欠电压脱扣器在万能式断路器上是十分常见的一件电压保护装置，该装置的失效直接影响到断路器的正常运行。
An undervoltage tripper is a very popular electrical protection device for universal breaker, which will directly affect the normal operation of a breaker if it breaks down.
HMGB11A型灭磁及转子过电压保护装置经实践检验，效果良好，减少了工作量，提高了发电机的可靠性。
The effectiveness of HMGB11A type ME an ROVP is proved in engineering practice. Workload is reduced and generator's reliability is improved.
另一种保护装置称为瞬态电压抑制二极管或TVS二极管。
Another protection device called Transient Voltage Suppression diode or TVS diode.
可按用户要求提供特殊电压泵型，进行水位自动控制，并配有自动保护装置及控制柜。
According to user requirements to provide special voltage pump type, the water level automatic control, and is equipped with automatic protection device and the control cabinet.
分析了轨道交通直流牵引供电系统的直流设备电压型框架保护装置与轨道电位限制装置定值和时间配合存在的问题及解决办法。
It analyses the rail transit DC traction power supply system voltage type frame protect device and rail voltage limited device matching problems that solve their adjusting value and time.
对现有多功能天车的漏电保护装置及存在的问题进行了分析，对新一代漏电电压在线监测装置的开发思路进行了阐述。
The paper introduces existing problems of low-voltage leakage protector in the power supply system of coal preparation plant application and puts forward the methods of solving the problems.
对现有多功能天车的漏电保护装置及存在的问题进行了分析，对新一代漏电电压在线监测装置的开发思路进行了阐述。
The paper introduces existing problems of low-voltage leakage protector in the power supply system of coal preparation plant application and puts forward the methods of solving the problems.
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