Zero threshold surge suppressor
Zero-current a.c. switching system
Zero-current arc-suppression dc circuit breaker
Zero-phase current transformer
Zero-phase sequence protective device for faults within armature
Zero-sequence opening of power distribution
Zinc oxide lightning protector
Zinc-deposited base material for metallized capacitors and metho
Zinc-metallized base material for metallized capacitor and proce
Zinc-oxide surge arrester
Zine oxide surge arresters
Zipper fuse
Zone arc fault detection
Zone protective directional relay scheme
Zone selective interlock for a circuit breaker system
Zone selective interlock module for use with static trip circuit