Specification :

AVR SX460

SX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator( AVR) and forms part of the excitation system for a brushless alternator.

Technical specification

input
voltage Jumper selectable 95-132V ac or190-264V ac

frequency 50-60 Hz nominal

phase 1

output

voltage Max 90V dc at 207V ac input

Current Continuous 4 A dc
Intermittent 6A for 10 secs

resistance 15 ohms minimum

regulation + / - 1.0% ( see note)

Thermal drift 0.05% per deg.c change in AVR ambient

Typical system response

AVR response 20 ms

Filed current to 90% , 80 ms

Machine volts to 97% , 300ms

External voltage adjustment + / - 10% with 1 k ohm 1 watt trimmer( see note 3)

Under frequency protection

Set point 95% Hz

slope 170% down to 30 Hz

Unit power dissipation 10 watts maximum

Build up voltage 4 volts @ AVR terminals

Environmental

Vibration 20-100 Hz 50mm/ sec
100 Hz 2kHz 3.3g

Operating temperature -40 to + 70c

Relative humidity 0-70c, 95%

Storage temperature -55 to + 80c