unit - vent
- unit
- unit auxiliaries
- unit boiler turbine arrangement
- unit cable
- unit capacitor
- unit commitment
- unit governor
- unit impulse response
- unit input/output curve
- unit load
- unit of charge
- unit of conductivity
- unit of current
- unit of electricity
- unit of power
- unit of resistance
- unit of string
- unit of voltage
- unit ordering
- unit protection
- unit size
- unit test
- unit transformer
- unit warm-up time
- unit-length capacitance
- unit-to-unit switchboard
- united power grid
- units mix
- unity power-factor test
- universal fuse link
- unlaminated rotor
- unlatch
- unlatching
- unlike poles
- unload
- unload characteristic
- unloaded Q-factor
- unloaded reversal
- unloaded sag
- unloader
