The alternative principle of generator AVR
The alternative principle of generator AVR
1. The first thing to distinguish Generator AVR Categories: PMG offers the power and supplies power auxiliary winding, self excitation power supply.Basic principle is: self-excited generator AVR can replace the other types, but also should see applications;
2. The power supply voltage range is same or close.AVR is usually 180-250 vac.
(3) is close to the excitation voltage and current range, usually silicon controlled rectifier half-wave rectifier is under 90 v, current in 4-15 a.For example: Stanford is 3 a, 90 v.Note in the current brush electric ball very people, often more than 20 a - 75 - a;
4. The test voltage was close to best, but if different, can use the transformer transformation.Usually detect electrical subsection 2 kinds: one kind is taken from the center of the phase voltage and line voltage tap (more than 300 kw of l group generally no center tap), in our country usually is 220-230 vac another are taken from the line voltage: 380-400 vac.
5. Special function is the same.For example: needs and machine needs a DROOP or auxiliary input function;