InteliGen
NT
, InteliSys
NT
, InteliMains
NT
– Troubleshooting Guide,
SW version IGS-NT-3.1.0, IM-NT-3.1.0, ©ComAp
– August 2018
33
IGS-NT Troubleshooting Guide.pdf
IGS-NT Alarm/History
record
Alarm/
History
Appeara
nce
Description
during synchronisation and you may need to adjust their
setting.
Actual state of synchronization is visible on the controller
measurement screen with synchroscope where speed and
voltage regulators' outputs, slip frequency and generator
and mains/bus voltages can be observed during the
synchronization process.
BOC L1, L2 or L3 under
A+H
Generator L1, L2 or L3 voltage was under the
Gen <V
BOC
limit for
Gen V del
time
.
Undervoltage protections
are based on
Gener protect
:
Gen <V BOC
and
Gen V del
setpoints. This alarm is issued if voltage protections are
based on phase to neutral voltages. It means that
Basic
settings
:
FixVoltProtSel
is set to PHASE-NEUTRAL.
19
BOC L1, L2 or L3 over
A+H
Generator L1, L2 or L3 voltage was over the
Gen >V BOC
limit for
Gen V del
time
.
Overvoltage protections are
based on
Gener protect
:
Gen >V BOC
and
Gen V del
setpoints. This alarm is issued if voltage protections are
based on phase to neutral voltages. It means that
Basic
settings
:
FixVoltProtSel
is set to PHASE-NEUTRAL.
19
Sd L1, L2 or L3 over
A+H
Generator L1, L2 or L3 voltage was over the
Gen >V SD
limit for
Gen V del
time
.
Overvoltage protections are
based on
Gener protect
:
Gen >V SD
and
Gen V del
setpoints. This alarm is issued if voltage protections are
based on phase to neutral voltages. It means that
Basic
settings
:
FixVoltProtSel
is set to PHASE-NEUTRAL.
19
BOC L12, L23 or L31 under
A+H
Generator L12, L23 or L31 voltage was under the
Gen <V
BOC
limit for
Gen V del
time
..
Undervoltage protections
are based on
Gener protect
:
Gen <V BOC
and
Gen V del
setpoints. This alarm is issued if voltage protections are
based on phase to phase voltages. It means that
Basic
settings
:
FixVoltProtSel
is set to PHASE-PHASE.
19
BOC L12, L23 or L31 over
A+H
Generator L12, L23 or L31 voltage was over the
Gen >V
BOC
limit for
Gen V del
time
.
Overvoltage protections are
based on
Gener protect
:
Gen >V BOC
and
Gen V del
setpoints. This alarm is issued if voltage protections are
based on phase to phase voltages. It means that
Basic
settings
:
FixVoltProtSel
is set to PHASE-PHASE.
19
Sd L12, L23 or L31 over
A+H
Generator L12, L23 or L31 voltage was over the
Gen >V
SD
limit for
Gen V del
time
.
Overvoltage protections are
based on
Gener protect
:
Gen >V SD
and
Gen V del
setpoints. This alarm is issued if voltage protections are
based on phase to phase voltages. It means that
Basic
settings
:
FixVoltProtSel
is set to PHASE-PHASE.
19
BOC fgen under
A+H
Generator frequency was under the
Gen <f
limit for
Gen f
del
time
.
Under frequency protection is based on
Gener
protect
:
Gen <f
and
Gen f del
setpoints.
20
BOC fgen over
A+H
Generator frequency was over the
Gen >f
limit for
Gen f
del
time
.
Over frequency protection is based on
Gener
protect
:
Gen <f
and
Gen f del
setpoints.
20
BOC ReversePwr
A+H
This alarm is issued by the reverse power protection. This
protection is based on
Gener protect
:
Reverse power
and
ReversePwr del
setpoints. This alarm means that either
engine speed/power control does not work properly or