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High-voltage motor stator winding end surface potential measurement system

A technology for stator windings and high-voltage motors, which is used in electrostatic field measurement, motor generator testing, and electrical measurement to achieve the effects of fast sampling rate, high accuracy, and easy operation.

Active Publication Date: 2020-05-15
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology uses a non-contact measurement method to collect optical signals to study the surface potential distribution of the motor wire rod in the dark box environment, and can only obtain the surface potential distribution information along the length direction of the motor wire rod

Method used

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  • High-voltage motor stator winding end surface potential measurement system
  • High-voltage motor stator winding end surface potential measurement system
  • High-voltage motor stator winding end surface potential measurement system

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Embodiment 1

[0027] Combine figure 1 , figure 2 , image 3 with Figure 4 This embodiment is described. In this embodiment, a system for measuring the surface potential of the stator winding end of a high-voltage motor involved in this embodiment includes a high-voltage electrostatic probe 1, a probe support structure, a winding support structure, a high-voltage motor stator winding, The ground electrode 13, the high voltage electrode 16, and the constant temperature and humidity box 21. The high voltage electrostatic probe 1, the probe support structure, the winding support structure, and the high voltage motor stator winding are all located in the constant temperature and humidity box 21. The high voltage motor stator winding is composed of windings. The conductor 10 and the winding insulation layer 11 are composed of the winding insulation layer 11 wrapped in the middle of the motor winding conductor 10. The high voltage motor stator winding is fixed on the winding support structure, and...

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Abstract

The invention discloses a high-voltage motor stator winding end surface potential measurement system, belongs to the field of electrical insulation measurement systems, and provides a measurement system which directly acquires electrostatic potential signals in a non-contact manner and can realize surface potential distribution measurement along the length direction and the width direction of a winding at different humidity and different temperature. In the present invention, a high-voltage electrostatic probe, a probe supporting structure, a winding supporting structure, a motor winding conductor and a motor winding insulating layer are all located in a constant-temperature and constant-humidity box. The motor winding insulating layer wraps the middle part of the motor winding conductor;the motor winding conductor is fixed on the winding support structure; the probe supporting structure is fixed in the constant-temperature and constant-humidity box and located above the motor windingconductor, the high-voltage electrostatic probe is installed on the probe supporting structure and right faces the motor winding insulating layer, the grounding electrode is fixed in the middle of the motor winding insulating layer, and the high-voltage electrode is fixed at one end of the motor winding conductor. The measurement system is mainly used for measuring the surface potential of the end of the high-voltage motor stator winding.

Description

Technical field [0001] The invention belongs to the field of electrical insulation measurement systems, and in particular relates to a system for measuring the surface potential of the stator winding end of a high-voltage motor. Background technique [0002] High-voltage motors play an important role in the development of the national economy. However, the uneven electric field distribution and high amplitude at the ends of the stator windings are prone to cause corona discharge, leading to deterioration of the stator winding insulation performance and threatening the safe operation of high-voltage motors . In order to effectively suppress the corona discharge phenomenon, anti-corona materials are usually used to prevent corona at the ends of the stator windings of high-voltage motors, so as to make the electric field distribution at the ends of the stator windings uniform and reduce the maximum electric field intensity in a local area. [0003] In order to ensure that the ends of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01R31/16G01R31/12G01R31/00G01R29/14
CPCG01R31/346G01R31/16G01R31/1263G01R31/003G01R29/14
Inventor 韩永森杨洲夏云彦
Owner HARBIN UNIV OF SCI & TECH
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