FIELD: electricity.
SUBSTANCE: invention relates to a coil actuator for a switching device which can be actuated during its operation from an open position to a closed position so as to allow a current flowing therethrough, and from closed position to open position so as to interrupt such current flowing. Coil actuator comprises a coil electromagnet arranged to move between a rest position and an actuating position for actuating switching device, and also comprises electronic means arranged to count an operation time, which is indicative of duration of actuation of switching device.
EFFECT: providing diagnostic functional testing of time of opening without using additional external equipment.
20 cl, 5 dwg
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