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EA448B

 

NOTICE 

 

1. 

 

AVR  could  be  installed  in  any  suitable 

locations  of  the  generator  sets,  the 
appearance  and  fixing  holes  are  as  (Figure 
1) 
 

2.    To  ensure  safety  and  avoid  the  permanent 

damage  to  the  AVR  caused  by  the  high 
pressure, make sure remove the connection 
wiring 

on 

the 

AVR 

before 

using 

megohmmeter and the voltage meter. 

 
3.    Make sure tie up the connection wiring of the 

AVR  when  installing  in  a  high-vibration 
environment.  The  cooling  fin  could  release 
the  high  temperature  under  the  normal 
operation, please do not touch. 

 

SECTION 1: SPECIFICATION 

Sensing Input    (E1

E2) Average Reading 

Voltage Regulation 

    Voltage 

95 

 520 Vac 1 phase 2 wire 

Less than +/- 0.5% ( with 4% engine governing ) 

DIP Switch Settings 

 

  Adjustment   

95 

 140 Vac @ 110 Vac 

Typical System Response 

   

170 

 260 Vac @ 220 Vac 

0.3 

 1 seconds @ +/- 20% Voltage Vibration 

   

340 

 520 Vac @ 380 Vac 

 

  Frequency 

50/60 Hz Jumper selected 

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 phase Continuous 110 Vdc 7A 

    Less than 3% from -40 to +70 °C 

                              Max. 160 Vdc 10A 10Sec 

 

  Resistance 

Min. 15

Ω, Max. 100Ω @120V 

Environment 

  Fuse Spec.      Slow blow 5 x 20mm 10A 

Operation Temperature 

-40 to +7

0 ˚C 

 

Storage Temperature 

-40 to 

+85 ˚C 

External Voltage Adjustment 

(1KΩ)

 

Relative Humidity 

Max. 95% 

  Max. +/- 10% @ 1 

KΩ 1 watt potentiometer 

Vibration 

5.5 Gs @ 60 Hz

 

 

 

 

 

Quadrature Droop Input (S1

S2) 

Dimensions 

   

CT N:1A

 

   

203.0 (L) x 153.0 (W) x 60.5 (H) mm 

   

Sensitivity

       

+/- 7%@ PF +/- 0.7 (STAT. Adjustable)

 

    7.99 (L) x 6.03 (W) x 2.38 (H) inch 

 

 

Build Up Voltage 

 Weight 

    5 Vac 25Hz residual volts at power input terminal 

  850 g +/- 2% 

 

  1.874 lb +/- 2% 

Soft Start Ramp Time 

 

  3 s/- 10% 

 

 

SECTION 2: DEMISION 

[5.51"]

140.0

[2.95"]

75.0

115.0

[4.53"]

100.0

[3.94"]

[7.87"]

200.0

[2.36"]

60.0

Unit : mm

[0.71"]

18.0

[inch]

M5 L30

 

Figure 1. Outline Drawing 

Содержание EA448B

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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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