Newage Stamford SX460

Newage Stamford SX460
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.
Specification sheet Download
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