基于ATP的仿真和Matlab的运算表明基于电容器电感器电压比的电抗器匝间短路保护,能够对匝间故障做出快速而正确的判断。
ATP simulation and MATLAB calculation show that the voltage ratio protection against inter-turn fault of reactor can make correct judgement to this kind of fault quickly.
主要介绍了用于弧焊逆变器中的电子电抗器和短路保护电路,并对其工作原理进行了分析。
The electronic reactor and the short-circuit protecting circuit used in arc welding inverterare introduced, and their working principles are analyzed.
主要介绍了用于弧焊逆变器中的电子电抗器和短路保护电路,并对其工作原理进行了分析。
The electronic reactor and the short-circuit protecting circuit used in arc welding invertebrate introduced, and their working principles are analyzed.
文章着重介绍了该项目的自适应重合闸的原理及保护配置,并对带并联电抗器的电压判据作了改进。
The principles and protection disposition of adaptive reclosing are introduced emphatically, and the voltage criterion with shunt reactor has been made improvement.
提出了基于负序功率方向的并联电抗器匝间故障保护原理。
The paper proposes a novel shunt reactors turn-to-turn fault protection that is based on negative-sequence power direction theory.
分析了电抗器保护匝间短路灵敏度,提出了自适应补偿零序功率方向的方法。
Moreover, the sensitivity of turn-to-turn fault of shunt reactor protection was analyzed and a method of adaptive compensated zero sequence direction was presented.
因此,研究和开发高性能的超高压并联电抗器保护装置具有重要的现实意义和广阔的应用前景。
Therefore, it is of great necessity and significance to develop more advanced protection device for UHV line shunt reactor.
超高压并联电抗器保护装置已通过全面的静态测试和动模试验的验证。
The protection device for UHV line shunt reactor has been verified by static simulation experiment and dynamic simulation experiment.
②检漏继电器采用零序电抗器并不影响选择性漏电保护的实现,而对其可靠工作作用明显;
A feeding switch with a leakage protection function to replace a leakage check relay should not be adopted for practices.
由于并联电抗器两侧的电流发生变化,传统的行波差动保护无法应用于带并联电抗器的输电线路。
Because of the current on the shunt reactor, traditional traveling wave differential protection cannot be applied to transmission line with shunt reactor.
同时,根据并联电抗器的故障特征和类型,对超高压并联电抗器的保护原理配置进行了分析说明。
According to the fault types of UHV line shunt reactor, the protective principles scheme is analyzed detailedly.
特高压长线路可能在线路中间接入并联电抗器,从而有效补偿线路电容电流,抑制空载线路过电压。提出了在特高压长线路中间带并联电抗器时的线路分相电流差动保护原理。
Shunt reactor could be installed in the middle segment of the UHV transmission line, in order to compensate capacitive current of transmission line and limit over-voltage of line without load.
输入电抗器可滤谐波保护变频器。
输入电抗器可滤谐波保护变频器。
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