Electronic trigger for circuit breaker has potentiometer set to remove value on isolating or removing trigger from breaker and set to normal state on connecting or inserting trigger

摘要

The device has a microprocessor (9) or memory element for trigger values with a setting device and a reset device for resetting trigger values to trigger parameters corresponding to a safe condition. The reset device has an induction coil (4) and an electrical potentiometer (8) that is set to a remove value on isolating or removing the trigger from the breaker (2) and is set to the normal state on connecting or inserting the trigger.