Automatic Voltage Regulator(AVR) STAMFORD MX341

Specifications :

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. 
  

Technical specification
Sensing input
Voltage	Jumper selectable 100-130V ac 1 phase or 190-264V ac 1 phase
Frenquency	50-60Hz nominal
Power input
Voltage	100-264V ac 1 phase
Frequency	50-60Hz nominal
Output
Voltage	82V dc @200V ac
Current	continuous 4A
	transient 7.5A for 10 secs
Resistance	15 ohms min (10 ohms min when input volts i s less than 175ac)
Regulation	+/-1.0%
Thermal Drift	0.03% per deg. C change in AVR ambient
Typical System Response	AVR response  20ms
	Field current to 90%  80ms
	Machine Volts to 97% 300ms
External Voltage Adjustment	+/-10% with 1 k ohm 1 watt trimmer
	Increasing resistance lowers voltage
Under frequency Protection	Set point  94-98% Hz
Unit power Dissipation	12 watts maximum
Build Up Voltage	4 Volts @ AVR terminals
Analogue input	Maximum input +/-5V dc
	Sensitivity 1V for 5% Generator Volts(adjustable)
	input resistance 1k ohm
Quadrature Droop input	10 ohms burden
	Max. sensitivity: 0.07A for 5% droop 0 PF
	Max. input: 0.33A
Over Excitation protection	Set point 75V dc
	Time delay 10-15 seconds(fixed)
Environmental
Vibration	20-100Hz  50mm/sec
	100Hz-2kHz 3.3g
Operating temperature	-40 to +70C
Relative Humidity 0-70C	95%
Storage temperature	-55 to +80C
Notes
1. De-rate by 12% if mounted in portrait orientation.
2. With 4% engine governing.
3. After 2 minutes.
4. Generator de-rate may apply. Check with factory.
5. Factory set, semi-sealed, jumper selectable.
6. Any device connected to the analogue input must be fully floating(galvanically isolated form ground), with an insulation strength of 500V ac
7. De-rate output current by 5% per degree C above 60C.
8. Non condensing