© 2020 Power-Tronics, Inc.
9
240V Input Power & Field Connection Diagram
(
See pages 11-13
for control wiring information)
The XC15 is a Half-Wave rectified voltage regulator, which allows a maximum of
105VDC at 20 ADC with an input voltage of 240VAC.
This connection is typically used on generators with full load field voltages of 63VDC or
less and full load exciter field amperage less than 12ADC.
Note that the maximum input voltage to the XC15
Voltage regulator in this
connection is 240VAC!
DO NOT input 480VAC into the XC15
in this connection!
Regulation problems or damage to the unit may result! For use on 480V systems, use a
480-240V step-down transformer rated at 1.5KVA
or connect the regulator to the
winding center taps T7 and T9 (
See Pages 6 and 7
)
.
Connecting the input of the XC15
to 2 different phases of the generator will result in
greater regulation accuracy than when connecting line-neutral.
Diagram Assumes a 208-240V Generator
For 480V Generators, use a 1.5KVA
(or
larger)
Transformer
with a
240V
Secondary
OR
Connect to the Generator
winding center taps at
T7 and T9.
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!
See Page 11 for
Paralleling Wire
Diagram
100KΩ @ 2w
NOTE:
It is not necessary
to jumper terminals
R1 and R2 if not
using the Remote
Voltage Adjustment!
NOTE:
Jumper
X & Y if
generator
is not
paralleled!
See Pages 12-13
for External
Control Wiring
Diagrams
See Page 14 for
Battery Flash
Wiring Diagram
NOTE:
Use Double-Throw
switch rated:
20A @ 250VAC
2
nd
Circuit Used
for Battery
