Based on the detailed analysis of basic principle, the traditional three-phase short-circuit criterion of phase selection element based on sudden-change of phase current differential is improved.
在详细分析相电流差突变量选相基本原理的基础上,对传统相电流差突变量选相元件三相短路故障判据进行了改进。
The working principles and characteristics of various split-phase current differential protections are compared, and a reasonable protection scheme is proposed after ATP simulations were conducted.
比较各种分相电流差动保护原理的特性,并通过AT P仿真,提出了一个合理的电流差动保护原理方案。
The decision circuit of the chip is applied with a DFF using SCFL structure and its tuned phase shifter with differential current amplifiers according to the principle of vector addition.
该芯片的判决电路采用SCFL(源级耦合晶体管逻辑)的D触发器结构,根据矢量叠加原理设计,采用差动电流放大器构成可调移相器。
The protect range is relational to short circuit type and phase when phase differential current connection mode is adopted.
当采用两相电流差接线方式时,保护范围与短路类型和短路相别有关。
The sensitivity and the security of the percentage differential criteria using phase current and superimposed phase current are studied comparatively.
全面对比分析了全电流比例差动判据和故障分量电流比例差动判据的灵敏性和安全性。
Results also show that differential peak phase of ion Current Signal or H30 + concentration slightly postpones to the peak phase of heat release rate.
离子电流信号差分峰值相位、H30 +浓度差分峰值相位与放热率峰值相位之间均存在一定的相位差。
This paper introduces theoretical basis and method of measuring transformer differential protection phase by transformer differential circulating current method.
介绍了用差压环流法测量变压器差动保护相位的理论依据及方法。
In this article, the action characteristic of phase current-differential criterion in EHV system and the effect of capacitance current compensation have been analyzed using EMTP simulation result.
利用EMTP仿真结果分析了这相电流差动判据在超高压系统中的动作特性和电容电流补偿的效果。
Several questions are discussed in applying the digital phase segregated current differential protection based on RCS-931, and debug the equipment in worksite.
对于电流纵差保护在应用中会遇到的几个主要问题,结合光差保护现场的一些实际工作,以RCS-931 保护装置为例进行了分析。
Simulation results show that it is necessary to consider capacitance current compensation in the phase-splitting current differential protection scheme for HTS power cable;
结果表明,在高温超导电缆分相电流差动保护方案中必须考虑电容补偿;
Simulation results show that it is necessary to consider capacitance current compensation in the phase-splitting current differential protection scheme for HTS power cable;
结果表明,在高温超导电缆分相电流差动保护方案中必须考虑电容补偿;
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