Product Attribute:
Brand:Stamford
Model:AS480
Usage:Regulating voltage for generator
N.W:0.5kg
Packing size:160*110*60mm
Current type:A.C
Phase:three
Applicationt:
regulating voltage for stamford alternator
Production Description:
1.Application:
AS480 is a half wave phase controlled AVR which forms part of the excitation structure of the brushless generator. It is applicable to brushless generator of bellow 75kw.
Technical data:
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Sensing and power input
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voltage
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100-264 Vac 1 phase
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frequency
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50-60 Hz nominal
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output
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voltage
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82 V d.c. @ 200 V a.c.
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45 V d.c. @ 110 V a.c.
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Current
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Continuous 5 A dc. transient 7.5A for 10 secs.
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resistance
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15 ohms min
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regulation
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+/- 1.0%
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Thermal drift
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0.03% per deg. C change in AVR ambient
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Typical system response
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AVR response
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20 ms
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Filed current to 90%
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80 ms
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Machine volts to 97%
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300ms
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External voltage adjustment
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+/- 10% with 1 k ohm 1 watt trimmer
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Under frequency protection
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Set point
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95% Hz(see note 4)
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Unit power dissipation
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12 watts maximum
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QUADRATURE DROOP INPUT
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Max. sensitivity
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0.07 A for 5% droop 0PF
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Max. input
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0.33 A
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OVER EXCITATION PROTECTION
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Set point
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67 V dc +/-3%
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Time delay
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10-15 seconds (fixed)
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Build up voltage
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4 volts @ AVR terminals
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Ralated AVR SUPPLY:We also supply AVR as follows:
Stamford series: SX440,AS440,MX341,AS480
Leroy somer series: R230,R438,R448,R449,R250
Universal AVR:GAVR-8A,GAVR-12A,GAVR-15A
AVR for carbon brush type and compound excitation generator:YS-100,YS-110,YS-120,YS-130(B),YS-160,YS-170
YS-2KW,YS-3KW,YS-5KW,YS-7KW,YS-8KW,YS-10KW
AVR:ST,STC,KXT-2WC
Note: buyers are responsible for all additional customs fees, brokerage fees, duties,. These addition fees may be collected at time of delivery.We will not refund shipping charges for refused shipments.
Warranty and Returns:
Within one year,if any problem with the item,buyers can returns it to exchange another new one,buyers are responsible for the shipping fees and customs duty.
Any inquiry from you will be highly valued;it will be a great honor for me to supply help.