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Turn-to-turn insulation fault diagnosis characteristic waveform generating device of switch device opening-closing coil

A technology of opening and closing coils and inter-turn insulation, which is applied in the direction of measuring devices, instruments, measuring electricity, etc., to achieve the effects of improving system accuracy, light weight, and easy analysis

Inactive Publication Date: 2018-02-27
STATE GRID HEBEI ENERGY TECH SERVICE CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of how to generate two completely consistent waveforms has not been solved. The actual site needs a safe, portable and flexible switchgear opening and closing coil turn-to-turn insulation fault diagnosis characteristic waveform generator to solve the above problems.

Method used

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  • Turn-to-turn insulation fault diagnosis characteristic waveform generating device of switch device opening-closing coil
  • Turn-to-turn insulation fault diagnosis characteristic waveform generating device of switch device opening-closing coil
  • Turn-to-turn insulation fault diagnosis characteristic waveform generating device of switch device opening-closing coil

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] Depend on Figure 1-3 As can be seen from the shown embodiment, it includes a power supply module, a characteristic pulse generation module, a signal output and load module and a battery; the output terminal of the battery is connected to the corresponding input terminal of the power supply module; the output terminal of the power supply module is connected to the characteristic pulse generation The corresponding input terminal of the module; the output terminal of the characteristic pulse generation module is connected with the signal output and the corresponding input terminal of the load module.

[0016] The power module adopts a low-ripple DC-DC module, which converts the output voltage of the battery into a 12V DC power supply, the ripple is not greater than 20mV, and the output current is not less than 3A; the power module includes pins 1 to 4; the power module Pin 1 and pin 2 of the power module are the input terminals of the power module, pin 1 of the power modu...

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PUM

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Abstract

The invention relates to a turn-to-turn insulation fault diagnosis characteristic waveform generating device of a switch device opening-closing coil. The turn-to-turn insulation fault diagnosis characteristic waveform generating device comprises a power module, a characteristic pulse generation module, a signal output and load module and a battery. The fault probability of a circuit device is reduced, and the reliability of the system is improved by adopting the device. The turn-to-turn insulation fault diagnosis characteristic waveform generating device makes fault judgement accurate, simple,convenient and visual. The turn-to-turn insulation fault diagnosis characteristic waveform generating device is a nondestructive testing method. A firm and objective data foundation is provided for turn-to-turn insulation fault diagnosis of the switch device opening-closing coil. The turn-to-turn insulation fault diagnosis characteristic waveform generating device has the advantages of being safe, portable, flexible, accurate and the like, the problem produced by characteristic waveform in turn-to-turn insulation fault diagnosis of the current switch device opening-closing coil is solved, thetechnical levels in the related fields are improved, and the shortcomings of detection technologies in actual application are overcome.

Description

technical field [0001] The invention belongs to the field of electric equipment insulation detection technology and its application, and in particular relates to a device for generating a characteristic waveform of an insulation fault diagnosis between turns of an opening and closing coil of a switchgear. Background technique [0002] The opening and closing action of the switchgear is usually completed after the action command is issued, the opening and closing coil is energized to move the iron core, and the opening and closing detent is triggered to trip. Due to poor processing technology, winding process defects, disordered arrangement of turns, etc., the switchgear coil will cause the insulation between turns to be reduced or even turn-to-turn short circuit, that is, coil turn-to-turn short circuit fault. Turn-to-turn short-circuit fault will cause the magnetic force generated by the coil to decrease after the switchgear action command is issued, and the current will in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G01R31/06
CPCG01R31/12G01R31/72
Inventor 李天辉李晓峰庞先海潘瑾范辉张建忠
Owner STATE GRID HEBEI ENERGY TECH SERVICE CO LTD
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