202873 ⎘
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means; Details; Means for extinguishing or preventing arc between current-carrying parts; Impedances connected with contacts the impedance being inserted only while opening the switch
MECHANICAL CURRENT CUT-OFF DEVICE FOR HIGH-VOLTAGE DIRECT CURRENT WITH A CAPACITOR IN A SECONDARY PATH, FACILITY AND METHOD USING SUCH A DEVICE
#2Electronic device with case having sheath-piercing tapered sections
#3Electrical DC switching system
#4Switch having an arc-quenching device
#5Zero-current pulse with constant current gradient for interrupting a direct current
#6Fast switch
#7Medium and high-voltage electric switch with return on closure and an insertion device for inserting a resistance
#8Hybrid circuit breaker