AVR MX321 | Generic

The MX321 is a three phase, thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator.

SENSING INPUT

Voltage: 190 – 264V ac max, 2 or 3 phase

Frequency: 50 – 60 HZ nominal

POWER INPUT (PMG)

Voltage: 170-220V ac max, 3 phase, 3 wire

Current: 3A/phase

Frequency: 100 – 120 Hz nominal

OUTPUT

Voltage: max 120V dc

Current: continuous 3.7 A

Intermittent 6A for 10 secs.

Resistance: 15 ohms minimum

REGULATION

+/- 0.5% RMS with 4% engine governing 

THERMAL DRIFT

0.02% per deg. C chance in AVR ambient 

SOFT START RAMP TIME

0.4 – 4 seconds

TYPICAL SYSTEM RESPONSE

AVR response 10 ms

Field current to 90% 80 ms

Machine Volts to 97% 300 ms