10
Glossary and List of Abbreviations
CB
Circuit Breaker
CT
Current Transformer
DI
Discrete Input
DO
Discrete (Relay) Output
ECU
Engine Control Unit
FMI
Failure Mode Indicator
GCB
Generator Circuit Breaker
GOV
(speed) Governor; rpm regulator
HMI
Human Machine Interface e.g., a front panel with display and
buttons for interaction
I
Current
MCB
Mains Circuit Breaker
MPU
Magnetic Pickup Unit
N.C.
Normally Closed (break) contact
N.O.
Normally Open (make) contact
NC
Neutral Contactor
OC
Occurrence Count
Operation
In (general) operation.
State when the genset is running according to the selected
mode, all parameters are in allowed values and ranges, and
without OPEN requests or alarms. Somehow "waiting for next
occurrence".
P
Real power
P/N
Part Number
PF
Power Factor
PT
Potential (Voltage) Transformer
Q
Reactive power
S
Apparent power
S/N
Serial Number
SPN
Suspect Parameter Number
V
Voltage
88
easYgen-400
B37884A
10 Glossary and List of Abbreviations
Released
