过电压

Metal Oxide Arrester is an instrument of over voltage protection which has been developed and extensively used in the electric power system, it has a very good non-linear characteristic.

金属氧化物避雷器是电力系统中常用的一种过电压保护系统，它具有非常好的非线性，在电力系统中得到了广泛的应用。

According to the results of calculation, the cancel of gap arrester is the main course of the accidents in 35kV substation.

本文详细计算并分析了取消管型避雷器后变电站各个设备上的最大雷电过电压。

The location and quantity of arrestor and impulse grounding resistance of towers has direct influence on lighting overvoltage.

变电站避雷器安装位置和数量及输电线终端塔的接地电阻对雷电过电压有著直接的影响。

To actualize condition-based maintenance for Metal-Oxide Arrestor, which is a kind of important device used to restrain overvoltage in the electric power system, the research of on-line monitoring of MOA is important and necessary.

金属氧化锌避雷器MOA作为电力系统重要的过电压保护设备，对其开展在线监测是实现状态维修的必然要求。

The Metal Oxide Arrestor, composed of metal oxide varistor, is a perfect protector for over-voltage.

氧化锌避雷器，简称MOA，由氧化锌非线性电阻}MOv组成，是目前常温下理想的过电压保护装置。

The paper makes an improvement on the circuit model of transformer in calculation of electromagnetic transients. Two conditions are investigated: exclusion of transformer magnetizing branch and inclusion of hysteresis curve of transformer magnetizing branch.

本文在电磁暂态计算中完善了变压器的电路模型，分析了在不考虑变压器励磁支路和考虑励磁支路的情况下线路合闸过电压水平计算值的差异，研究了合空变励磁涌流，最后对得出的计算结果进行了分析。

When a lightning current or over-voltage reaches the threshold value of the zinc oxide resistor, the resistance of the zinc oxide quickly breakover and bleed the lightning current to the earth, thus protecting the circuit.

当有雷电流或者过电压达到氧化锌电阻的阀值时，氧化锌电阻迅速导通，将雷电流泄放到大地，从而对电路起到保护作用。

He obtained an honours degree in mechanical engineering from Brunel University having specialised in statics and finite element analysis.

目前，中国三大汽车集团：一汽集团、上汽集团、东风集团已全部使用了菲尼克斯现场总线INTERBUS系统；而TRABTECH防雷过电压保护产品在国内也得到了广泛的应用。

And how to consider the protection of the above metallic line in the building against overvoltage?

如何考虑对上述这些建筑中的金属电缆的过电压防护？

Respond to the speed quick:Can respond to quickly in the 5 nses, make the power cable on the road conduct electricity press to get to repress effectively, leak to put the energy to the ground at the same time, the thunder and lightning recovers the normal appearance high resistance later on and automatically.

响应速度快：能够在5ns内快速响应，使电源线路上的过电压得到有效的抑制，同时对地泄放能量，雷电过后自动恢复正常状态。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。