The design of the filter circuit, starting current check circuit and switching surge absorption-protection circuit in an auxiliary circuit of PFC is analyzed.
对功率因数校正器辅助电路中的滤波电路设计、起动电流抑制电路的设计和开关的浪涌吸收保护电路的设计进行了分析。
This paper introduced the new IEC60076 -4 test guidance of lightning surge and switching surge for power transformer and reactor, which is the new edition of IEC722 (1982).
介绍了新的IEC60076—4电力变压器和电抗器雷电冲击和操作冲击试验导则，它是IEC722（1982）的新版，比原导则增加与完善了新的内容。
The switching surge phenomena caused by line energization with out closing resistors but with MOA at both ends of the line, MOA's working conditions and insulation coordination are included.
包括线路断路器不装合闸电阻，只靠两端避雷器保护时过电压的特点，避雷器的工况及绝缘配合等。
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 influence of impulse current waveform on 50 Hz continuous current of switching type surge protective device(SPD) was studied.
研究了冲击电流波形对开关型电涌保护器（SPD）的工频续流的影响。
Suppression of Inductive Switching or Other Transient Events Such as EFT and Surge Voltage at the Circuit Board Level.
抑制各种感性负载切换或各种瞬间噪声在电路板中产生的EFT和浪涌电压。
Suppression of Inductive Switching or Other Transient Events Such as EFT and Surge Voltage at the Circuit Board Level.
抑制各种感性负载切换或各种瞬间噪声在电路板中产生的EFT和浪涌电压。
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