Leroy Somer R438 Voltage Regulator Wiring Diagram
Installation and maintenance leroy somer 3971 en 2010 11 f r438 a v r.
Leroy somer r438 voltage regulator wiring diagram. R438 avrs 3971 en 1 supply 1 1 arep excitation system for both arep pmg excitation systems the alternator voltage regulator is the r438. 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. 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. The r438 is among one of the oldest regulators but one of the best leroy somer has to offer.
R438 avr for shunt arep or pmg alternators r438 is an analog avr. It is designed for alternators with a arep or pmg excitation. The first winding has a voltage in proportion. Voltage regulator for leroy somer r438 cat olympian 922 045 this new exact replacement avr replaces.
With arep excitation the r438 electronic avr is powered by two auxiliary windings which are independent of the voltage match circuit. 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. It can be supplied with power either by a power vt or by the arep field. It is designed to fit as standard on a50 to a 54 alternators.
For shunt application we recommend the r250 or r220 which will provide you the necessary regulation control. R438 is performant in terms of voltage regulation simple to set to use and is reliable. R438 controls the excitation current in order to maintain the output voltage of the alternator. Voltage regulator r 449 i ntroduction to the r 449 leroy somer réf.