直流绝缘监视继电器的设计

Design of DC Insulation Supervisory Relay

在直流系统中,为了防止由于两点接地可能发生误跳闸而引起严重的后果,采用桥式原理,设计了连续工作且足够灵敏的绝缘监视继电器。分析了直流绝缘监视继电器的动作原理,给出了确定继电器参数的两个基本条件及继电器原理简图。介绍了绝缘监视继电器必须通过回路计算来确定继电器的动作电流和内阻的方法。

In DC system, in order to prevent two points grounding from error tripping operation to cause serious result, with adoption of bridge principle insulation supervisory relay in continuous work with enough sensitivity was designed. Analysis was made to the operation principle for the relay, giving out two basic conditions of the relay parameter and its principle diagram. Introduction was made to that must settle the operating current and internal resistance of the relay via return circuit calculation.