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SX440 automatic voltage regulator (AVR)
TECHNICAL SPECIFICATION
INPUT：
Voltage 170-250 V ac max
Frequency 50-60 Hz nominal
Phase 1
Wire 2
OUTPUT：
Voltage max 90 V dc at 207 V ac input
Current Continuous 4 A dc
Transient 6 A for 10 seconds
Field Resistance 15 Ω minimum
REGULATION (See Note 1) +/- 1%
THERMAL DRIFT
(after 10 min)
1% for 40°C change in AVR ambient
TYPICAL SYSTEM RESPONSE：
Field current to 90% 80ms
Machine Volts to 97% 300ms
EXTERNAL VOLTAGE ADJUSTMENT (see note 2)
+/- 8% with 1 K Ω trimmer
UNDER FREQUENCY PROTECTION
Set Point (See Note 3) 95% Hz
Slope 170% down to 30 Hz
UNIT POWER DISSIPATION
12 watts maximum
BUILD UP VOLTAGE
3.5 Vac @ AVR terminals
ACCESSORY INPUT
+/- 1V = +/- 13% change in output volts
QUADRATURE DROOP SENSITIVITY
Maximum sensitivity (10 Ω Burden)
0.07A for 5% droop @ 0p.f.
ENVIRONMENTAL
Vibration 20-100 Hz 50mm/sec
100 Hz-2 kHz 3.3g
Relative Humidity 0-60°C 95%
Operating Temperature -40°C to + 70°C
Storage Temperature -55°C + 80°C
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