Description
An anti-pumping relay is an electrical control device used in circuit breakers or switchgear to prevent repeated automatic re-closure of the breaker after a fault has occurred. Its primary function is to inhibit “pumping” action, which is the continuous on-off operation of the breaker due to residual energy or voltage fluctuations. The relay monitors the breaker’s closing and opening operations and prevents it from re-closing rapidly in case of a fault. This helps to avoid potential damage to the electrical equipment and ensures a stable power supply in the system.
