12
F O R M
DVR
®
2400 and DVR
®
2500 Digital Voltage Regulator
Installation, Operation and Maintenance Manual
SB0056E
Revised
November 2018
Regal Beloit America, Inc.
100 East Randolph Street
Wausau, WI 54402-8003
www.regalbeloit.com/Brands/
Marathon-Generators
PROTECTION FUNCTIONS
CONFIGURABLE SHUTDOWNS
Protection
Feature
Customer
Disable/
Enable
Alarm Variable
Alarm
Threshold
Range
Alarm Reset
Hysteresis
Threshold
Units
Basis
Timer
Range
Timer
Units
Alarm
Code
Fault
Code
Field Over-
excitation
No
Exciter Field
Current
0.50 to 5.00
0.5 - 5.0
A
N/A
1.0 to 15.0
S
A008
F008
Field Under-
excitation
Yes
Total Reactive
Power
-100.0 to
-5.0
0.0 - 5.0
%
Rated
Reactive Power
(kVAR)
1.0 to 15.0
S
A002
F002
Generator
Over-voltage
No
AVR1: Generator
Line-line Voltage
AVR3: Average
of Generator
Line-line Voltage
5.0 to 20.0
0.0 - 5.0
%
Voltage
Set-point
0.1 to 15.0
S
A013
F013
Generator
Under-
voltage
Yes
5.0 to 50.0
0.0 - 5.0
%
Voltage
Set-point
1.0 to 15.0
S
A012
F012
Generator
Voltage
Imbalance
No
AVR1: Not
Enabled
AVR3: Difference
of Max. & Min.
Line-line voltage
20.0 to 35.0
0.0 - 5.0
%
AVR3: Average
of Three
Generator
Line-line
Voltages
1.0 to 15.0
S
A016
F016
Generator
Loss of
Sensing
AVR1
Yes
Yes
10.0 - 40.0
N/A
%
Voltage Set
Point
2X LOS
AVR3 timer
mS
N/A
F011
Generator
Loss of
Sensing
AVR3
Yes
Yes
20.0 - 35.0
N/A
%
Voltage Set
Point
10 - 1000
mS
N/A
F011
Generator
Reverse
Power
Yes
Total Real Power
-5.0 to
-100.0
5.0
%
Rated Power
(kW)
1.0 to 15.0
S
A014
F014
RTD Over
Temperature
(1-8)
Yes
RTD Temperature
0 to 260
(0- 100) %
Deg C
N/A
0 to 3600
S
A005
F005
Table 4-2
Before proceeding forward, carefully read and fully understand the warnings, cautions, & safety notice statements in this manual. Failure to do so could
cause severe injury, death, and/or equipment damage.
Incorrect setting for the protective functions can harm the DVR regulator and the alternator and can cause severe injury, death, and/or equipment damage.
