Generator problems

1, the slip ring is not divided into positive and negative poles, especially for new units. For the old unit, due to the existence of residual magnetism, this time we have to properly consider the positive and negative, if the connection is reversed may lead to unsuccessful excitation, the wiring can be solved by reversing it.

2, the excitation coil is not in the main winding, but in the rotor.

3, the main winding of the generator wire diameter is determined by the rated output current of the generator, the larger the wire diameter, the larger the current-carrying capacity, representing the generator can output more current. The number of turns is to determine the output voltage, this is the formula Generator voltage Eq = 4.44 * n * n * f * A * i

n is the number of zaps

f is the frequency

A is the magnetic inverted

i is the excitation current

4, and 3 is the same, it is determined by the excitation current and excitation voltage

5, the rectifier if the is completely broken, there is no excitation voltage input, the generator is demagnetized. If it is partially broken, the generator will have a smaller control angle, under-excitation and other problems, or demagnetization.

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(Here please specify what generator your generator is, all the above answers are based on the self-parallel excitation method, other methods may be slightly different but the principle is the same) wire diameter