device test system includes the substation subsystem, the line subsystem and the fault simulation subsystem; m; the substation subsystem includes laboratory incoming line isolation power supply, primary switchgear, secondary monitoring and protection equipment, neutral point operation mode simulation unit; the line subsystem uses the common outgoing line of the real line and the simulated line The simulation mode includes 6 outgoing lines, of which 3 are real lines and 3 are simulated lines; the fault simulation subsystem includes a fault simulation unit, a current transformer and a voltage transformer.

[0050] The incoming line isolation power supply is composed of a low-short-circuit impedance step-down transformer and a step-up transformer. The primary switchgear includes an incoming line switch cabinet, each branch outgoing line switch cabinet, and a bus voltage transformer cabinet. The secondar...

Embodiment 2

[0055] The difference between the active intervention type arc suppression device test system of the embodiment of the present invention and the first embodiment is that the substation subsystem, the line subsystem, and the fault simulation subsystem all have measurement and control and wave recording units for Perform wave recording, analysis and processing on each monitored physical quantity, and conduct video surveillance on two fault points respectively.

Embodiment 3

[0057] The active intervention type arc suppression device test system of the embodiment of the present invention differs from the first and second embodiments in that: the incoming and outgoing lines of the circuit subsystem are equipped with current quick-break protection, time-limited current quick-break protection, and fixed-time limit protection. Overcurrent protection, overload protection, single-phase grounding zero-sequence current protection; load zone is equipped with quick-break protection, and low-voltage is equipped with zero-sequence current protection.

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Abstract

The invention discloses an active intervention type arc suppression device test system, belonging to the field of substation automation detection system, which includes a substation subsystem, a line subsystem and a fault simulation subsystem; the substation subsystem includes a laboratory incoming line isolation Power supply, primary switchgear, secondary monitoring and protection equipment, neutral point operation mode simulation unit; line subsystem adopts the outlet simulation mode shared by real lines and simulated lines, with 3 real lines and 3 simulated lines; fault simulation subsystem Including fault simulation unit, current transformer and voltage transformer. The invention can expand the system capacity of the test system of the distribution network fault detection and processing device, improve the equivalence and repeatability of the test environment of the distribution network, thereby improving the test capability of the distribution network fault detection device and the credibility of the test results To provide a professional, efficient and authoritative testing and testing platform for key technology research on distribution network fault handling, formulation of relevant standards, and device testing.

Description

technical field [0001] The invention belongs to the field of substation automation detection systems, and in particular relates to an active intervention type arc suppression device test system. Background technique [0002] my country's distribution network has the characteristics of complex line structure, diverse environment, frequent and complex faults, and heavy maintenance workload. If a fault occurs in a certain section of the distribution line, it is necessary to troubleshoot the location of the fault one by one. Not only is the work intensity high, but it will also delay the repair time and affect the reliability of power supply. [0003] With the rapid development of my country's electric power industry, the structure of urban and rural distribution networks has changed greatly, and the proportion of cables in the feeder lines is increasing, which has played a good role in reducing the occupied area and reducing the failure rate. , but it also brings the problem o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08G01R31/52H02H7/26H02H9/08
CPCG01R31/086G01R31/088G01R31/52H02H9/08H02H7/26Y04S10/52
Inventor 王鹏马心良冯光周久勤徐铭铭陈明董轩张建宾赵健王磊轩梦辉孙芊
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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