InteliLite4 AMF20 Global Guide
572
Description
This alarm evaluates the Mains phase voltage in phases 1. The following
setpoints are related to it:
Mains Underfrequency (page 279)
Mains < > Frequency Delay (page 281)
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Alarm Type BOC
Alarmlist message BOC Current Unbalance
Alarm evaluated All the time
Related applications AMF,MRS
Description
This alarm evaluates the unbalance of the phase currents, i.e. the difference
between highest and lowest phase current at any given time. The following
setpoints are related to it:
Current Unbalance BOC (page 263) adjusts the maximum allowed
difference between the highest and lowest phase current at any given
time.
Current Unbalance BOC Delay (page 263) adjusts the alarm delay.
BOC Current Unbalance
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Alarm Type BOC
Alarmlist message BOC Overload
Alarm evaluated All the time
Related applications AMF,MRS
Description
The alarm is issued when the gen-set power is over the limit for time period
longer than the delay. The behavior of the overload alarm is adjusted by the
following setpoints:
Overload BOC (page 260) adjusts the overload limit.
Overload Delay (page 261) adjusts the delay
BOC Overload
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Alarm Type BOC
Alarmlist message BOC Short Circuit
Alarm evaluated All the time
Related applications AMF,MRS
Description
This is a fast overcurrent protection. The following setpoints are related to this
alarm:
Short Circuit BOC (page 261) adjusts the short current limit
Short Circuit BOC Delay (page 262) adjusts the delay in fine steps
BOC Short Circuit
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