AVR SX460 For Stamford Alternators

SX460 Automatic Voltage Regulator
SX460 AVR is a half -wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator.In addition to regulating the generator voltage,the AVR circuitry includes under-speed and sensing loss protection features.Excitation power is derived directtly from the generator terminals.Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.,The AVR is linked with th main stator windings and the exciter field windings to provide closed loop control of the output voltage with load regulation of +/-1.0%.In addition to being powered from the main stator,the AVR also derives a sample voltage from the output windings for voltage,the AVR control the power fed to the exciter field,and hence the main field , to maintaion the machine output voltage within the specified limits,compensating for load,speed temperature and power factor of the generator.
A frequency measuring circuit continually monitors the generator output and provides output under-speed protection of the excitation system ,by reducing the outputvoltage proportionally with speed below a pre-settable threshold.A manual adjustment is provided for factory setting of the under frequency roll off point.(UFRO).This can easily be changed to 50 or 60Hz in the field by push on link selection.Porvision is made for the connection of a remote voltage trimmer ,allowing the user fine control of the generator’s output.
SX460 AVR Product Detail:

Place Of Origin Taizhou,China
Brand Name YAMADA
Brand Stamford
Model Number SX460
Type Brushless
Phase 1
Self excited Yes
Alternator Power <150KW
AVR Can Material PP,ABS,ROHS
Package 50pcs per carton
Individual box Packing Yes, We could print customer’s logo
Produce Ability 3000pieces per day
Certification CE,ROHS
Minimum Order Quantity 2PCS
Delivery Time 5-25days
Payment Term Wire Transfer(TT),Western Union, Paypal, LC at sight
Samples Charge
Samples Ship Cost Customer pay, If you have courier No.(UPS,DHL,TNT),Please send it to us.
Loading Port Ningbo ,Shanghai, Guangzhou
Harmonized System Code(HS) 8503009090
OEM Manufacture Service Yes

 SX460 AVR Technical specification:

Jumper selectable

95-132V ac or 190-264V ac
Frequency:50-60Hz nominal
Phase: 1
Voltage:max 90V dc at 207V ac input
Current :Continuous 4A dc
Intermittent 6A for 10 secs
Resistance:15 ohms minimum
REGULATION:+/-1.0%(see not 1)
THERMAL DRIFT:0.05% per deg.C change in AVR ambient(see note 2)
AVR response:20ms
Filed current to 90% 80ms
Machine Volts to 90% 300ms
+/-10% WITH 1k ohm 1 watt trimmer(see note 3)UNDER FREQUENCY PROTECTION:
Set point  95% Hz (see note 4)
Slope      170% down to 30 HZ
BUILD UP VOLTAGE:4 Volts  @AVR terminals
Vibration: 20-100Hz   50mm/sec
100Hz  2kHz   3.3g
Operating temperature :-40 to +70C
Relative Humidity: 0-70C: 95%(see note 5)
Storage Temperature:-55 to+80C
1.With 4% engine governing
2.After 10 minutes.
3.Applies to Mod status F onwards. Generator de-rate ma apply. Check with factory
4.Factory set,semi-sealed,jumper selectable
5.Non condensing

 We also provide  design service for customers’ demands.