AS480 Generator Voltage Regulator AVR Used For Stamford Generator

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Automatic Voltage Regulator AS480 AVR For Stamford
Input	Voltage	100-264 V ac
	Frequency	50-60 Hz nominal
	Phase	1
Output	Voltage	82 V d. c. @ 200 Va. c power input.
	Voltage	45 V d. c. @ 110 Va. c power input.
	Current	continuous 5A dc (see NOTE 1).
	Current	transient 7.5A for 10 secs.
	Resistance	15 ohms minimum
Regulation		+/- 1.0% (see note 2)
Thermal Drift		0.03% per deg. C change in AVR ambient (note 3)
Typical system response	AVR response	20ms
	Filed current to 90%	80 ms
	Machine Volts to 97%	300ms
External voltage adjustment		+/-10% with 1 k ohm 1 watt trimmer (see note 4)
		Increasing resistance lower voltage.
		Fixed 15 Ohm resistor enables 110 V sensing.
Under frequency protection	Set point	94-98% Hz (see note 5)
Unit power dissipation		12 watts maximum
Build up voltage		4 Volts @ AVR terminals
Quadrature Droop Input		10 Ohms burden
		Max. sensitivity: 0.07 A for 5% droop 0PF
		Max. Input: 0.33 A
Over Excitation Protection	Set point	67 V dc +/-3% (fixed)
Over Excitation Protection	Time delay	10-15 seconds (fixed)
Environmental	Vibration	20-100 Hz; 50mm/se
	Vibration	100Hz – 2kHz; 3.3g
	Operating temperature	-40 to +70°C
	Relative Humidity 0-70°C	95% (see note 6)
	Storage temperature	-55 to +80°C