WAlaska Interconnection
WAnchor portal
WBuchholz relay
WTalcher–Kolar HVDC system
WDisconnector
WEyachtal Span
WFawley Tunnel
WGrounding transformer
WHVDC HelWin2
WMEPSO
WMHW-RTG
WMinami-Fukumitsu Frequency Converter
WMOSFET Gate Driver
WNEMA wattage label
WPlug-in box (stage lighting)
WRotary converter plant
WSakuma, Shizuoka
WShin-Shinano Frequency Converter
WSuez Canal overhead powerline crossing
WThird-brush dynamo
WTyson turbine
WUtilization factor
WV curve
WWireless powerline sensor