1) 80% stator earth protection
80%定子接地保护
1.
The purpose for perfecting the principle objection of inter-turn and 80% stator earth protection is gained.
简要介绍了小浪底水电站数字式继电保护系统(DRS)的功能,通过增加电压闭锁功能,达到完善匝间保护和80%定子接地保护原理缺陷的目的,解决了匝间保护和80%定子接地保护误动现象,从而取得了良好的效果。
2) stator grounding protection
定子接地保护
1.
Reliability of stator grounding protection based on 3rd harmonic voltage;
提高三次谐波电压式定子接地保护动作可靠性的措施
2.
It determines if the grounding point is in generator stator winding according to the first harmonic and third harmonic of leaking current to realize 100 % stator grounding protection.
在深入分析发电机对地泄漏电流(即3倍中性点侧零序电流与机端出线侧零序电流之差)的基础上,提出了一种通过比较发电机定子单相接地故障时各发电机泄漏电流的大小或方向进行保护的发电机定子接地保护新方法。
3.
Security and stability problems were analyzed caused by generator rotor grounding protection,generator excitation-loss protection and stator grounding protection.
对发电机转子接地保护、发电机失磁保护、发电机定子接地保护在实际运行中存在的影响机组安全稳定运行问题进行了分析,并提出相应的改进措施。
3) stator grounding fault protection
定子接地保护
1.
The stator grounding fault protection with 20Hz voltage injection can provide 100% winding s protection and monitor the drop of stator s insulation.
20Hz注入式定子接地保护可以单独实现定子100%绕组的保护,可以监测定子绝缘水平的下降,因而越来越多地应用于大型发电机保护。
4) stator ground protection
定子接地保护
1.
Analysis on misaction of 3ω stator ground protection for steam turbine-generators;
汽轮发电机三次谐波电压定子接地保护的误动分析
2.
Discussion on the setting calculations of stator ground protection based on the third-harmonic voltage criterion;
三次谐波电压型定子接地保护整定计算探讨
3.
The research and development on injection scheme for stator ground protection of 1000 MW generator;
百万千瓦机组注入式定子接地保护的研究与开发
5) stator earth fault protection
定子接地保护
1.
A novel selective stator earth fault protection based on zero-sequence direction element is proposed, which can overcome the shortage of stator earth fault protection applied to generator connected as expanding unit.
指出现有定子接地保护应用于扩大单元接线方式发电机上的不足,提出基于零序方向元件的选择性定子接地保护方案。
2.
More and more large-sized generators are installed 100% stator earth fault protection with low-frequency alternating-voltage injection.
近年来越来越多的大型发电机装设100%注入式定子接地保护。
3.
The mode of the connection not noly have a close relation to the generator stator earth fault protection,but also to the current of single phase connected to earth fault and the insulation of the stator.
发电机的中性点接地方式不仅与定子接地保护所采用的形式密切相关 ,而且与单相接地故障电流、定子绕组的绝缘相关。
6) stator ground fault protection
定子接地保护
1.
The drawbacks of present stator ground fault protection principle for the small and medium sized generators are pointed out.
指出了现有中小型发电机定子接地保护原理的不足。
2.
The basic reason is that the load change causes the 3rd harmonic voltage changing of stator windings (EΦ3),so that the 100% stator ground fault protection based on the 3rd harmonic voltage will be influenced.
大型汽轮发电机机端3次谐波电压U3t以及中性点3次谐波电压U3n随有功负荷和无功负荷变动而变化,根本原因是定子绕组3次谐波电压EΦ3受负荷影响,从而影响到3次谐波电压的100%定子接地保护。
补充资料：Thiocyanic acid, 2-(benzothiazolylthio)methyl ester, 80%
CAS: 21564-17-0
分子式: C9H6N2S3
中文名称: 硫氰酸(2-苯并噻唑基硫代)甲(基)酯
英文名称: Thiocyanic acid, 2-(benzothiazolylthio)methyl ester, 80%；thiocyanic acid, (2-benzothiazolylthio)methyl ester, 30；thiocyanic acid, 2-(benzothiazolylthio)methyl ester, 60%；(2-benzothiazolylthio)methyl thiocyanate [qr]；2-(thiocyanomethylthio) benzothiazole [qr]；2-(thiocyanomethylthio)benzothiazole, 60%
分子式: C9H6N2S3
中文名称: 硫氰酸(2-苯并噻唑基硫代)甲(基)酯
英文名称: Thiocyanic acid, 2-(benzothiazolylthio)methyl ester, 80%；thiocyanic acid, (2-benzothiazolylthio)methyl ester, 30；thiocyanic acid, 2-(benzothiazolylthio)methyl ester, 60%；(2-benzothiazolylthio)methyl thiocyanate [qr]；2-(thiocyanomethylthio) benzothiazole [qr]；2-(thiocyanomethylthio)benzothiazole, 60%
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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