SX460 is a half-wave phase- controlled thyristor type
Automatic Voltage Regulator and forms part of the excitation system
for a brushless generator. In addition to regulating the
generator voltage, the AVR circuitry includes under speed and
sensing loss protection to ensure safe, reliable control of the
generator. Positive voltage build up from residual levels is
ensured by the use of proficient semiconductors in the power
circuitry of the AVR. Which is linked with the main stator windings
and the exciter field windings to offer closed loop control of the
output voltage with load regulations of +/- 1.5%Stability
adjustmentUnder frequency roll off
adjustment SX460InputVoltageJumper selectable 95-132V AC
or 190-264V ACFrequency50-60 Hz nominalPhase1OutputVoltageMax 90V
DC at 207V AC inputCurrentContinuous 4A DC, intermittent 6A for 10
secsResistance15 ohms minimumRegulation+/- 1.0%Thermal Drift0.05%
per deg. C change in AVR ambientTypical system responseAVR
response20msFiled current to 90%80 msMachine Volts to
97%300msExternal voltage adjustment+/-10% with 1 K ohm
1 watt trimmerUnder frequency protectionSet point95%
HzSlope170% down to 30 HzUnit power dissipation12 watts maximum10
watts maximumBuild up voltage4 Volts @ AVR
terminalsEnvironmentalVibration20-100 Hz, 50mm/se100Hz - 2kHz,
3.3GOperating temperature-40 to +70 Deg. CRelative Humidity 0-70
Deg. C95%Storage temperature-55 to +80 Deg. CContact us
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