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PT cabinet harmonic wave eliminator data measuring method and PT cabinet harmonic wave eliminator data measuring device

A cabinet resonance eliminator and data measurement technology, which is applied in the direction of measuring devices, measuring electrical variables, and capacitance measurement, etc., to achieve the effect of simple structure, reasonable design, and convenient short-circuiting

Inactive Publication Date: 2017-02-15
SUQIAN POWER SUPPLY COMPANY OF JIANGSU PROVINCE POWER +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When measuring capacitive current, the PT cabinet (potential transformer cabinet) cannot operate, which creates a contradiction. How to shorten the capacitive current test time can not only improve work efficiency but also reduce the risk of power grid operation

Method used

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  • PT cabinet harmonic wave eliminator data measuring method and PT cabinet harmonic wave eliminator data measuring device
  • PT cabinet harmonic wave eliminator data measuring method and PT cabinet harmonic wave eliminator data measuring device

Examples

Experimental program
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Embodiment Construction

[0017] Refer to attached figure 1 , 2 , a PT cabinet resonance eliminator data measurement device includes an insulating baffle 1, insulating pillars 2, wires, and a resonance eliminator 4.

[0018] The insulating plate 1 is fixed by insulating pillars 2, and the two ends of the resonance eliminator 4 are drawn out and fixed on the insulating plate 1 with wires. The wires are divided into a black terminal wire 5 and a red terminal wire 3, the black terminal wire 5 and the tail end of the resonance eliminator 4 are grounded, and the red terminal wire 3 is connected to the head end of the resonance eliminator 4.

[0019] Open two holes on the door of the PT cabinet for short wiring.

[0020] A measuring method of a PT cabinet resonance eliminator data measuring device, comprising the steps of:

[0021] 1. Open two holes on the door of the PT cabinet for short wiring.

[0022] 2. Fix the insulation board with the insulation support 2, and lead out the two ends of the resonanc...

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Abstract

A PT cabinet harmonic wave eliminator data measuring method and a PT cabinet harmonic wave eliminator data measuring device of the invention relate to a distribution line capacitance and current measuring method applied to the power industry, and especially relate to a PT cabinet harmonic wave eliminator data measuring method and a PT cabinet harmonic wave eliminator data measuring device. The PT cabinet harmonic wave eliminator data measuring device comprises an insulating barrier, insulating pillars, wires, and a harmonic wave eliminator. The insulating barrier is fixed by the insulating pillars. The two ends of the harmonic wave eliminator are lead out by the wires and fixed on the insulating barrier. The wires include a black terminal wire and a red terminal wire. The black terminal wire is connected with the tail end of the harmonic wave eliminator and grounded. The red terminal wire is connected with the head end of the harmonic wave eliminator. Two holes are arranged in the door of a PT cabinet to short-circuit a line. Through the PT cabinet harmonic wave eliminator data measuring method and the PT cabinet harmonic wave eliminator data measuring device, measurement is shortened from 70 minutes to about 10 minutes, the production efficiency is greatly improved, and the risk to grid operation is reduced.

Description

technical field [0001] The invention relates to a method for measuring data of a resonance eliminator of a PT cabinet and a measuring device thereof, which relate to a method for measuring capacitance and current of a power distribution line applied in the electric power industry, especially a method for measuring data of a PT cabinet. and its measuring device. Background technique [0002] At present, the neutral point of the power supply in my country's power distribution system is generally not grounded, so when a line single-phase ground fault occurs, the current flowing through the fault point is actually the capacitive current generated by the line-to-ground capacitance. According to statistics, the failure of the distribution network is largely caused by the fact that the capacitance of the line is too large when the line is single-phase grounded, and the arc cannot be extinguished by itself. Therefore, my country's electric power regulations stipulate that when the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/26G01R19/00
CPCG01R19/00G01R27/2605
Inventor 胡寅陆微邓佳宾王军朱统亮张春林沈正雷赵迎春丁军
Owner SUQIAN POWER SUPPLY COMPANY OF JIANGSU PROVINCE POWER
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