Strict theoretical deduction shows that adaptive current fast - trippingprotection can be used not only on single - circuit line, but also on double - circuit line.
The operation characteristics of fast tripping current protection, adaptive current protection and distance protection are compared.
比较了电流速断、自适应电流速断及距离保护的动作特性。
3
Relay box is an operational device to tripping and closing of breaker instructed by protection, breaker controlling unit, monitor unit, and auxiliary device of breaker.