Voltage regulator for STAMFORD alternators fed from the alternator´s main startor.
SS440 AVR voltage regulators are designed to keep brushless alternators the output voltage stable in even when there are consumers load requirement sharp variations . The AVR SS440 controls the excitation current.
Using SS440 AVR the selection of the required voltaje setpoint is achieved in a simple and reliable way; it is also possible to regulate the type of response desired, more or less deliberately, in response to alternator power demand variations.
MAIN FEATURES
Nº MAIN FEATURES 1 Alternators in paralell Allowed 2 Regulation accuracy Better than +/- 1,5%. 3 Supply and sensing Main alternator 170-250V AC (2 half phase) 4 Frequency 50 / 60 Hz 5 Potentiometer Volts 6 Stability 7 UFRO 8 Potentiometer DROP 9 V/TRIM 10 EXC/TRIP 11 V /Hz Feature Falling 12 Voltage reduction start 45 Hz for 50 Hz alternators 13 55 Hz for 60Hz alternators 14 Max continuous ouput 4 A / 105 V DC 15 Max transient ouput (10s) 6 A / 105 V DC 16 External adjustment potentiometer (+/-7%) 1 KOhm / 1W Nº SPECIFICATIONS 1 Field resistance Minumum 15 Ohm 2 Feeding minumum voltage 5 V AC 3 Working temperatura From -20ºC up to 60ºC 4 Dimensions 140 x 152 x40 mm 5 Weight 242 g 6 Over-excitement protection 75 V DC delayed 10s 7 Low frequency protection 95% 8 Paralell coupling input Max: 0,33A / 10 Ohm