Insulation Structure Design of the Integration of Electronic Current Transformer and Circuit Breaker Contact Arm

WANG Yu; YANG Zhongzhou; DAI Dongyun; FENG Jianhua; GUO Lili

doi:10.13296/j.1001-1609.hva.2020.01.008

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Insulation Structure Design of the Integration of Electronic Current Transformer and Circuit Breaker Contact Arm

更新时间：2025-04-26

- Insulation Structure Design of the Integration of Electronic Current Transformer and Circuit Breaker Contact Arm
- High VoltageApparatus Vol. 56, Issue 1, Pages: 48-54(2020)
- 作者机构：
  
  1. 西安西电电气研究院有限责任公司
  2. 西安高压电器研究院有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.01.008
  CLC： TM452;TM561
- Published：2020
- 稿件说明：
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[1]王瑜,杨忠州,戴冬云,冯建华,郭黎黎.电子电流互感器与断路器触臂集成的绝缘结构设计[J].高压电器,2020,56(01):48-54.

WANG Yu, YANG Zhongzhou, DAI Dongyun, et al. Insulation Structure Design of the Integration of Electronic Current Transformer and Circuit Breaker Contact Arm[J]. High voltageapparatus, 2020, 56(1): 48-54.
[1]王瑜,杨忠州,戴冬云,冯建华,郭黎黎.电子电流互感器与断路器触臂集成的绝缘结构设计[J].高压电器,2020,56(01):48-54. DOI： 10.13296/j.1001-1609.hva.2020.01.008.

WANG Yu, YANG Zhongzhou, DAI Dongyun, et al. Insulation Structure Design of the Integration of Electronic Current Transformer and Circuit Breaker Contact Arm[J]. High voltageapparatus, 2020, 56(1): 48-54. DOI： 10.13296/j.1001-1609.hva.2020.01.008.

摘要

文中介绍了电子式电流互感器与ZN-12/D1250-31.5型户内交流高压真空断路器（VCB）触臂集成的绝缘结构设计。基于断路器及开关柜固有结构、电子式电流互感器线圈设计尺寸建立仿真模型

阐述了如何借助电场仿真软件

对电子式电流互感器与断路器触臂布置方式、环氧树脂浇注厚度和屏蔽罩布置方式、环氧树脂包裹触臂长度等绝缘影响因素进行优化完善。对触臂集成电子式电流互感器的断路器样机及电子式电流互感器样机分别在国家质量监督检验中心（西高院试验站）进行型式试验验证

验证了该设计方案的可行性。

Abstract

This paper introduced the insulation structure design of integrated Electronic Current Transformer（ECT）with ZN□-12/D1250-31.5 high voltage AC Vacuum Circuit Breaker（VCB）

and focused on the insulation optimi-zation process. Based on the original size of switchgear、VCB and the new size of ECT

the electric field simulationmodel was built. In order to meet the insulation design requirements

the influencing factors of electric field distribu-tion were adjusted

such as relative location of electronic current transformer

VCB arm

epoxy resin thickness

shield arrangement

and epoxy resin encapsulated arm length. The integrated ECT and VCB prototype were tested inNational Quality Supervision and Inspection Center（XIHARI Test Station）

the experimental results verified the fea-sibility of the design scheme.

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