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Original AS440 AVR For stamford alternator

  • Original AS440 AVR For stamford alternator
  • Original AS440 AVR For stamford alternator
Model No.︰AS440
Brand Name︰STAMFORD
Country of Origin︰United Kingdom
Unit Price︰US $ 300 / pc
Minimum Order︰1 pc
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Product Description

Original AS440 AVR For stamford alternator
 
Specifications:

 
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
Payment Terms︰TT
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