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is small may be neglected is useful is considerable
varying the D.Cexciter voltage varying the reluctance of the air gap regulating the speed of prime mover shorting out part of the armature windings
voltage regulators field rheostats reverse power relays prime mover governors
To cut out generators when they are no longer required To cut in additional generators automatically as required To divide the KW load equally between generators operating in parallel To divide reactive current between generators operating in parallel
instantaneous voltage average voltage RMS voltage peak voltage
connected load prime mover speed field excitation generators rated voltage
droop drop dip regulation
the recommended current and voltage rating higher current and voltage rating higher current and lower voltage rating lower current and higher voltage rating
Current and voltage may be in phase Current may lead the voltage Current may lag the voltage All of the above
speed of the prime mover AC excitation to the field DC excitation to the field DC excitation of the voltage regulator
AC voltage to the armature AC voltage to the field DC voltage to the armature DC voltage to the field
inductive resistance combined capacitate
residual magnetism voltage regulator electrical current for excitation the other running generator
Low voltage protection circuit Non-renewable link fuse Renewable link fuse Low voltage release circuit
open the generator circuit breaker switch the voltage regulator to "manual" decrease the field excitation to minimum reduce the load on the unit
when so as such that though
prime mover speed exciter output voltage load on the alternator number of poles
connected load prime mover speed field excitation generators rated voltage
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