The over Voltage protection should be tested at other load rating.
过压保护测试是在其它定额负载时测试。
When lightning strikes a direct buried communication cable, the over voltage produced on the cable is inevitable.
雷击直埋通信电缆产生的过电压危害非常严重。
To make the over voltage Vs time function of line trap at short time current test by complex frequency field analysis is introduced in this paper.
用复频域分析法求出试验电流作用以后的阻波器上的过电压的函数。
Finally, with the capacitor protection and the over voltage protection as an example, a model for the equipment and the function in the IEC 61850 protection is developed.
详细阐述了该类保护装置的硬件设计方法和实现形式，并以电容器保护装置为例，初步建立了装置的IEC 61850设备模型。
This recorded the voltage that each model made over a period of time.
这个仪器记录每一个模型在既定时间段产生的电压。
The second reason is that it is difficult to make these circuit voltage controllable over a large frequency range.
第二个理由是很难做到将这些电路的电压控制在一个很大的频率范围内。
Electrical Circuitry: Converters stabilize the current's varying frequencies. Transformers boost voltage from 690 volts to more than 22,000, so current travels efficiently over long-distance lines.
电气线路：利用整流装置稳定电流的变化频率，此外通过变压器把690伏特的电压提升到超过2200 0伏特，大大提高了电流长途输送的效率。
Electrical Circuitry: Converters stabilize the current's varying frequencies. Transformers boost voltage from 690 volts to more than 22, 000, so current travels efficiently over long-distance lines.
电气线路：利用整流装置稳定电流的变化频率，此外通过变压器把690伏特的电压提升到超过2200 0伏特，大大提高了电流长途输送的效率。
With short circuit protection, over current protection, the load voltage protection protection and multiple protection.
具有短路保护、过电流保护、过负载保护以及电压保护多重保护。
Finally, the impact of series resonant current limiter on relay protection and over voltage in grid was explored.
最后探讨了串联谐振式限流器对继电保护和电网过电压的影响。
Monitoring the voltage decay over time will give an indication of cell quality.
通过监测电压随时间的下降，将能够说明电池的质量。
A method of keeping neutral point potential balanced based on three-level SPWM had been brought forward, which can improve output waveform and decrease the possibility of IGCT's over-voltage.
提出了一种基于三电平spwm调制的中点电压抑制方法，在改善输出波形质量的同时，有效的降低了IGCT过电压的危险。
Therefore, if the foreign plants adopt plastic extrusion molding for over-voltage crosslinked polythene cable, they currently adopt "plastic extrusion sulfuration by layers" method.
因此国外厂家对超高压交联聚乙烯电缆如果采用“挤塑模铸法”，目前均采取“分层次挤塑硫化”工艺方式。
The characteristics of transformer with multi magnetic circuits and its output ability and over voltage depression were introduced.
介绍了多磁路变压器的工作特点、输出能力和过电压的抑制。
Through deduction and analysis, the conclusion can be made: low reactance at the neutral point of transformer has little effect on the switching over-voltage in power systems.
通过计算和分析表明：变压器中性点接入小电抗对系统的操作过电压基本不会产生影响。
However, it may come into being serious problems if the batteries get improper management during the operation, such as over-charging, over-discharging, imbalance of voltage among the cells.
然而，如果在运行中不能很好的管理，电池会产生如过充、过放和电压不平衡等很严重的问题。
With the music signal in a moment can the worth electric voltage of attaining come the over and above and actual function of meaning of calculating exportation power, its business.
以音乐信号瞬间能达到的峰值电压来计算的输出功率，其商业意义大于实际作用。
The series mixed SPD is a new method of using for the railroad signal system of over voltage protection.
串混型SPD是铁路信号系统过电压防护的新用法。
Comparing to conventional fixed voltage, the slope limit voltage in the over power protect circuit can improve the constant power limit capability in different input voltage.
提出在过功率保护电路中利用斜坡电压取代传统的固定电压，以达到不同输入电压下的恒定功率限制。
According to the over - voltage values on the above equipment, the protective scheme adopting mental oxide arrestor (MOA) are correspondingly presented.
根据各设备上的过电压数值提出了相应的金属氧化物避雷器保护方案。
In this paper, the effect of the neutral grounded by the low reactance on switching over-voltage in the power system is studied.
文章就中性点小电抗的接入对系统的操作过电压的影响进行了研究。
The output protection function: over voltage, over power, and over short circuit.
输出保护功能：过电压，过功率，短路。
Operating voltage can seriously influence the over-voltage, arising from the transformer under the lightning impulse .
工作电压会严重地影响变压器遭受雷击时产生的过电压。
The sag curve at atmospheric over-voltage calculated by this method can meet the needs of engineering.
通过此方法计算在大气过电压情况下的弧垂曲线，能满足工程需要。
The installation of over-voltage protector the relationship between the line U1 induced over-voltage and density of the curve.
过电压保护器的安装密度与线路感应过电压u1的关系曲线。
The proposed method can effectively control the ferroresonance over voltage from the chaos to period orbit and implement the transformation of system status between chaotic and ordered situation.
该方法能有效控制铁磁谐振过电压从混沌状态转移到期望的周期轨道，实现系统状态在混沌和有序之间的转换。
Therefore, the over-voltage caused by the electromagnetic voltage transformer saturation in the system with insulated neutral belongs to shifting over-voltage.
故可得出结论：在中性点绝缘系统中，因电磁式电压互感器饱和引起的过电压现象属于工频位移过电压。
The simulation results indicate that the strategy can maintain the system voltage and prevent the over-control and control oscillation among the multi-methods.
仿真结果表明，该方法能有效地维持系统电压水平，同时防止多控制手段间的超调和调节振荡等现象。
The simulation results indicate that the strategy can maintain the system voltage and prevent the over-control and control oscillation among the multi-methods.
仿真结果表明，该方法能有效地维持系统电压水平，同时防止多控制手段间的超调和调节振荡等现象。
应用推荐