© 2018 Power-Tronics, Inc.
14
Initial Setup and Commissioning
1.
Install the regulator according to the correct wiring diagram (Connection A, B, or C).
2.
If installing the XR5B-400 on a brush-type generator, verify that the brushes and brush riggings
are isolated, ungrounded, and connected ONLY to the XR5B-400.
3.
Turn the internal controls 15 or more turns counter clockwise (left) or until you hear the screws
click. This procedure is necessary in case the original factory settings have been altered.
4.
If you are using a remote voltage adjustment, set it at 50% of adjustment.
5.
If the generator is to be paralleled, set the droop resistor between 2Ω and 3Ω.
6.
Start up the prime mover and bring up to operating speed and turn on the regulator switch (if
used).
7.
Set the internal voltage adjustment to the desired voltage setting for the generator output by
turning the adjustment screw clockwise (right).
Note that the voltage adjustment is a 25-turn pot!
You may notice unsteady or pulsating
voltage. If so turn the Stability adjustment clockwise until the pulsation stops.
As you turn the
stability adjustment, the terminal voltage will rise.
Always keep your voltage within 10%
of the desired setpoint with your voltage adjustment.
8.
Place the generator on line and observe the frequency and voltage.
9.
If the generator is being paralleled, measure the droop during loading and adjust the droop
resistor as necessary. Reducing droop resistor resistance will reduce droop.
NOTE:
Loading the generator with a purely resistive load-bank may cause undesirable
droop characteristics such as no droop, very slight droop, or even rising terminal
voltage. Measure droop with a mixed load for best results.
10.
If paralleling and the terminal voltage rises or excessive amperage exportation occurs during
loading with a mixed load connected, reverse the CT leads and try again.
11.
Observe voltage regulation during no-load and full-load conditions. Once the voltage is set and
regulating characteristics are satisfactory the installation procedure is complete.
Internal
voltage
adjustment
System
indicator light
Stability
adjustment
