Automatic Voltage Regulator (AVR)

Generator Automatic Voltage Control Board AVR SX440 for Brushless Alternator

Generator Automatic Voltage Control Board AVR SX440 for Brushless Alternator

Model Number: SX440
Application: Stamford AVR Replacement
Warranty: 1 year
In stock: yes
Product description: Generator AVR SX440 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 generato
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Generator Automatic Voltage Control Board AVR SX440 for Brushless Alternator

Description:

Generator AVR SX440 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

The Propose employs surface mount technology (SMT) for high integration of features in a minute footprint AVR. 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%

*Stability adjustment

*Under frequency roll off adjustment

*Trim adjustment

*Optimum response selection

*Droop adjustment

Technical Data

Input	Voltage	190-264V ac
	Frequency	50-60 Hz nominal
	Phase	1
	Wire	2
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		0.04% 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
Under frequency protection	Slope	170% down to 30 Hz
Unit power dissipation		12 watts maximum
Build up voltage		4 Volts @ AVR terminals
Analogue Input	Maximum input	±5V dc
	Sensitivity	1v for 5%
	Input resistance	1k ohm
Quadrature Droop Input		10 ohms burden
		Max. sensitivity: 0.07 A for 5% droop 0PF
		Max. input: 0.33A
Environmental	Vibration	20-100 Hz,50mm/se
	Vibration	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