SX440
1)SX440 is a half wave phase-controlled thyristor type Automatic Voltage Regulator (AVR)
2)
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Technical specification
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input
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voltage
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190-264V ac
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frequency
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50-60 Hz nominal
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phase
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1
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wire
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2
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output
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voltage
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Max 90V dc at 207V ac input
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Current
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Continuous 4 A dc
Intermittent 6A for 10 secs
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resistance
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15 ohms minimum
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regulation
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+/- 1.0% (see note 1)
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Thermal drift
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0.04% per deg. C change in AVR ambient (note 2)
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Typical system response
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AVR response
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20 ms
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Filed current to 90%
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80 ms
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Machine volts to 97%
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300ms
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External voltage adjustment
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+/- 10% with 1 k ohm 1 watt trimmer(see note 3)
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Under frequency protection
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Set point
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95% Hz(see note 4)
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slope
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170% down to 30 Hz
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Unit power dissipation
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12 watts maximum
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Build up voltage
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4 volts @ AVR terminals
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