STAMFORD MA330 VOLTAGE REGULATOR FOR STAMFORD GENERATORS

STAMFORD E000-13300

General Description / Specifications

The MA330 AVR is a three phase full wave, pulse width modulated type
automatic voltage regulator (AVR) and forms part of the excitation
system of the brushless generator. Excitation power is derived from
a shaft mounted three phase permanent magnet generator (PMG) which
provides an isolated delivers to the AVR direct circuits.

The independent PMG assures the performance of the AVR alongside
non-linear loads and reduces the radio regularity interference on
the generator terminals.

The AVR senses the voltage on the key generator winding either
straight or via transformers. This signal is used to manage the
power fed to the exciter stator (and hence the main rotor) to
maintain the generator output voltage within the specified
restrictions, compensating for load, speed, temperature and
power factor.

Sensing input:

> Voltage 170-250 Vac max
> Frequency 50-60 Hz nominal
> Phase 1 or 3
> Wire 2 or 3

Power input (PMG):

> Voltage 140-220 Vac max
> Frequency 100-120 Hz nominal
> 3 Phase, 3 Wire.

Output

> Voltage 180 V dc (max @ 1800 rpm)
> Current Continuous 6 A Intermittent 12 A for 10s
> Resistance 15Ω minimum

For more technical information please click on the data sheet located on the right side -->