Doosan G20 SIIIA, Operation & Maintenance Manual

Page: 65 / 122

65 G20, 30, 40 SIIIA Operation & Maintenance Manual
OPTIONS [CONT’D]
ENGINE PROTECTION
Eng prot del [s]
During the start of the generator set, some engine
protections have to be blocked (e.g. Oil Pressure). The
protections are unblocked after the protection del time.
The time starts after reaching START RPM.
Alarm Horn
Three selections possible:
NONE = Horn only sounds for 10 seconds prior
to a start in Auto Mode.
SHUTDOWN = Horn sounds for any shutdown
and also for an Autostart.
SD+ WARNING = Horn sounds for any alarm or
shutdown and also for an Autostart.
Overspeed
Threshold for overspeed protection.
Wrn Oil Press
Warning threshold for low oil pressure.
Sd Oil Press
Shutdown threshold level low oil pressure.
Oil Press Del
Delay for oil pressure warning / shutdown.
Sd Engine Temp
Shutdown threshold level for high engine coolant
temperature.
Wrn Engine Temp
Warning threshold level for high engine coolant
temperature.
Wrn Eng Temp Low
Warning threshold level for low engine coolant
temperature.
Engine Temp Del
Delay for high / low engine coolant temperatures.
Wrn Fuel Level
Warning threshold level for low fuel level.
Sd Fuel Level
Shutdown threshold level for low fuel level.
Fuel Level Del
Delay for low fuel level.
Batt Overvolt
Warning threshold for high battery voltage.
Batt Undervolt
Warning threshold for low battery voltage.
Battvolt del
Delay for low battery voltage alarm.
NextServTime [h]
Counts down when engine running. If reaches zero, an
alarm appears.
ALTERNATOR PROTECTION
Overload
Threshold for generator overload (in % of nominal power).
Overload Wrn
Threshold for generator overload warning (in % of
nominal power).
Overload del
Delay for generator overload alarm.
Ishort
Shutdown occurs when lshort circuit limit is reached.
Ishort del
Delay for lshort Alarm.
2Inom del
IDMT is "very inverse" generator over current protection.
2Inom del is Reaction time of IDMT protection for 200%
overcurrent Igen = 2* Nominal current.
Curr unbal del
Delay for generator current asymmetry.
Gen >V Sd
Shutdown level for generator over voltage. All three
phases are checked. Maximum out of three is used.
Gen >V Wrn
Warning level for generator over voltage. All three phases
are checked. Maximum out of three is used.
Gen <V Sd
Shutdown level for generator under voltage. All three
phases are checked. Minimum out of three is used.
Gen <V Wrn
Warning level for generator under voltage. All three
phases are checked. Minimum out of three is used.
Gen V del
Delay for generator under voltage and over voltage alarm.
Volt unbal
Threshold for generator voltage unbalance alarm.