Diesel Generator AVR Sx460 Sx440 Stamford AVR Spare Part Automatic Voltage Regulator

• Conditions of Use: Land Use
• Usage: Emergency Crew, Standby Unit, Common Units
• Output Type: DC
• Cooling Method: Air Cooled
• Installation Method: Fixed
• Generator Type: Diesel Generator
• Model NO.: SX460 SX440
• Color: Black
• Transport Package: Carton
• Specification: 175*150*65mm
• Origin: China
• HS Code: 8503009090

Product Description

Product Features    

1.Introduction:

SX460 is a half-wave phase- controlled thyristor type Automatic Voltage Regulator and forms 

part of the excitation system for a brushless generator. In addition to regulating the generator 

voltage, the AVR circuitry includes under speed and sensing loss protection to ensure safe, 

reliable control of the generator. Positive voltage build up from residual levels is ensured by 

the use of proficient semiconductors inthe power circuitry of the AVR. 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 +/- 1.5% 

Stability adjustment

Under frequency roll off adjustment 

 

2.Technical data:

Parameter sheet of Standford AVR SX460
Input	Voltage	Jumper selectable 95-132V ac or 190-264V ac
	Frequency	50-60 Hz nominal
	Phase	1
Output	Voltage	max 90V dc at 207V ac input
	Current	continuous 4A dc, intermittent 6A for 10 secs
	Resistance	15 ohms minimum
Regulation	+/- 1.0%
Thermal Drift	0.05% per deg. C change in AVR ambient
Typical system response	AVR response	20ms
	Filed current to 90%	80 ms
	Machine Volts to 97%	300ms
External voltage adjustment	+/-10% with 1 k ohm 1 watt trimmer
Under frequency protection	Set point	95% Hz
	Slope	170% down to 30 Hz
Unit power dissipation	12 watts maximum		10 watts maximum
Build up voltage	4 Volts @ AVR terminals
Environmental	Vibration	20-100 Hz,50mm/se
		100Hz - 2kHz, 3.3g
	Operating temperature	-40 to +70 Deg. C
	Relative Humidity 0-70 Deg. C	95%
	Storage temperature	-55 to +80 Deg. C

3. Pictures