AVR SX440 Automatic Voltage Regulator for Stamford Diesel Generator

(1 customer review)

$72.00

Availability: 19 in stock

Original Option
**Genuine Alternative:** This AVR SX440 is a high-quality aftermarket replacement for the original Stamford voltage regulator.

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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%.

Details

InputVoltage190-264V ac
Frequency50-60 Hz nominal
Phase1
Wire2
OutputVoltagemax 90V dc at 207V ac input
Currentcontinuous 4A dc, intermittent 6A for 10 secs
Resistance15 ohms minimum
Regulation+/- 1.0%
Thermal Drift0.04% per deg. C change in AVR ambient
Typical system responseAVR response20ms
Filed current to 90%80 ms
Machine Volts to 97%300ms
External voltage adjustment+/-10% with 1 k ohm 1 watt trimmer
Under frequency protectionSet point95% Hz
Slope170% down to 30 Hz
Unit power dissipation12 watts maximum
Build up voltage4 Volts @ AVR terminals
Analogue InputMaximum input±5V dc
Sensitivity1v for 5%
Input resistance1k ohm
Quadrature Droop Input10 ohms burden
Max. sensitivity: 0.07 A for 5% droop 0PF
Max. input: 0.33A
EnvironmentalVibration20-100 Hz,50mm/se
100Hz – 2kHz, 3.3g
Operating temperature-40 to +70 Deg. C
Relative Humidity 0-70 Deg. C95%
Storage temperature-55 to +80 Deg. C

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1 review for AVR SX440 Automatic Voltage Regulator for Stamford Diesel Generator

    Niamh
    July 22, 2021
    The AVR SX440 genset ATS switch controller is very easy to use and can easily control the switching and automatic switching functions of the genset, which provides great convenience for my emergency power generation.
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