因此，作为失步保护后备的低电压保护也应具有反时限特性。
Thus, low voltage protection devices, served as lock-out protection reserve will also have characters uf inverse time-lag.
对我公司高压电机的低电压保护现状进行分析，指出存在的问题，并提出改进意见。
The article gives the analysis about the present low-voltage protection of high-voltage motor, sets forth the existing problems and brings out the proposal for improvement.
本装置配有过流保护、负序电流保护、零序电路保护、起动时间过长保护、低电压保护。
Over current protection, negative current protection, zero sequence current protection, over time of start protection and low voltage protection is configured in the device.
接地故障的低电压系统的保护是因为存在和电弧接地故障的低级别的性质相当严重的问题。
Ground-fault protection of low-voltage systems is a considerable problem because of the presence and nature of low-level arcing ground faults.
主要用途：低电压整流，高频转换开关和极性保护。
Applications: Low Voltage, High Frequency Inverters, and Polarity Protection Applications.
高低电压自动监测和保护功能； 产品按照每年365天，每天24小时运行长寿命设计。
With high and low voltage automatic monitoring and protection function is good for 365 days a year, 24 hours a day running time.
低电压电路（即使它们是低电压）必须和保护地连接，这样危险电压才能被检测出来。
The low voltage circuit (even with low voltage on it) shall also be connected with protective earth, thus the dangerous voltage can be detected.
发生自动关机的某些情形对于顾客而言可能是意外，但这种设计是为了保护电子元件避免由于低电压遭到损伤。
To an i Phone user, some of those shutdowns might seem unexpected, but they are designed to protect the device's electronics from low voltage.
发生自动关机的某些情形对于顾客而言可能是意外，但这种设计是为了保护电子元件避免由于低电压遭到损伤。
To an i Phone user, some of those shutdowns might seem unexpected, but they are designed to protect the device's electronics from low voltage.
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