- Single phase sensing

- Nominal input voltage : 230 to 270 V (terminals 8 and 9) or 400 to 480 V (terminals 8 and 10)

- Burden (sensing) : 10VA

- Frequency : 50 to 60 Hz

- Voltage range : 210 to 500V (depending on connections)

- Regulation ±1.5% (on the measured phases and with-out wave distortion)

- Underfrequency : either U/f (ST2 closed) or U/2f (ST2 open)

- Regulator response time : less than 10 ms

- Protections : • against overvoltage

• against sensing loss

• against alternator short circuit >10 s The protection operates by short circuiting the exciting current.

- Permanent derivated current : 4 A

- Temporary maximum derivated current : 10A

- Nominal field voltage : 100V

- Temporary maximum field voltage : 250V

- Operating temperature : -20 to 70°C

- Storage temperature : -25 to 80°C

- The electronic part of the regulator is totally encap-sulated

- Maximum power dissipation : 50W

- Environmental test :

• Salt spray : 8 days in accordance with standard NF C 20-711

• Ambient temperature variation : -20 to 70°C

• Vibration :

2 to 10 Hz: 2 mm peak to peak

10 to 100 Hz : speed of 46 mm/sec RMS velocity

100 to 300 Hz : 4g acceleration

- Parallel operation input : 1A and 5VA

- Size :

• height 180 mm

• width 140 mm

• depth 85 mm

• weight 1kg (2Lb)

CARE: In case of operation of the protection, the AVR is
automatically reset within a few seconds.