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The role of relay protection
- Nov 30, 2017 -

In power system protection device failure, relay protection device can automatically, selectively will occur fault components are removed from the power system to ensure trouble-free part back to normal operation status, fault components continue to avoid damage, in order to reduce the scope of power;

If the protective device is in abnormal operation condition, the relay protection device can respond in time, according to the maintenance condition, signal, reduce load or skip action instructions.

At this time, it is generally not required to protect the rapid movement, but according to the damage to the power system and the components of the damage to certain delay, to avoid unnecessary actions.

At the same time, the relay protection device is also the monitoring device of the power system, which can measure the system current voltage in time to reflect the running state of the system.