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KUTAI ELECTRONICS INDUSTRY CO., LTD. 

TEL : +886-7-8121771          FAX : +886-7-8121775          Website : www.kutai.com.tw 
Headquarters : No.3, Ln. 201, Qianfu St., Qianzhen Dist., Kaohsiung City 806037, Taiwan

 

 

 

 
 
 
 
 
 
 
 

EA448B 

 

 

Generator Automatic Voltage Regulator 

Operation Manual 

 
 
 
 

 

 

 
 

 

Permanent Magnet Generator or A.R.E.P or Auxiliary Winding Type 

Compatible with Leroy Somer R448* 

 

Use with KUTAI EPMG-1270 / EPMG-2470 add-on module can boost 

generator motor starting capacity 

 

*  Use for reference purpose only and not a genuine Leroy Somer product.

 

Summary of Contents for EA448B

Page 1: ...ohsiung City 806037 Taiwan EA448B Generator Automatic Voltage Regulator Operation Manual Permanent Magnet Generator or A R E P or Auxiliary Winding Type Compatible with Leroy Somer R448 Use with KUTAI EPMG 1270 EPMG 2470 add on module can boost generator motor starting capacity Use for reference purpose only and not a genuine Leroy Somer product ...

Page 2: ...lected Static Power Dissipation Max 4 watts Power Input X1 X2 Voltage 40 150 Vac 1 phase 2 wire Under Frequency Protection Frequency 40 500 Hz 50 Hz system knee point at 45Hz 60 Hz systems knee point at 55Hz Auxiliary Input Z1 Z2 Voltage 40 150 Vac 1 phase 2 wire Over Excitation Current limitation Frequency 40 500 Hz 3 5A to 10A EXC MAX Adjustable Excitation Output E E Voltage Thermal Drift 120V 1...

Page 3: ...e and then adjust it clockwise for about 1 5 circle VOLT Voltage Adjustment Adjust Generator output voltage Adjustment range can be set by DIP SW STAT Quadrature Droop Adjustment Adjust the ratio of the idle power to the voltage drop when used in parallel Adjustment range is 0 to 7 J1 Connected With LAM protection LAM When Generator is loading the Engine speed will be reduced When engine speed is ...

Page 4: ...Excited SHUNT Figure 3 Auxiliary and Harmonic Power Winding T1 T7 T2 T8 T3 T9 T4 T10 T5 T11 T6 T12 FIELD STATOR 12 wires marked T1 to T12 PMG X2 Z1 X1 Z2 E E E1 E2 60Hz 50Hz S2 S1 3Ph potentiometer 1k 1W External T1 1K EA448B Figure 4 PMG Winding ATTENTION 1 Improper setting of under frequency protection could cause the output voltage of the unit to drop or become unstable under with changes in lo...

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