Product description: SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator.
Technical parameters
INPUT Voltage 190-264Vac Frequency 50-60Hznominal Phase 1 Wire 2 OUTPUT Voltage max 90Vdc at 207Vac input Current continuous 4Adc Intermittent 6A for 10secs Resistance 15ohmsminimum REGULATION +/-1%(seenote1) THERMALDRIFT 0.04%perdeg.CchangeinAVRambient(note2) TYPICAL SYSTEM RESPONSE AVR response 20ms Filed current to 90% 80ms Machine Volts to 97% 300ms EXTERNALVOLTAGEADJUSTMENT +/-10% with 1 kohm 1 watt trimmer(seenote3) UNDER FREQUENCY PROTECTION Set point 95%Hz(seenote4) Slope 170% down to 30Hz UNIT POWER DISSIPATION 12 watts maximum BUILD UP VOLTAGE 4Volts@AVR terminals ANALOGUE INPUT Maximum input +/-5Vdc(seenote5) Sensitivity 1v for 5% Generator Volts(adjustable) Input resistance 1kohm QUADRATURE DROOP INPUT 10ohms burden Max.sensitivity: 0.07Afor5%droop0PF Max.input: 0.33A ENVIRONMENTAL Vibration 20-100Hz 50mm/sec 100Hz 2kHz 3.3g Operating temperature -40to+70C Relative Humidity 0-70C 95%(seenote6) Storage temperature -55 to +80C