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You step down voltage from an AC generator with a transformer.You step down frequency from an AC generator with a motor/generator set, or with an inverter. This is not a common thing to do.
You change the speed of rotation.
An electrosurgical generator is a piece of medical equipment. The generator takes mains AC current and turns it into radio frequency (>100Khz) AC current. This current can then be used to cause a tissue effect in a patient (i.e. cutting, coagulation, fulguration).
An ac generator produces ac, a dc generator produces dc, it all depends on the generator.
Alternator and ac generator is equal
You step down voltage from an AC generator with a transformer.You step down frequency from an AC generator with a motor/generator set, or with an inverter. This is not a common thing to do.
You change the speed of rotation.
It's speed and the number of poles.
An electrosurgical generator is a piece of medical equipment. The generator takes mains AC current and turns it into radio frequency (>100Khz) AC current. This current can then be used to cause a tissue effect in a patient (i.e. cutting, coagulation, fulguration).
what is the construction of ac generator
over speed control is recommended for all prime mover driven generator to prevent over frequency operation of load connected to a system supplied by the generator and also to prevent possible over frequency operation of the generator itself from Ac system.
An ac generator produces ac, a dc generator produces dc, it all depends on the generator.
Alternator and ac generator is equal
NO, generator always generating AC current,when commutator is used,at that time AC is converted in DC.and due to this generator is called dc generator.
DC generator
Ac current. Ac current is easily controlled for voltage and frequency. The diesel engine runs a generator that generates AC current for use in the electric drive motors on each drive wheel.
The frequency in Hz is governed by the speed of a generator. The voltage is governed by the winding and types of connections of these windings.