IS-NT-Async-SPI, SW Version 1.2, ©ComAp – February 2011
IS-NT-Async-SPI-1.2.PDF
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Gen V unb del [ s ]
Delay for generator voltage unbalance alarm.
Step: 0,1s
Range: 0 – 600,0 s
Protection: BreakerOpen & Cool-down.
Gen I unbal [ % ]
Threshold for generator current asymmetry (unbalance) in % of nominal current. The current unbalance is
calculated as a maximum difference between phase currents.
Step: 1%
Range: 0 – 200% of Nomin current
Gen I unb del [ s ]
Delay for generator current asymmetry (unbalance).
Step: 0,1 s
Range: 0 – 600,0 s
Protection: BreakerOpen & Cool-down.
Mains protect
The content depends on programmable protections settings. This list contains pre-set protections from
default archives + fixed protections, which are always present:
Mains >V MP [ % ] (FV)
Threshold for mains over voltage.
Step: 1%
Range: Mains<V MP – 150 % of MainsNomV or MainsNomVph-ph respectively
Protection: Mains protection.
Force value possibility: Yes
Mains <V MP [ % ] (FV)
Threshold for mains under voltage.
Step: 1 %
Range: 50 – Mains>V MP % of MainsNomV or MainsNomVph-ph respectively
Protection: Mains protection.
Force value possibility: Yes
Hint:
All three phases are checked for mains voltage protection. Minimum or maximum out of three is used.
For high voltage applications, the MainsNomVph-ph can be used for nominal voltage setting.
Mains V del [ s ]
Delay for mains under and over voltage protection.
Step: 0,02 s
Range: 0,00 – 600,00 s
Mains >f [ % ] (FV)
Threshold for mains over frequency in % of nominal frequency.
Step: 0,1%
Range: Mains<f - 150,0 % of Nominal freq
Protection: Mains protection.
Force value possibility: Yes
Mains <f [ % ] (FV)
Threshold for mains under frequency in % of nominal frequency.
Step: 0,1%
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