Description

he Stamford MX341 is a two-phase sensed AVR that creates part of the excitation system for a brushless generator. It enables closed loop control by anticipating the alternator output voltage at the main stator windings before modifying the exciter stator field strength.

It will sense the voltage in the main generator winding and will control the power fed to the exciter stator, allowing the rotor to sustain the generator output voltage within the identified limits. This compensates for speed, temperature, load and the power factor of the generator.

Key features of the Stamford AVR MX341:

Soft start circuitry is included in the MX341 AVR to provide a controlled and smooth buildup of the generator output voltage. There’s also a damping or stability circuit to guarantee a steady state and temporary performance.

A frequency measuring circuit repeatedly monitors the generator’s shaft speed and supplies under-speed protection of the excitation system.

For fine control of the generator’s output, provisions have been made for the connection of a remote voltage trimmer. The MX341 has been encapsulated to protect it from salt, moisture, and sand in the atmosphere. It is also mounted on anti-vibration mounts for protection against engine vibrations.

Stamford provides an analog input to enable connection to one of their Power Factor controllers or an alternative external device that has a compatible output. The Stamford AVR MX341 also has the facility for droop CT connection, which allows parallel running with generators that are similarly equipped.