电气技术  2017, Vol. 18 Issue (4): 136-139    DOI:
技术与应用 |
20Hz注入式100%定子接地保护监视电压低原因分析及改进措施
陈凤华1, 吴昊2, 高迪军3
1. 调峰调频发电公司惠州蓄能水电厂,广东 惠州 516100;
2. 调峰调频发电公司广州蓄能水电厂,广州 510900;
3. 西门子电力自动化有限公司,南京 211100
The Cause and Solution of Low Watching Voltage of Siemens 100% Stator Ground Fault Protection with 20Hz Voltage Injection
Chen Fenghua1, Wu Hao2, Gao Dijun3
1. Power Generation Company Huizhou Pumped Storage Power Station, Huizhou, Guangdong 516100;
2. Power Generation Company Guangzhou Pumped Storage Power Station, Guangzhou 510900;
3. Machinery Industry Information Institute SIEMENS Electric Power Automation Co., Ltd, Nanjing 211100
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摘要 本文介绍了西门子20Hz注入式100%定子接地保护原理,针对三个方面:注入式保护接地变压器二次监视电压低的原因、对保护灵敏度的影响及其改进措施、调试方法,均作了详细地介绍。另外,本文也分析了在调试时接地电流角度补偿与传变电阻的整定方法。
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陈凤华
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关键词 100%定子接地保护监视电压接地变压器传变电阻    
Abstract:This paper introduces the principleof Siemens 100% stator ground fault protection with 20Hz voltage injection, meanwhile, it also gives the cause of low voltage on the secondary side of earthing transformer, the influence on protection sensitivity, as well as the improvement measure of raising voltage, the debugging method after improvement measure. In addition, the paper also analyzes the setting method of earth current angle compensation and transmission resistance when debugging.
Key words100% stator ground fault protection    monitor voltage    grounding transformer    transmission resistance   
     出版日期: 2017-04-19
作者简介: 陈凤华(1989-),女,广东省广州市人,本科,技师,主要从事蓄能机组机变保护和励磁等系统的维护、研究与故障处理工作。
引用本文:   
陈凤华, 吴昊, 高迪军. 20Hz注入式100%定子接地保护监视电压低原因分析及改进措施[J]. 电气技术, 2017, 18(4): 136-139. Chen Fenghua, Wu Hao, Gao Dijun. The Cause and Solution of Low Watching Voltage of Siemens 100% Stator Ground Fault Protection with 20Hz Voltage Injection. Electrical Engineering, 2017, 18(4): 136-139.
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