Newage Stamford SX460

SX460 is a half-wave phase-controlled thyristor type\r\nAutomatic Voltage Regulator (AVR) and forms part of the\r\nexcitation system for a brush-less generator.', 'SX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator.

In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.

Please read the specification sheet for further details

INPUT Voltage Jumper selectable
  95-132V ac or
  190-264V ac
  Frequency 50-60 Hz nominal
  Phase 1
   
OUTPUT Voltage max 90V dc at 207V ac input
  Current continuous 4 A dc
  Intermittent 6 A for 10 secs
  Resistance 15 ohms minimum
   
REGULATION +/- 1.5% (see note 1)
   
THERMAL DRIFT 0.05% per deg. C change in AVR ambient (note 2)
   
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 3)
   
UNDER FREQUENCY PROTECTION Set point 95% Hz (see note 4)
  Slope 170% down to 30 Hz
   
UNIT POWER DISSIPATION 10 watts maximum
   
BUILD UP VOLTAGE 4 Volts @ AVR terminals
   
ENVIRONMENTAL Vibration 20-100 Hz 50mm/sec
  100Hz – 2kHz 3.3g
  Operating temperature -40 to +70°C
  Relative Humidity 0-70°C 95% (see note 5)
  Storage temperature -55 to +80°C
   
NOTES 1. With 4% engine governing
  2. After 10 minutes.
  3. Applies to Mod status F onwards. Generator de-rate may
  apply. Check with factory.
  4. Factory set, semi-sealed, jumper selectable
  5. Non condensing.
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