© 2020 Power-Tronics, Inc.
4
Determining Correct Application Sizing
The XC15 Voltage regulator is designed for use with 100-277VAC input. It contains internal
suppression for use with brush-type generator sets. Before installation, it is necessary to verify
that the XC15 is the correct product for your application.
To determine if the XC15 is the correct product for your generator you need to know any two of
the following 3 specifications from the rating plate of your generator:
1: Exciter Field Voltage (in DC Volts)
[Generally given in full load Voltage on nameplates]
2: Exciter Field Resistance (in Ohms)
[See Note Below]
3: Exciter Field Amperage (in DC Amps)
[Generally given in full load Amps on nameplates]
Using the specifications obtained from your generator exciter, verify
that your generator fits the specifications below:
•
Exciter Field Resistance
≥2.5Ω
& Exciter Full-Load Voltage
≤32VDC
Use
120V Connection
(See Page 8)
•
Exciter Field Resistance
≥5Ω
& Exciter Full-Load Voltage
≤63VDC
Use
240V Connection
(See Page 9)
or
277V Connection
(See Page 10)
WARNING:
BRUSH AND SLIP RING CONNECTION PROBLEMS ARE
THE #1 SOURCE OF VOLTAGE CONTROL PROBLEMS AND FAILURE OF
VOLTAGE REGULATORS!!!
DO NOT INSTALL THE
XC15
IF THE BRUSHES
AND/OR SLIP RINGS ARE NOT IN EXCELLENT CONDITION!!!
STOP AND CORRECT BRUSH AND SLIP RING CONNECTION PROBLEMS IF ANY
OF THE FOLLOWING CONDITIONS ARE PRESENT:
•
GROOVES IN SLIP RINGS
•
ROUGH SLIP RING APPEARANCE OR GHOSTING (CHATTERING)
•
OIL CONTAMINATION ON BRUSHES OR SLIP RINGS
•
DULL, ROUGH, STRIPED, PITTED, OR METALLIC APPEARANCE OF BRUSH
FACES
•
FIELD RESISTANCE MEASURED BETWEEN SLIP RING BRASS AND FIELD
RESISTANCE MEASURED BETWEEN FIELD LEADS EXCEEDS 1-2% DIFFERENCE
