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- The zero sequence impedance of the cable changes with the zero sequence current as the zero sequence current flows in the ground and the sheathing simultaneously. 电力电缆的零序阻抗随零序电流的大小而改变,如果采用恒定值的零序阻抗来进行零序电流保护的整定,容易导致保护的不正确动作。
- zero sequence impedance 零序阻抗
- zero sequence mutual impedance betweenlines 零序线间互阻抗
- Abstract: Zero sequence directional power protection is widely used in neutral directly grounded system. 文摘:在大电流接地系统中广泛采用着零序功率方向保护。
- So a new control strategy is proposed to detect and suppress the influence of zero sequence component injected by DVR. 为此 ,提出了新的控制策略 ,该控制策略通过检测并消除指令中的零序分量 ,以破坏无零序电流回路系统的零序电压正反馈条件 ,消除 DVR注入零序电压的不良影响。
- The voltage regulation characteristic of autotransformer,external compensation of zero sequence current for three Y au . 论证自耦变压器的电压调整性能、三Y型自耦变压器的零序电流外补偿、自耦变压器继电保护整定的特殊问题。
- Whereas, if it is supplying the unsymmetric burden, the primary currents will be unsymmetric, but only have negative sequence and no zero sequence. 如果二次侧负载不对称，一次侧电流虽不对称，但仅有负序出现，并无零序分量。
- This work successfully develops a new intelligent HIF detector that adopts 3I0 zero sequence current to solve HIF problems in aerial lines. 本论文成功地开发一种新的智慧型高阻抗故障侦测器，它利用3I0零序电流侦测架空线的高阻抗故障。
- Actual Measurement and Calculation of Zero - sequence Impedance of Transformer 变压器零序阻抗的实测与计算
- The zero sequence current transformer is full enclosed type. The secondary windings and iron core are insulated by epoxy resin. The middle hole is used for cable going through. 本型零序电流互感器为全封闭式。二次绕组及铁芯均浇注在聚脂树脂内。中间窗孔供三相电缆穿过。
- When zero sequence or high secondary harmonic current component appear in the circuit, the total current in the shield is zero, no electromagnetic interference with outside. 当线路出现零序或高次谐波电流分量时，屏蔽层内电流总和为零，不对外界产生电磁干扰。
- In this paper, we investigate the iterated order and iterated convergence exponent to zero sequence of the solutions of some classes of differential equations. 摘要本文研究了几类微分方程解的迭代增长级及零点迭代收敛指数。
- In normal conditions, there are two causes of maloperation of zero sequence directional protection, i.e, a fault from the device itself and wrong wiring outside the device. 而造成零序方向保护误动的原因无非两种，其一是由于装置本身故障引起的；其二则是由于装置外部接线错误造成的。
- phase sequence impedance and current 相序阻抗和电流
- Using centralized control mode, the method centralizes zero sequence current (ZSC) of each branch switch to a device.The device controls each branch switch and main switch. 它采用集中控制模式，把各支路开关的零序电流集中到一个设备内，设备同时控制各支路开关和总开关。
- positive-phase sequence impedance 正相序阻抗
- negative phase sequence impedance 负相序阻抗
- negative-phase sequence impedance 反相序阻抗
- Yueqing Zhengda Soft Magnetic Alloy Co.,Ltd is a high-tech company that mainly produces ultra-crystallite (nanometer cryst-allite) material,ultra-crystallite magnetic core,current transformer,Zero sequence current transformer,toroidal transformer. 乐清市正大软磁合金有限公司，是一家专业生产超微晶（纳米晶）带材，超微晶磁芯，电流互感器，零序互感器，环型电感的高科技、软磁公司。
- The reactance of the shield in the zero sequence state is low, which is helpful for the application of new type automatic protecting equipment with short circuit, and the safe running of the cable and other relative equipment. 屏蔽层在零序工作状态下的电抗值低，有利于新型短路自动保护设备的应用，有利于电缆及其相关设备的安全运行。
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