STUDY ON APPLICATION OF DECOUPLING CIRCUIT TO IC SYSTEM OF NUCLEAR POWER PLANT

摘要

Electrical isolation is required for signal exchanging between redundant I&C divisions. Relay and isolation amplifier are often used as the isolation device for binary and analog signal transmission. Simple isolation device is not enough to make the electrical isolation. Decoupling circuit which is the combination of isolation devices and an independent power supply can totally compensate the insufficiency of simple isolation device and prevent the electrical fault propagating along the signal exchanging circuit.