What is an Antipumping relay ?

Answer Posted / mohammed yousuf khan

Anti-pumping relay is usually used for ACB operation. Once the supply is given to the closing coil of ACB, the closing coil operates and gives pulse input to the relay. so the relay activates and maintains the ACB in closed position. Continuous supply to the closing coil damages it.
Generally a contactor or auxiliary relay is used as an anti-pumping relay

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