Leroy Somer R448 AVR Replacements

EA448

Automatic Voltage Regulator 160 VDC 10 Amp

EA448 Permanent Magnet Generator or A.R.E.P or Auxiliary Winding type generator voltage regulator is a compatible replacement for Leroy Somer R448, R449, R438, and AEM110RE016 and also Olympian FG Wilson 922 124.

BrochureManual3D Display

Features

  • < ± 0.5% Regulation
  • Load Acceptance Module (LAM)
  • 50/60 Hz Selectable
  • Under Frequency & Exc. Max Protection
  • Single Phase Or Three Phase Voltage Sensing Optional
  • Soft Start Voltage Ramping
  • Normal Rapid Response Time (Option)

Specifications : EA448

Sensing Input Terminal 0-110V = 95~140V
Terminal 0-220V = 170~260V
Terminal 0-380V = 340~520V
Frequency 50/60 Hz Selectable
Power Input Voltage 40~150 VAC, 3 Phase
Auxiliary Winding 6~150 VAC (No load rms)
Voltage Output Max. 160 VDC @ 120 VAC
Output Current Max. 10A
Response Time 0.3~1sec. @ ± 20% Voltage Vibration
Current Droop Max. 4% @ P.F.=0.8
Voltage Regulation < ± 0.5% (with 4% engine governing)
External Voltage Adjustment ± 10% @ 1 KΩ
Voltage Build Residual volts at AVR terminal > 5 VAC
LAM Voltage Droop Rate 10% & 15% Selectable
Environment Operating Temperature : -40~60 °C
Storage Temperature : -40~85 °C
Relative Humidity : Maximum 95%
Vibration : 1.5G @ 5~30 Hz , 5.0G @ 30~500 Hz
AVR Controls Functions VOLT : Voltage Adjustment
STAB : Stability Adjustment
V/HZ : UFRO Knee Point Set
EXC.MAX : Excitation Current Limit
STAT : Droop Adjustment
Dimensions 203.0(L) x 153.0(W) x 60.5(H) mm
Weight 970 g ± 2%

Mechanical Specifications

Mechanical Specifications

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