The R438 AVR is powered by two auxiliary windings which are self-sufficient of the voltage match circuit, the first winding has a voltage in proportion to that of the alternator(characteristic shunt), the second has a voltage in proportion 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 principle ensures that regulation is not unnatural by distortions generated by the load, This excitation system consists of a PMG ( permanent magnet generator), which is fitted at the rear of the machine and connected to the R438 AVR. The PMG supplies the AVR with constant voltage which is independent of the main alternator winding.
CHongqing Yokden E&M Equipment Co., Ltd, located in Chongqing's new high-tech industrial development zone, is specialized in Genset Spare Parts:
--Digital multi-function meters used for different kinds of engines;
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--MPU, Oil pressure sensor, Temperature sensor, fuel level meter and so on;
--Mechanical meters used for different kinds of engines;
--Different kinds of Solenoids;
We have been dedicated to promoting generator set's automatic control since our company was established. Generator's modification and best automatic control products as well as OEM and ODM services are offered for lots of generator users. Our aim is "professional technology, superior service".
We supply many products with reliable quality and lower prices, such as digital generator meters, generator controllers, sensors, solenoids by using internationally advanced micro-computer control chips. Our products have won a good reputation among customers. We have an experienced automation R&D engineer team. Our veteran technical engineers and top project managers are wholeheartedly waiting for serving your companies.
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