
AC Generator 97
for varying the no-load speed of the prime mover. By adjusting this set point, one
can adjust the frequency or the load shared by one generator with the other operating
in parallel. In the isosynchronous generator, this adjustment is done by an automatic
control system with precise compensation feedback. We note two points here when
operating two generators in parallel:
1. Only one generator can be isosynchronous. Two isosynchronous generators
cannot work in parallel since they would have no intersection that makes
the common point of stable operation. In parallel, they would conict with
each other, could overload, and self-dest ...