Mechanical system for fixing a current supply to a connecting pin of a vacuum connector
PL273283A1
System for adjusting position of arc suppression chamber in a vacuum switch, in particular a vacuum contactor
PL273284A1
Suspension system for a vacuum-type arc suppression chamber in a vacuum switch, in particular a vacuum contactor
PL270382A1
Arrangement of contacts of a manually operated istolating switch
PL257536A1
Circuit arrangement for detecting instants of current supply stwitching on or off in a circuit being tested
PL256678A2
Release circuit for a current differential circuit-breaker
PL255798A1
Two-interrupter electric disconnector arrangement
PL255431A1
Power supply for electromagnetically operated dc actuator of an electric switch,in particular vacuum one
PL254277A1
Joint for mounting switch- and control-gear as well as monitoring equipment in openings of control boards and panels
PL252830A1
Thyristor triggering circuit
PL251191A1
Electronic circuit arrangement for testing turn-to-turn insulation of induction coils
PL249035A1
Connection arrangement between functional members of electrical equipment in particular arrangement of interconnections between push-button switches and of coupling between them and their push-button actuators
PL245338A1
Dc solenoid actuator supply circuit for electric switches in particular of vacuum type
PL243236A2
Control system of dc electromagnet drive of electric switch,especially of vacuum switch
PL240641A1
Driving mechanism of isolating vacuum switch with manualdrive,especially of disconnector or disconnecting switch
