3-phase alternative current voltage regulation
AC chopping voltage regulation technology
AC digital control voltage regulation
adequacy of voltage regulation capability
Alter current voltage regulation
Automatic Voltage Regulation
automatic voltage-regulation
Coarse fine change-over voltage regulation
constant-voltage regulation
Control of phase modulation and voltage regulation
DC voltage regulation coefficient
Dynamic Voltage Regulation
frequency modulatoin and voltage regulation
Independent voltage regulation for each phase
instantaneous voltage regulation characteristic
intelligent power voltage regulation