minimum closing voltage 最低合操作电压
Voltage closing time 电压关闭时间
closing at full-voltage 全电压关合
Zero Voltage Closing control 零电压合闸控制
Opening and closing of the contact points creates induced voltage.
触接点的开启与闭合产生感应电压。
The driving voltage is the major factor for shortening the closing time.
发现影响电磁阀关闭速度的主要因素是驱动电压的大小；
At rated control supply voltage less than 35% under-voltage should prevent breaker from closing.
在额定控制电源电压低于35%时，欠电压脱扣器应防止断路器合闸。
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