63 Houston A generator inserted in series in a circuit to change its voltage. May be driven by an electric motor (in which case it is termed a motor-booster) or otherwise. .86 Compensator or ... 72 FREQUENCY CONVERTER converts the power of an A. C. glylstem from one frequency to another. with or without a change in 73 ROTARY PHASE CONVERTER converts from ... PHASE MODIFIER sometimes called a Syn0 _ronous Condenser. is a synchronous motor. running either idle oranbsp;...
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