EROY SOMER AVR R438

LEROY SOMER AVR R438
1) CE and ISO Certification
2)12months warranty
2) AVR:R448,R449,R230,R250,R438
LEROY SOMER AVR R438

The circuitry of the R438 Automatic Voltage Regulator(AVR) provides closed loop control of the generator output voltage by regulating the exciter field current.


SPECIFICATION:
Voltage regulation: +/- 0.5%
Short circuit capability :3 × lrated for 10 seconds (AREP or PMG excitation )
Voltage sensing :
95 to 140 volts (50/60 Hz ) or
170 to 260 volts (50/60 Hz ) or
340 to 520 volts (50/60 Hz )
Response time :
Normal ( 1 sec ) for +/- 20% voltage variation
Or rapid (0.3 sec ) for +/- 20% voltage variation
Remote voltage adjustment range of : +/- 5%
1000 series alternators do not have PMG option