Leroy Somer R438 Voltage Regulator Wiring Diagram

Voltage regulator r 449 i ntroduction to the r 449 leroy somer réf. The first winding has a voltage in proportion. R438 controls the excitation current in order to maintain the output voltage of the alternator.

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It is designed to fit as standard on a50 to a 54 alternators.

Leroy somer r438 voltage regulator wiring diagram. Voltage regulator for leroy somer r438 cat olympian 922 045 this new exact replacement avr replaces. It is designed for alternators with a arep or pmg excitation. It can be supplied with power either by a power vt or by the arep field. With its regulation of 1 0 the r438 can hold its voltage even in the worst.

R438 is performant in terms of voltage regulation simple to set to use and is reliable. R438 avrs 3971 en 1 supply 1 1 arep excitation system for both arep pmg excitation systems the alternator voltage regulator is the r438. China generator engine spare parts avr circuit diagram r438 replace avr for leroy somer alternator find details about china avr r438 automatic voltage regulator from generator engine spare parts avr circuit diagram r438 replace avr for leroy somer alternator fuan safe electronic co ltd. Leroy somer r 438 ls a leroy somer r438ls c leroy somer voltage regulator aem110re017 avr leroy somer voltage regulator aem110re003 avr sdmo voltage regulator 330410127 avr sdmo voltage regulator 330410164 avr sdmo voltage regulator 330410334 avr fg wilson voltage regulator 922 045 avr.

For shunt application we recommend the r250 or r220 which will provide you the necessary regulation control. The r438 is among one of the oldest regulators but one of the best leroy somer has to offer. 3 3 electrical faults fault action effect check cause the alternator builds up and its voltage is still correct when the lack of residual magnetism battery is removed. R438 avr for shunt arep or pmg alternators r438 is an analog avr.

Installation and maintenance leroy somer 3971 en 2010 11 f r438 a v r. With arep excitation the r438 electronic avr is powered by two auxiliary windings which are independent of the voltage match circuit. Leroy somer r438 is used with arep or pmg excitation on lsa42 3 lsa43 2 lsa44 3 lsa44 2 leroy somer models. 3219 gb 4 33 b 07 01 1 introduction to the r 449 1 1 application the r 449 voltage regulator is of a shunt type.