EPMG-1270 and 24V EPMG-2470

Excitation Boost System

EPMG® converts DC battery power into a separate excitation source to provide “boost” for self-excited (shunt) generators during heavy transient loads – providing PMG performance for much less cost. Available in 12V (EPMG-1270) and 24V (EPMG-2470).
  • EPMG® installs quickly and easily in series with any AVR (excitation current below 8A) in a self-excited generator
  • EPMG® converts genset battery and/or other battery power into a separate excitation power source for dynamic response for heavy load used such as motor starting and short circuit situations – operating only when required
  • Upgrades self-excited generators to PMG type performance
  • Battery voltage abnormal / reverse polarity / current limiting protections
  • Power output self-test
  • Built-in DC fuse protection
  • Low power consumption when not in use (hibernate mode)

Specifications
Sensing Input
  • Voltage 80 to 600 Vac 1 phase
  • Frequency 50/60 Hz
Power Input
  • EPMG-1270 : 8 to 18 Vdc / 50A Battery
  • EPMG-2470 : 16 to 36 Vdc / 25A Battery
Output
  • Max. Voltage 90 Vac
  • Max. Output 400 VA
Response Time
  • 10 ms
Efficiency
  • More than 85% @ Full load
Applicable AVR
  • Max. Excitation Current 8A
Input Current Limited
  • EPMG-1270 @ 50A
  • EPMG-2470 @ 25A
Battery Voltage Range
  • EPMG-1270 @ 8 to 18 Vdc
  • EPMG-2470 @ 16 to 36 Vdc
Static Power Consumption
  • Less than 0.5 watts

LED Indicators
Output
  • Boost Power ON
Ready
  • Ready for output
Test
  • Self-Test in progress
Batt-Volt
  • Battery Voltage abnormal
OVLD
  • Overload

Adjustment
Trigger Setting
  • Voltage drop 3% to 16.5% (adjustable)
Gain
  • Output Gain (40 to 400)
  • Output (V) = Gain x (Droop voltage / Rated voltage)

Accessories
Connection wire
  • White x 2
  • Brown x 2
Screw bolt M6L20
  • x 4

Environment
Operating Temperature
  • -40 to +60 °C
Storage Temperature
  • -40 to +85 °C
Relative Humidity
  • Max. 95%
Vibration
  • 5.5 Gs @ 60 Hz

Physical Specifications
Dimensions
  • 175.0 (L) x 115.0 (W) x 104.0 (H) mm
  • 6.89 (L) x 4.53 (W) x 4.09 (H) inch
Weight
  • 2.9 Kg +/-2%
  • 6.39 lb +/-2%
Weight 2.9 kg
Dimensions 17.5 × 11.5 × 10.4 cm

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