Specification SENSING/POWER INPUTVoltage90-480VAC/40-150VAC, 3 phaseMAGNETIC FIELD OUTPUTVoltageMax 160VDC at 120VAC inputCurrentMax 10APRESSURE REGULATING ACCURACY< +/-1% (with 4% engine governing) Products Description Specification of Leroy Somer R448 AVR Steady state voltage regulation 0.5% Short circuit capability: 3 x Irated for 10 seconds (AREP or PMG excitation) Voltage sensing: 0-110v Terminals = 95 to 140 volts (50/60 Hz) or0-220v Terminals = 170 to 260 volts (50/60 Hz) or0-380v Terminals = 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: 5% Load Adjustment Module (LAM): On load impact, the rotation speed of the generator set decreases. When it passes below the preset frequency threshold, the LAM causes the voltage to drop by approximately 15% and consequently the amount of active load applied is reduced by approximately 25% until the speed reaches it's rated value again Adjustment capability of R448 Leroy Somer Alternator AVR: The Leroy Somer R448 Voltage Regulator features the following adjustment capabilities (Please note that no adjustments should be made prior to careful consultation of the alternator installation and maintenance manual):n Quadrature droop adjustmentn Alternator output voltage adjustmentn Stability adjustmentn LAM Threshold (underspeed) adjustmentn Excitation ceiling adjustmentn Selection of single phase or three phase* voltage sensingn Selection of normal or rapid response timen 50 Hz or 60 Hz frequency optionn Remote voltage adjustment optionLAM enable/disable option