It is self excited generator, no external excitation circuit.
A brush-less DC motor (BLDC)
Picks up electricity from the rotating parts.
Pigtail is a device to protect the brush from sparking
good question the use of slipring carbon brush is to give excitement to the generator , as the carbon brosh contact the rotor slip the rotaion and the speed of the generator increases we can say as an external force by anonrafee blueroz_27@yahoo.com
In construction, dc machine (either generation or motor) consists of 4 parts mainly.. 1: Field Magnets 2:Armature 3:Commutator 4:Brush & brush gear.
By reducing the output fusing of a generator, the total output of the generator will also be reduced. The capacity of the generator will remain the same but the fault trip point will be lowered.
By reducing the output fusing of a generator, the total output of the generator will also be reduced. The capacity of the generator will remain the same but the fault trip point will be lowered.
More due to the impedance levels in the generator
Brush type generators wear out over time of usage and brushes need replaced at a certain intervals too include any damage caused by pitting or scaring. Brushless generators produce a cleaner voltage sine-wave form verses the brush types. brushless type generators use an additional VCR (voltage control regulator) circuit that maintains a tight voltage level with less fluctuation it should be mentioned such a circuit increase the chances of generator failure due to component failure.
Less likely Less likely
Typical pricing of public utility will be always less than gas generator.
The question you asked is invalid, as a gas generator creates electricity and there is no such thing as an electric generator. However, a gas generator compared to a diesel one is less beneficial.