safety voltage

In this paper, some problems about IGBT's operation characteristics are discussed. A driving mode called zero voltage commutation and zero current commutation ( ZVC/ ZCC) technique with high efficiency and safety is introduced.

对IGBT的工作特性及存在的问题进行了深入探讨，详细介绍了用于提高大功率IGBT电桥的开关效率和安全性的ZVC／ZCC驱动模式。

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It is an important technical problem to neutral grounding mode of the electric power system which associates with voltage level, network structure, and insulation level, reliability of power supply, protective relaying, electromagnetic interference, and personal safety.

电网的中性点接地与电压等级，网路结构、继电保护的状况、电网的绝缘水平、供电可靠性要求等都紧密相关。

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The Protective Device of the Increase-safety High-voltage Motor and the Set of Its Terminal Box

增安型变频调速三相异步电动机的设计增安型高压电动机的保护及其接线盒设置

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Low Voltage Distribution of Technical Security Means and Electrical Safety

低压配电的技术安全手段与用电安全

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The entire high-voltage onboard network complies with the most stringent safety standards.

整个高电压板载网络符合最严格的安全标准.

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As a device to restrain the operating over voltage and unloaded over voltage and counteract capacitive character charging current in long transmission lines, inductor play an important role in the safety and stability of the whole electric power system.

电抗器作为限制电力系统的操作过电压和空载过电压、抵消高压输电线路的容性充电电流的重要设备，对电力系统的安全稳定运行起着至关重要的作用。

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Safety use of capacitor must be within the rated voltage ( or category voltage ) and the permissible current.

电容器安全使用条件不仅受额定电压 ( 或类别电压 ) 的限制,而且受额定电流的限制.

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The Protective Device of the Increase-safety High-voltage Motor and the Set of Its Terminal Box

增安型高压电动机的保护及其接线盒设置

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So the grid department proposed the LVRT ( Low Voltage Ride Through) requirement of wind turbine to keep the stability and safety of grid system in this condition.

因此，在这种情况下，为了维护电力系统运行的稳定性和安全性，电网部门提出了风力发电机组的低电压穿越要求。

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When carbon black content was 3 wt%, a heating temperature at safety voltage of 250 ℃ was obtained.

当炭黑含量为3%时，材料在安全电压下发热温度达到250℃；

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