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ADVR-250

 

Figure 1

 

Outline Drawing 

SECTION 1 : SPECIFICATION 

Sensing Input ( 0V, 110V ) Average Reading 

Under Frequency Protection (Factory Presets) 

  Voltage 

85 

 140 Vac, 1 phase 2 wire 

  50 Hz system    knee point at 48 Hz 

  Frequency 

50/60 Hz, Potentiometer setting 

  60 Hz system    knee point at 58 Hz 

 

 

Excitation Output ( E+, E- ) 

Over Excitation Current Limiting 

  120V 1 phase Continuous 

63 Vdc 

3.5A 

  Excitation Current 5 A +/- 10 % 

   

Max. 110 Vdc 5A for 10 secs. 

 

  Resistance 

Min. 18 ohms,    Max.100 ohms 

Voltage Thermal Drift 

  Fuse Spec. 

Slow blow 5 x 20mm 8A 

  Less than 3% at temperature range -40 to +70 

˚C 

 

 

External Voltage Adjustment (1K ohm )

 

Under Frequency Knee Point Thermal Drift 

  Max.+/- 14%  @ 1 K ohm 1 watt potentiometer 

  Less than +/- 0.1 Hz at -40 to 

+70 ˚C 

 

 

Voltage Regulation 

Environment 

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

  Operating Temperature  -40 to 

+70 ˚C 

 

  Storage Temperature 

-40 to 

+85 ˚C 

Build Up Voltage 

  Relative Humidity 

Max. 95% 

  5 Vac 25 Hz residual volts at power input terminal 

  Vibration 

5.5 Gs @ 60 Hz 

 

 

Soft start ramp time 

Dimensions 

  3 s/- 10% 

  140.0 (L) x 81.0 (W) x 46.0 (H) mm 

 

  5.51 (L) x 3.19 (W) x 1.81 (H) inch 

Typical System Response 

 

  Less than 20 milliseconds 

Weight

 

 

  300 g +/- 2% 

EMI Suppression 

  0.66 lb +/- 2% 

  Internal electromagnetic interference filtering 

 

 

 

Static Power Dissipation 

 

  Max. 4 watts 

 

 

SECTION 2 : APPEARANCE / DIMENSIONS / INSTALLATION DRAWING 

Unit : mm

[inch]

[3.19"]

81.0

[5.51"]

140.0

[4.53"]

115.0

[1.06"]

27.0

[1.96"]

50.0

[1.81"]

46.0

M4 L25

8.5

[0.33"]

 

Connection Terminals

6.35 mm (1/4 inch) 

Flag Terminals 

( “Fast-On” terminals ). 

Summary of Contents for ADVR-250

Page 1: ...aiwan ADVR 250 Generator Automatic Voltage Regulator Operation Manual Analog Digital Single phase detection Excitation Current 3 5 Amps For use in brushless self excited shunt generators Compatible with Leroy Somer R250 R230 AVR All manufacturer names and numbers are used for reference purpose only and do not imply that any part is the product of these manufacturer ...

Page 2: ... Adjustment 1K ohm Under Frequency Knee Point Thermal Drift Max 14 1 K ohm 1 watt potentiometer Less than 0 1 Hz at 40 to 70 C Voltage Regulation Environment Less than 0 5 with 4 engine governing Operating Temperature 40 to 70 C Storage Temperature 40 to 85 C Build Up Voltage Relative Humidity Max 95 5 Vac 25 Hz residual volts at power input terminal Vibration 5 5 Gs 60 Hz Soft start ramp time Dim...

Page 3: ...e and engine speed fluctuates In order to reduce the level of volatility after a load is added the engine speed will slow lowering the total power output of the generator and delaying recovery The low frequency knee point setting should be below a nominal setting for 2 Hz to cause the output voltage and engine speed to have a smooth recovery The LAM function allows choice of reduction settings of ...

Page 4: ... function set to 25 Use when transient loads are greater than 70 of rated generator capacity 60 Hz Systems 3 Under Frequency knee point 58 Hz LAM function OFF Use when transient loads are below 40 of rated generator capacity 4 Under Frequency knee point 58 Hz LAM function set to 13 Use when transient loads are between 40 70 of rated generator capacity 5 Under Frequency knee point 58 Hz LAM functio...

Page 5: ...e 5 ATTENTION 1 Before using a Megger or a Withstand Voltage Tester removes the wires connecting to the AVR to prevent high voltage damage to the regulator 2 Improper setting of under frequency protection could cause the output voltage of the unit to drop or become unstable under with changes in load Avoid making any changes to the U F setting unless necessary Use only replacement fuses specified ...

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