Product Details

stamford as440 AVR control governor:

Product Description

AS440 is a half wave phase controlled thyristor type AVR and forms part of the excitation system for a brush-less generator. The design employs Surface Mount Technology (SMT) for high integration of features in a small footprint AVR.

Sensing Input	Voltage	Jumper selectable 100-130 Vac 1 phase 190-264 Vac 1 phase
Sensing Input	Frequency	50-60 Hz nominal
Power input	Voltage	100-264 V ac 1 phase
Power input	Frequency	50-60 Hz nominal
Output	Voltage	82 V d.c. @ 200 V a.c.
	Current	Continuous 4A transient 7.5A for 10 secs
	Resistance	15 ohms min (10 ohms min when input Volts is less than 175 ac)
Regulation	± 1.0%
Thermal drift	0.03% per deg. C change in AVR ambient
Typical system response	AVR response	20 ms
	Filed current to 90%	80 ms
	Machine Volts to 97%	300 ms
External voltage adjustment	±-10% with 1kohm 1 watt trimmer Increasing resistance lowers voltage.
Uuder frequency protection	Set point	94 -98% Hz
Unitpower dissipation	12 watts maximum
Build up voltage	4 Volts @ AVR terminals
Analogue voltage	Maximum input	±5 Vdc
	Sensitivity	1V for 5% Generator Volts (adjustable)
	Input resistance	1k ohm
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	65 V dc
Over excitation protection	Time delay	10-15 seconds (fixed)
Environmental	Vibration	20-100 Hz
		100Hz – 2kHz
50mm/sec	Operating temperature	40degree under zero to 70 degree
3.3g	Relative humidity 0-70℃	95%
	Storage temperature	Storage temperature -55 to +80C