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Contact Person : Kris
Phone Number : 0086-0769-85914911
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AVR AS440 Automatic Voltage Regulators , Generator Automatic Voltage Regulator AVR

Place of Origin USA
Brand Name GSKA
Model Number AVR AS440
Minimum Order Quantity 5
Price Negotiable
Packaging Details Standard Export packing
Delivery Time Ex-stock
Payment Terms T/T,Western Union,Cash or L/C
Supply Ability 500 pieces per Month

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Product Details
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avr automatic voltage regulators


automatic voltage regulator circuit

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Product Description


AVR AS440 Automatic Voltage Regulators , 1 Phase Brushless Generator Parts





Comptible brushless generator parts- Stamford AVR AS440( OEM part and Genuine part)


Pictures show as below


AVR AS440 Automatic Voltage Regulators , Generator Automatic Voltage Regulator AVR 0


Stamford AVR 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 specifiCAT-parts-partsion
Sening input

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
Voltage 82V dc @200V ac

continuous 4A

transient 7.5A for 10 secs


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)


20-100Hz 50mm/sec

100Hz-2kHz 3.3g

Operating temperature -40 to +70C
Relative Humidity 0-70C 95%
Storage temperature -55 to +80C
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



Apply In--
*Biogas Power Generation
*Natural Gas Power
*Field Engineering
*Electric Power


Payment Term

1.We accept West Union, TT. Cash.and L/C

2.All major Credit cards are accepted through secure payment processor ESCROW.


Shipment Term







1. Guarantee:1 year after selled.

2. During guarantee,the items share free repairs or replacement.

3. Customer is responsible for the freight come-and-go,and the custom tax.

4. You may consider to send the defective item with a economical way,and we send      back the repaired items with your new order together.

5. To save the cost,pls send the item back without packing.

6. Pls provide the defective appearance and related invoice number.

7. We do not repair or replace item with an expired warranty.

8. All emails will be answered within 1 business day. If you do not receive our  reply, please kindly re-sent your email or give us a call any time.