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- zero sequence over current 零序方向过流
- 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。
- 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。
- 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。
- Please give us a90-day extension on loan repayment to help us tide over current financial difficulty. 请给我们延长90天的贷款偿还期限,以便克服目前的财政困难。
- 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。
- 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。
- We had an animated discussion over current events last evening. 昨天晚上我们热烈地讨论时事。
- P.S.:Reset must be need when over current to get right. 过流发生后,必须重新启动才能恢复。
- 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。
- Analysis and simulation are carried out with the four-arm inverter, the simulation results verify that the APF with one-cycle control can dynamically and effectually compensate the harmonics, reactive current and zero sequence current. 在对四桥臂变换器的三相四线制有源滤波器进行分析、建模的基础上,进行了仿真研究,仿真结果表明单周控制三相四线制有源滤波器能有效地补偿系统谐波、零序和无功电流,而且响应快、补偿性能好。
- You are not inclined to rote learning and repetition, nor are you inclined to repetitively practice or execute the same sequence over and over again. 你不会死记硬背、也不会重复操练或者一遍遍地做同一件事。
- The results of experiment and simulation indicate that harmonics,negative and zero sequence current in three phase and f our wire system could be compensated by two types of main power circuits. 实验和仿真结果表明,这两种不同形式的主电路有着各自的特点,均可对三相四线制系统中的谐波、负序及零序电流进行补偿。
- The problem of transmitting a FGS video sequence over an IP-based wireless network consisting of both wired and wireless links is addressed. 研究了基于IP无线网络中精细粒度可伸缩性(FGS)视频的传输。
- A new type of over current protection system of MCCB was Introduced. 介绍了一种新型塑壳断路器的过电流保护系统。
- 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。
- 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。
- Please give us a 90-day extension on loan repayment to help us tide over current financial difficulty. 请给我们延长90天的贷款偿还期限,以便克服目前的财政困难。