66
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
APPENDIX D
ABBREVIATIONS & ACRONYMS
° C
Degrees Celsius
° F
Degrees Fahrenheit
A Amperes
Aac
AC Current
AC
Alternating Current
Adc
DC Current
AVR1
Automatic Voltage Regulation, Single-phase Sensing
AVR3
Automatic Voltage Regulation, Three-phase Sensing
CAN
Controlled Area Network
CT
Current Transformer
DC
Direct Current
ECU
Electronic Control Unit
EEPROM
Electrically Erasable Programmable Read Only Memory
FCR
Field Current Regulation
g Gram
G
Unit of gravitational acceleration
HMI
Human Machine Interface.
Hz Hertz
k
Kilo- (1,000x)
lb Pound
LED
Light Emitting Diode
LSB
Least Significant Byte
M
Mega- (1,000,000x)
m
Milli- (0.001x)
MSB
Most Significant Byte
PDU
Protocol Data Unit
PF
Power Factor
PMG
Permanent Magnet Generator
PT
Potential Transformer
PU
Per Unit
RAM
Random Access Memory
RMS
Root Mean Square
SPDT
Single Pole, Double Throw
THD
Total Harmonic Distortion
u
Micro- (0.000001x)
V Volts
VA
Volt-Amps, for Apparent Power
Vac
AC Voltage
VAR
Reactive Volt-Amps, for Reactive Power
Vdc
DC Voltage
W Watts
Ω Ohms
