Exciter controls the magnetic field in the generator system and controls the output voltage and/or current.
It can be found on an electrical generator set. It is used to supply the DC voltage for the field coils.
its creates the magnetic field trough the electricity,which we called exciter for it.we send some electric shocks to the field coils,then it will magnetized the stater of the generator. When Diesel or petrol engine rotates the rotter of the generator, EXCITED stater act as a magnet. Depend on alternator`s design,rotter or stater one always EXITED to be a magnet. When engine turns the Alternator against the magnetic field,electricity is produced.
I'm no expert but I believe the high frequency is due to the number of poles (North-South) of the pilot exciter. The frequency of a generator is directly link to its speed and the number of poles. Most generators will run at 1800RPM and will have 4 poles to achieve 60Hz. The pilot exciter being on the same shaft will also run at 1800 rpm but will probably have more then two poles. finding the formula for frequency of a generator should help you in answering your question. The next question should be why would you build a pilot exciter with multiple poles and a high frequency? The output of the pilot exciter is going to be rectified to DC so it would make sense to do it with a high frequency and get a smoother DC signal out of the rectifier.
ceiling voltage is the maximum field voltage that the exciter can withstand before going into unstability
Alternator and ac generator is equal
In the operation of a standard generator, the exciter rotor and stator provide DC-type energy to an AC-type supply. This allows the exciter to maintain a constant DC source.
exciter is a component in a electrical generator and or the low power rf stages of a radio transmitter
Generator Exciter is a new way for people to generate serial keys for pirated software for various companies. This is well known as something called a "keygen".
The rotor must have a magnetic field in order to generator voltage in stator winding. The exciter circuit generates this DC filed in the rotor.
It can be found on an electrical generator set. It is used to supply the DC voltage for the field coils.
its creates the magnetic field trough the electricity,which we called exciter for it.we send some electric shocks to the field coils,then it will magnetized the stater of the generator. When Diesel or petrol engine rotates the rotter of the generator, EXCITED stater act as a magnet. Depend on alternator`s design,rotter or stater one always EXITED to be a magnet. When engine turns the Alternator against the magnetic field,electricity is produced.
I'm no expert but I believe the high frequency is due to the number of poles (North-South) of the pilot exciter. The frequency of a generator is directly link to its speed and the number of poles. Most generators will run at 1800RPM and will have 4 poles to achieve 60Hz. The pilot exciter being on the same shaft will also run at 1800 rpm but will probably have more then two poles. finding the formula for frequency of a generator should help you in answering your question. The next question should be why would you build a pilot exciter with multiple poles and a high frequency? The output of the pilot exciter is going to be rectified to DC so it would make sense to do it with a high frequency and get a smoother DC signal out of the rectifier.
If a generator turns off or will not start up due to loss of magnetism, it is possible to use a 12 volt battery to make it work. You have to remove the exciter fields, measure the exciter field resistance, connect the F+ to the positive end of the battery, hold the F- lead near the insulated part of the lead wire and place it on the negative end of the battery for 5 to 10 seconds, then reconnect F+ and F- to the regulator.?æ
Because the voltage is fixed (within allowable limits) whereas the current varies according to load.
Static exciter mounts as part of the motor control package, separate from the motor. Rotor exciter mounts on the rotor of the motor.
Exciter - band - was created in 1978.
Exciter - album - was created in 2000-06.