• Stamford_AVR_AS440
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Technical specification 
SENSING INPUT 
 Voltage Jumper selectable  
  100-130 Vac 1 phase or 
  190-264 Vac 1 phase 
 Frequency 50-60 Hz nominal 
POWER INPUT 
  Voltage 100-264 V ac 1 phase  
 Frequency 50-60 Hz nominal 
OUTPUT 
 Voltage 82 V d.c. @ 200 V a.c.  
 Current continuous 4A (see note 1). 
  transient 7.5A for 10 secs. 
 Resistance    15 ohms min 
  (10 ohms min when input 
  volts is less than 175 ac) 
REGULATION 
  +/- 1.0% (see note 2) 
THERMAL DRIFT 
 0.03% per deg. C change in AVR ambient (see note 3) 
TYPICAL SYSTEM RESPONSE 
  AVR response  20 ms 
  Filed current to 90% 80 ms 
 Machine Volts to 97% 300 ms 
EXTERNAL VOLTAGE ADJUSTMENT 
  +/-10% with 1 k ohm 1 watt trimmer (see note 4) 
 Increasing resistance lowers voltage. 
UNDER FREQUENCY PROTECTION 
  Set point 94 -98% Hz (see note 5) 
UNIT POWER DISSIPATION 
  12 watts maximum 
BUILD UP VOLTAGE 
  4 Volts @ AVR terminals 
ANALOGUE INPUT 
  Maximum input  +/- 5 Vdc (see note 6) 
 Sensitivity 1V for 5% Generator Volts (adjustable) 
 Input resistance  1k ohm  
QUADRATURE DROOP INPUT 
 10 ohms burden 
 Max. sensitivity: 0.07 A for 5% droop 0PF 
 Max. input:  0.33 A 
OVER EXCITATION PROTECTION 
  Set point 65 V dc 
 Time delay 10-15 seconds (fixed) 
ENVIRONMENTAL 
  Vibration 20-100 Hz 50mm/sec 
  100Hz – 2kHz 3.3g 
 Operating temperature -40 to +70C (note 7) 
 Relative Humidity 0-70C 95% (note 8) 
 Storage temperature -55 to +80C