Step 1 : Check Exciter Stator Continuity and Resistance Disconnect exciter stator leads F+ & F- from the voltage regulator red and black leads in the figure below. Using the meter, check the continuity between the F+ & F- wiring. If you have NO continuity between F+ & F-, you have a failed exciter stator winding.
How does a motor exciter work?
It has a stator that is wound in the same fashion as a normal induction motor and it has a rotor that that has DC fields mounted on the rotor. The exciter provides the power to the electromagnets that form the poles on the rotor that in turn follow the rotating magnetic field from the system.May 8, 2016
What is the purpose of exciter in generator?
A Exciter. The exciter supplies direct current to the field winding of the generator, at whatever voltage is required to overcome the resistance of the winding.
How an exciter works in an alternator?
The exciter rotor generates electrical energy as it spins because the magnetic field of the excitor stator cuts through the copper windings of the excitor rotor, inducing a voltage.
Why exciter requires in an alternator?
A Exciter. The exciter supplies direct current to the field winding of the generator, at whatever voltage is required to overcome the resistance of the winding. This is very rarely used for new generators today.
When exciter fails alternator How does it work?
Again when loss of field occurs due to failure of exciter but not due to problem in the field circuit (field circuit remains intact) there will be an induced current at slip frequency in the field circuit. This situation makes the relay to pick up and drop off as per slip frequency of the induced current in the field.
What is the purpose of an exciter?
An exciter (also called a harmonic exciter or aural exciter) is an audio signal processing technique used to enhance a signal by dynamic equalization, phase manipulation, harmonic synthesis of (usually) high frequency signals, and through the addition of subtle harmonic distortion.
Which excitation is used in alternator?
The AC excitation system consists of an alternator and thyristor rectifier bridge directly connected to the main alternator shaft. The main exciter may either be self-excited or separately excited. The AC excitation system may be broadly classified into two categories which are explained below in details.
How do you excite a field on a generator?
Start the generator. While depressing the trigger on the drill, spin the drill chuck in reverse direction. This will excite the field and the generator will now produce electricity.
What do you mean by exciter?
Definition of exciter 1 : one that excites. 2a : a generator or battery that supplies the electric current used to produce the magnetic field in another generator or motor. b : an electrical oscillator that generates the carrier frequency (as for a radio transmitter)