IS-NT-Async-SPI, SW Version 1.2, ©ComAp – February 2011
IS-NT-Async-SPI-1.2.PDF
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Vector shift protection - limits and indications
Mains protect: VectorS prot
VectorS limit
VectorShiftTrp
VectorShiftAct
Hint:
For more information about Vector Shift Protection see chapter Setpoints / Mains protect of this manual or
chapter Vector Shift Protection of NPU User Guide 1.9.
Generator voltage and frequency protections - limits and indications
Basic settings:
VoltProtSelect = PHASE-NEUTRAL
Gener protect: Gen >V BOC
Gen <V BOC
Gen V Sd
Gen V del
Gen >f
Gen <f
Gen f del
BOC L1 under
BOC L2 under
BOC L3 under
BOC L1 over
BOC L2 over
BOC L3 over
Gen V L1-N
BOC fms under
BOC fms over
Gen freq
Gen V L2-N
Gen V L3-N
BOC L12 under
BOC L23 under
BOC L31 under
BOC L12 over
BOC L23 over
BOC L31 over
Gen V L1-L2
BOC fms under
BOC fms over
Gen freq
Gen V L2-L3
Gen V L3-L1
Basic settings:
VoltProtSelect = PHASE-PHASE
Gener protect: Gen >V BOC
Gen <V BOC
Gen V Sd
Gen V del
Gen >f
Gen <f
Gen f del
Shutdown override
If the Binary input Sd override is closed, all 2
nd
level protections are disabled to allow engine run in an
emergency situation, e.g. sprinkler devices power supply.
All protections are shown in Alarmlist and recorded into History, but the controller doesn’t stop the engine
because of them. If the input is deactivated and some protections are still active or not yet reset, the
controller starts to take these protections into account and consequently stops the engine.
Hint:
All 2
nd
level protections are locked out, except of these:
- Emergency stop
- Overspeed
- Underspeed (only if Fuel solenoid = GAS ENGINE)
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