Generator stator slot portion anti-hum layer potential measuring device

By designing an anti-corona layer potential measuring device for generator stator slots using an insulated telescopic rod and a push-pull rod, the problem of electric shock hazards for measuring personnel entering the iron core was solved, achieving safe and efficient stator slot potential measurement. In particular, it can simultaneously measure the potential of stator bars in two slots.

CN224416975UActive Publication Date: 2026-06-26HANGZHOU HUADIAN XIASHA THERMAL POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU HUADIAN XIASHA THERMAL POWER CO LTD
Filing Date
2025-04-11
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, measuring the anti-corona layer of the stator slot bar requires personnel to enter the stator core, which poses a high risk of electric shock and is not safe or efficient enough.

Method used

A device for measuring the anti-corona layer potential, comprising an insulated telescopic rod and an insulated push-pull telescopic rod, was designed. The insulated push-pull rod is used to measure the potential outside the iron core. The potential to ground is measured by contacting the stator bars through a copper pulley and combining it with a high internal resistance voltmeter. The device is made of insulating material to ensure safety.

Benefits of technology

It greatly reduces the risk of electric shock during measurement, improves the safety and efficiency of measurement, and can simultaneously measure the potential of stator bars in two slots, simplifying the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of generator stator slot part anti-halo layer potential measuring device.Currently, the line bar of stator slot part is tested to ground potential, and measurement personnel need to wear insulating boots to enter the stator core, which is highly dangerous. The utility model comprises: an insulating telescopic rod and an insulating push-pull telescopic rod, the insulating telescopic rod includes an insulating outer rod and an insulating inner rod, the insulating outer rod is sleeved on the insulating inner rod, and the top of the insulating inner rod and the bottom of the insulating outer rod are respectively fixed with copper pulleys; one end of a soft wire is connected with the copper pulley, and the other end is connected with the positive pole of a voltmeter, and the negative pole of the voltmeter is grounded. The utility model is used for generator stator slot part anti-halo layer potential measurement.
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