绕组支路断线保护装置 divided conductor protection
变流器断线保护 breakwire protection inverter ; Converter line protection
为避免该类事故的发生，采用新型的具有保护零线断线保护功能的断路器是非常有益的。
In order to avoid this kind of accident, the using of new circuit breaker with protection function of zero curve broken is extremely beneficial.
介绍了在三相四线制供电系统中，中线的作用，断线的危害，以及一种简单可靠的断线保护电路。
The paper introduced the effect of neutral wire the harm of open circuit and a kind of simple credible open circuit protection method.
PT断线作为电力系统中一种常见的故障，能否及时有效地进行判别，是继电保护装置正确动作的前提条件。
It is the precondition for protection's correct operation to verify PT breaking in time, which is a common fault in power system.
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