EA448B

Automatic Voltage Regulator 160Vdc 10Amp

EA448B PMG or A.R.E.P or Auxiliary Winding type generator voltage regulator, it's applicable in used with R726 Three Phase Sensing Module. EA448B is a compatible replacement for Leroy Somer R448, R449, R450, R438, and AEM110RE016 and also Olympian FG Wilson 922 124.
* It can be used with EPMG-1270 / EPMG-2470 to increase motor starting capacity.

All manufacturer names and numbers are used for reference purpose only and do not imply that any part is the product of these manufacturer.

Features

Voltage regulation less than +/-0.5%
Load acceptance module (LAM)
50/60 Hz selectable
Under frequency & Exc. max protection
Soft start voltage ramping
Normal rapid response time (Option)
Applicable for PMG or A.R.E.P or Auxiliary Winding
Apply with KUTAI EPMG-1270 / EPMG-2470 to exceeds normal generator motor starting capabilities

Specifications

Specifications
Sensing Input (Average Reading)	Voltage 95 to 520 Vac 1 phase 2 wire (DIP Switch Settings) 110 Vac Adjustment Range 95 – 140 Vac 220 Vac Adjustment Range 170 – 260 Vac 380 Vac Adjustment Range 340 – 520 Vac Frequency 50/60 Hz (Jumper selected)
Power Input	Voltage 40 to 150 Vac 1 phase 2 wire Frequency 40 to 500 Hz
Auxiliary Input	Voltage 40 to 150 Vac 1 phase 2 wire Frequency 40 to 500 Hz
External Volts Adjustment	Max. +/-10% @ 1KΩ 1 watt potentiometer
Quadrature Droop Input	Sensitivity +/- 7%@ PF +/- 0.7 (STAT. Adjustable)
Build Up Voltage	5 Vac 25Hz residual volts at power input terminal
Excitation Output	Continuous 110 Vdc 7A @ power input 120 Vac Max. 160 Vdc 10A for 10 Sec. Resistance Min. 15Ω, Max. 100Ω @120V Fuse Spec. Slow blow 5 x 20mm 10A
Voltage Regulation	Less than +/- 0.5% (with 4% engine governing)
Soft Start Ramp Time	3 seconds +/- 10%
Typical System Response	0.3 to 1 second @ +/-20% voltage vibration
Static Power Dissipation	Max. 4 watts
Under Frequency Protection	50 Hz system knee point at 45Hz 60 Hz system knee point at 55Hz
Over Excitation Current limitation	3.5A to 10A (EXC.MAX. Adjustable)
Voltage Thermal Drift	Less than 3% from -40 to +70 °C