Note: If the contents mentioned other manufacturers's names and models, the narrative only for informational purposes, this product is not original, but it can compatible with them
AS480 avr for 75 kva generator servo motor avr
TheAS480 is a half-wave phase-controlled AVR which forms part of the excitation structure of the brushless generator. Which also incorporates
an interface to the optional excitation boost system(EBS) for the use where short-circuit current safeguarding is required.
Positive voltage build up from residual levels is ensured by the use of proficient semiconductors in the power circuitry of the AVR. The control and voltage sensing circuits have separate terminals,
allowing the excitation power to be resulting directly from the stator winding for necessary applications or from an auxiliary winding if sustained short circuit performance is essential. Which is linked with the main stator windings and the exciter field
windings to offer closed loop control of the output voltage with load regulations of +/- 1.0%, In response to his sample voltage, the AVR controls the power fed to the exciter field, and hence the main
field, to sustain the machine output voltage within the specified limits, compensating for load, speed, temperature
and power factor of the generator.
100-264 V ac 1 phase
50-60 Hz nominal
82 V d.c. @ 200 Va.c power input; 45 V d.c. @ 110 Va.c power input.
Continuous 5A , transient 7.5A for 10 secs.
15 ohms minimum
0.03% per Deg. C change in AVR ambient
Typical system Response
Filed current to 90%
Machine Volts to 97%
External voltage adjustment
+/-10% with 1 k ohm 1 watt trimmer; Increasing resistance lowers voltage; Fixed 15kOhm resistor enables 110V sensing
Under frequency protection
Set point: 94 -98% Hz
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
67 Vdc +/-3% (fixed
10-15 seconds (fixed)
100Hz – 2kHz, 3.3g
-40 to +70 Deg. C
Relative Humidity 0-70 Deg. C
-55 to +80 Deg. C
the fastest transit time
a lauge number of stocks
easy for operation
answer all of your questions within 1day
Packaging & Shipping
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1. We Ship to Worldwide, except APO/FPO
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4.Items are shipped from China by Airmail, reach most of the countries within 4 to 20 business days.
5.Delivery time depends on destination and other factors, it may takes up to 20 business days.
6. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.
7. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
1. Guarantee:365 days 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.
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