© 2012 Power-Tronics, Inc.
7
Parallel Connection Diagram
To use the SEM100A Static Exciter Module in a parallel configuration either with
another generator or with a buss such as a utility, use the diagram below for proper
hookup with the SEM100A.
NOTE:
Power-Tronics products parallel using the Reactive Droop compensation method. This allows
our products to parallel with existing systems easily while also allowing islanded operation with the flip of
a switch. When initially installing the droop resistor, set it for approximately 7
Ω
before final adjustment
later. If the droop is excessive when load testing, reduce the resistance a bit at a time until satisfactory
droop is achieved.
CT should be sized at 25VA or larger capacity!
XR or UVR Series
Voltage Regulator, or
UVR, XR, or PC series
Phase Controller
SEM100A
AC1 AC2/F- F+
Gr
a
y
Wh
it
e
Re
d
Fuse Inputs
at no more
than
100ADC!
XR or UVR Series
Voltage Regulator,
or
UVR, XR, or PC
series Phase
Controller
NOTE:
It is not necessary to jumper
terminals 7 and 8 if not using the
Remote Voltage Adjustment!
NOTE:
If the generator is to be
operated below 50/60 Hz, a
disconnect or switch should
be installed in series with
red wire of the SEM100A.
NEVER install a switch or
breaker on the DC or
Exciter side of the Static
Exciter!
Only install a
switch or disconnect in
the red wire, or on the AC
side of the SEM100A!
