© 2019 Power-Tronics, Inc.
4
Determining Correct Application Sizing
The XC14/XC15 Voltage regulator is designed for use with 120-240VAC input. It contains
internal suppression for use with brush-type generator sets. Before installation, it is necessary
to verify that the XC14/XC15 is the correct product for your application.
To determine if the XC14/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
≥
2.5
Ω
& Exciter Full-Load Voltage
≤
32VDC
Use
120V Connection
(See Page 8)
•
Exciter Field Resistance
≥
5
Ω
& Exciter Full-Load Voltage
≤
63VDC
Use
240V 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
XC14/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
