GENERATOR TYPE AUTOMATIC VOLTAGE REGULATOR (“M” PREFIX)
For the ultimate in
control, an AVR designed to operate with the STAMFORD Permanent Magnet
Generator (PMG) system is often specified. In this design, the AVR receives its
power from a separate source in the form of a small PMG, mounted on the end of
the main generator shaft.
The advantage of
this is the AVR power source is not affected by sudden loads applied to the
generator, hence the excitation remains at full strength, providing superior
motor starting and short circuit performance.
The MX341 achieves
voltage regulation of ±1.0%, through the use of the PMG system. Protection
against sustained over-excitation is standard on this AVR, as is a special
engine relief load acceptance feature which enables full load to be applied in
a single step.
The MX231 has all
the features of the MX341, additionally achieving voltage regulation of 0.5%
with 3 phase RMS sensing, built in overvoltage protection and optional short
circuit current level adjustment.
The combination of
PMG providing an isolated power source and the MX321 s RMS sensing makes an
ideal arrangement for supplying the non-linear loads such as supplies for
computers or variable speed motors etc.
generators can be configured to meet practically every application requirement.
This summary chart shows the main features of the product ranges.