© 2018 Power-Tronics, Inc.
8
Connection A
(
See page 9
if the generator will be paralleled using this connection)
Connection A
is a Full-Wave rectified configuration, which allows a maximum output of
210VDC @ 5A
with an input voltage of 240VAC.
This connection is typically used on higher voltage excitation fields (generally referred to
as 125V fields) or on shunt control fields where the full-load excitation voltage is greater
than 63VDC.
Note that the maximum input voltage to the XR5B-400 Universal Voltage regulator
is 240VAC!
DO NOT input 277VAC into the XR5B-400!
Severe damage to the unit
will result! For use on 480V systems, either connect the regulator to the winding center
taps T7 and T9 (
See Page 6
) or use a
480-240V step-down transformer rated at
1.5KVA.
Connecting the input of the XR5B-400 to 2 different legs of the generator as shown in
the diagram below will result in greater regulation accuracy than when connecting line-
neutral.
NOTE:
It is not necessary
to jumper terminals
7 and 8 if not using
the Remote Voltage
Adjustment!
XR5B-400 Specialty Series
Universal Voltage Regulator
NOTE:
If the generator is to be operated below 400 Hz, a disconnect or switch should be installed in
series with the incoming power to terminals #1 and #2 on the XR5B-400.
NEVER install a switch or breaker on the DC or Exciter side of the voltage regulator!
Only install a switch or disconnect on the AC Side of the regulator!
240VAC
MAX!
100K, 2W
Regulator On/Off
Switch
Rate for:
240V @ 10A
