High-voltage electric circuit breaker comprising series-connecte
High-voltage electric equipment cell
High-voltage electric switch with arc extinguishing device using
High-voltage gas-blast puffer type circuit-breaker
High-voltage gas-type circuit-interrupter having improved gas-pa
High-voltage power switch
High-voltage puffer-type compressed-gas circuit-interrupter asse
High-voltage switch
High-voltage switch
High-voltage switch
High-voltage switch and its use
High-voltage switch with a closing resistor
High-voltage switchgear
High-voltage Y-shaped dead tank circuit interrupter
High-voltage, blast-actuated power switch having a collapsible c
Higher rated double-pole trigger switch
Higher rated double-pole trigger switch
Housing of a vacuum switching tube
Hybrid circuit breaker
Hybrid circuit breaker