AVR automatic voltage regulator R450 wiring connection pdf | #avr #avrwiring #leroysomer #R450avr
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POWER SUPPLY Both the SHUNT/AREP & PMG excitation systems are controlled by the AVR.
2.1 - AREP excitation system
With AREP excitation, the electronic AVR is powered by two auxiliary windings which
are independent of the voltage sensing circuit.
The first winding has a voltage proportional to the alternator main voltage (Shunt
characteristic), the second one has a voltage proportional to the stator current
(compound characteristic : Booster effect).
The power supply voltage is rectified and filtered before being used by the AVR
monitoring transistor. This system provides the machine with a short-circuit current capacity of 3 IN for 10 s. The rotating switch should be in the AREP
position (see 3.2.3).
Пікірлер