Interrupting no load transformer is the most serious case in vacuum circuit breaker switching overvoltage.
切除空载变压器是真空断路器操作过电压问题最严重的情况。
Paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of MOA and insulation level of UHV AC apparatus.
主要内容包括：工频暂时过电压，潜供电流，操作过电压，金属氧化物避雷器主要参数，特高压电气设备的绝缘水平等。
When bearing operating voltage, switching overvoltage or atmospheric over-voltage in the process of operating, the transmission line are likely to occur insulation flashover accident.
输电线路在运行过程中承受工作电压、操作过电压或大气过电压时，都可能会发生绝缘闪络事故。
It connected with electric power net has been operating, function and structure of the system can satisfy operating request and actively reduce switching overvoltage of shunt capacitors.
经试验和挂网试运行考核，装置性能与结构均满足运行的要求，能有效降低电容器组操作过电压。
With the increment of working voltage for the long-distance transmission line, the switching overvoltage in large power stations is threatening the insulation safety of large generators.
随着远距离输电线路电压等级的提高，大型电站中的操作过电压威胁着大型发电机的绝缘安全。
This paper describes the mechanism that multiple reignition of breaker can restrain or increase progressively the switching overvoltage during switching off inductive or capacitive load.
论述了开关在开断感性或容性负载时多次重燃对过电压的抑制或递升机理。
Internal overvoltage is called switching overvoltage or resonance overvoltage, and it threatens the safe operation of electrical equipment and the personal security of operating personnel.
内部过电压又称操作过电压或谐振过电压，对电气设备的安全运行和操作人员的人身安全构成严重威胁。
In substations, Switching operation will give rise to transient overvoltage.
在变电站内，开关的操作将产生瞬态过电压。
In a building, how do we provide for protection against overvoltage switching?
在一幢建筑里，我们如何防护过电压转换？
Through analysis and using computer programs, the whole-process simulation and calculation is achieved, the maximum overvoltage value when switching on and off the capacitor being attained.
根据分析和利用计算机程序实现了全过程的模拟及计算，得到电容器分、合闸的最大过电压值。
This paper builds a general model of switching devices during different turnoff mode, and analyzes the relationship between the overvoltage and the circuit parasitic parameters.
本文建立了开关器件在不同关断方式下的统一模型，分析了关断过电压与电路参数之间的关系。
At last, vacuum circuit breaker switching capacitance group overvoltage formative causes and electrode refining for lessening reignition are discuss.
最后简要分析了真空断路器开断电容器组过电压的形成原因及为减少重燃的电极老炼措施。
The switching-surge overvoltage of the vacuum circuit breaker can seriously imperil safety of electric system and equipment.
真空断路器的操作过电压严重威胁电力系统和设备的安全。
The relation between switching current overvoltage and parameters of snubber components is founded according to mathematics modeling.
通过数学建模，找出换流尖峰电压与换流缓冲器保护元件参数之间的关系。
An overvoltage protection control circuit includes a voltage conversion circuit, a voltage comparison circuit, and a switching circuit.
本发明提供了一种过压保护控制电路，包括：电压转换电路、电压比较电路和开关电路。
An overvoltage protection control circuit includes a voltage conversion circuit, a voltage comparison circuit, and a switching circuit.
本发明提供了一种过压保护控制电路，包括：电压转换电路、电压比较电路和开关电路。
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