124 GC250 Technical Manual
EAAM057608EN
52 Generator voltages unbalance
Icon:
Type:
Alarm
Category:
Generator protection
Related parameters:
P.0101
Number of generator phases
P.0102
Generator rated voltage
P.0315
Threshold voltage asymmetry (% phase rated power)
P.0316
Delay of voltage asymmetry
To disable:
P.0316=0
Enabled in:
MAN, AUTO, TEST, REMOTE START
This protection is only enabled if the system is three-phase (P.0101=3) and only if the engine
has been started by the controller (if the command for the fuel solenoid is activated) and is
disabled when the engine is started/stopped. In addition, generator voltage and frequency
must be within the tolerance range. Threshold P.0315 is expressed as a percentage of the
system rated voltage (phase voltage). It represents the maximum acceptable difference
(absolute value) between two phase-to-phase voltages. It activates if the difference between
two phase-to-phase voltages (absolute value) is continuously over the threshold P.0315 for
time P.0316.
53 Generator current unbalance
Icon:
Type:
Alarm
Category:
Generator protection
Related parameters:
P.0101
Number of generator phases
P.0102
Generator rated power
P.0106
Generator nominal power
P.0317
Threshold current asymmetry (% rated current)
P.0318
Delay for current asymmetry
To disable:
P.0318=0
Enabled in:
MAN, AUTO, TEST, REMOTE START
This protection is only enabled if the system is three-phase and only if the engine has been
started by the controller (if the command for the fuel solenoid is activated) and is disabled
when the engine is started/stopped. In addition, the generator voltages and frequency must
be within the tolerance range and the load must be changed-overt to the generator. Threshold
P.0317 is expressed as percentage of the system rated current (refer to the details for
maximum current protection to see how to obtain the rated current from P.0102 and P.0106).
It represents the maximum acceptable difference (absolute value) between any two phase
currents. The protection activates if the difference between any two currents (absolute value)
is continuously over the threshold P.0317 for time P.0318.
54 High oil temperature (from analogue sensor)
Icon:
Type:
Warning
Category:
Engine protection
Related parameters:
P.4025 Function for analogue input T.15 (CT)
or equivalent
parameter for other inputs
P.0216
Time for engine protection mask
P.0373
Threshold for high oil temperature
