Description:
SX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator(AVR) and forms part of the exciation 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 directly from the generator termainals.

Positive voltage build up from residual levels is ensured by the use of effcient semiconductors
in the power circuitry of the AVR.

Provision is made for the connection of a remote voltage trimmer,allowing the user fine control of the generator’s output

Specification:
INPUT

       Voltage      Jumper selectable

                   95-132V ac or

190-264V ac

       Frequency    50-60HZ 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%

THERMAL DRIFT

       0.05% per deg.C change in AVR ambient

TYPICAL SYSTEM RESPONSE

       AVR respone         20ms

       Filed current to 90%   80ms

       Machine Volts to 97%  300ms

EXTERNAL VOLTAGE ADJUSTMENT

       +/-10% with 1k ohm 1 watt trimmer

UNDER FREQUENCY PROTECTION

        Set point    95%HZ

        Slope       170% down to 30HZ

UNIT POWER DISSIPATION

        10 watts maximum

BUILD UP VOLTAGE

        4 Volts @ AVR terminals

Environmental

        Vibration   20-100HZ             50mm/sec

                   100Hz 2kHz           3.3g

        Operating temperature              -40 to +70 C

        Relative Humidity 0-70C            95%

        Storage temperature                -55 to +80 C

Notes:
1.With 4% engune governing
2.After 10 minutes.
3.Applies to Mod status F onwards.Generator de-rate may apply.Check with factory.
4.Factor set,semi-sealed,jumper selectable.
5.Non condensing.