The current circuit is an important composition in relay protection and the current polarity effects on the selectivity of the relay protection operation.
电流回路是继电保护的重要组成部分,电流的极性影响继电保护动作的选择性,极性错误将导致保护误动或拒动,严重威胁系统的安全。
Node voltage and loop current functions of electric power network are established on the base of equivalent π-model network, with nodal injected power being equal to voltage source and impedance branches to the link branches and grounding branches to the tree branches, in order to form the complex analysis method for power flow calculation.
在π型等值的基础上,将节点注入功率等值为电压源,而以阻抗支路为链支、接地支路为树支,建立网络的节点电压方程和回路电流方程,从而形成混合分析方程,并在极坐标系情况下,推导支路电流与节点注入功率的灵敏度关系;以一个小的算例来介绍灵敏度矩阵的简化计算方法。
A method of formulating the node voltage equation and loop current equation is discussed in node formulation and loop formulation, when the voltage resource is in parallel connection with resistance (current resource or both in parallel connection) and the current resource is in series connection with the resistance (voltage resource or both in series connection).
本文讨论了当电路中含有与理想电压源支路并联的电阻 (电流源或二者的串联 )及含有与理想电流源串联的电阻 (电压源或二者的串联 )时 ,节点电压方程和回路电流方程的简便列法 。
Using the node voltage method and loop current method of circuit theory, the corresponding mathematical models of load flow are put forward, in which the unbalanced items of corrected equations are nodal injected current and loop voltage respectively.
利用电路的节点电压法和回路电流法,分别提出了解决电力系统潮流问题相应的数学模型,其修正方程式的不平衡量分别为节点注入电流和回路电压,从而揭示了潮流问题的电路本质。
By means of circuit topology theory and loop current method, simulation and calculation are performed on the 12-phase power winding of an induction generator with rectifier load system.
为了对异步发电机十二相功率绕组带整流负载系统进行仿真计算,采用了基于电路拓扑理论的回路电流法。
By virtue of graph theory,the network equations based on the loop current method are set up for single-phase induction motors.
以回路电流法为基础 ,借助于网络图论 ,建立了单相异步电机的网络方程 。
From a accident that current open circuit results in the trip of the 500kV transformer,this paper carefully analyzes the reason of operation of the current differential relay and proposes technical ways to prevent such accident.
本文从系统中发生的一次由于电流回路开路导致500kV主变跳闸的事故出发,详细地从理论上分析了差动保护的动作原因,并提出了预防该类事故发生的具体措施和办法。
Analysis and solution of harm of two points grounding in AC loop
交流电流回路两点接地危害的分析及应对措施
Simulation of Effect of Varistors on Output Characteristics of Impulse Current Circuit
压敏电阻对冲击电流回路输出特性影响的仿真
Recircle measuring for electric current of varied routes and design for protecting circuit;
多路电流巡回检测及保护电路的设计
The Way to List the Equation of the Return Circuit with Unattended Current Source;
含无伴电流源电路回路电流方程列写法
The Development of Computer-testing System for Current Measurement of Current-source in Synthetic Circuit;
合成回路中电流源电流计算机测试系统的研制
It is common for the direct current circuit to be interfered by alternating current voltage.
直流回路受到交流电压干扰,是控制回路中容易产生的现象。
Study on the Earthing & Return of the Power Supply Modes Frequently Adopted by High-speed Railways;
高速铁路常用供电方式接地回流研究
Analysis and Disposal of Interference Signal of Current Examination Circuit
电流检测回路干扰信号的分析及处理
The testing methods for the current balance of transformer differential circuit
变压器差动回路电流平衡的检验方法
Discussion to Double Circuit Same Tower Technique On U.H.V.A.C.Transmission Line
特高压交流输电线路采用同塔双回路技术研讨
Calculation of the Ion Flow Field under Multi-Circuit DC Transmission Lines
多回高压直流输电线路离子流场计算方法
The Analysis of Induced Voltage and Induced Current for 500 kV Parallel-Four-Circuit Transmission Lines
500kV同塔四回线路感应电压与感应电流分析
Investigation of on-site testing techniques and inspecting methods for PT and CT secondary circuits
电流电压二次回路现场试验方法技巧探讨
Study on Electromagnetic Environment of 750 kV Double Circuit Transmission Lines on Same Tower
750kV同塔双回交流输电线路电磁环境研究
Research on Secondary Arc Current of 1 000 kV Double-Circuit Transmission Lines on the Same Tower
1000kV同塔双回输电线路潜供电流研究(英文)
A luminous discharge of current that is formed when a strong current jumps a gap in a circuit or between two electrodes.
电弧，弧光当强电流在回路裂缝或两电极间跃升时形成的辉光放电
Hours low Leakage. Suit for use in timer loops and high-fidelity coupled circuits.
·85℃2000小时，低漏电流，适用于定量回路及高保真偶合电子线路中。
2000 Hours low Leakage. Suit for use in timer loops and high-fidelity coupled circuits.
2000小时，低漏电流，适用于定量回路及高保真偶合电子线路中。
