This setpoint adjusts the trip level for ROCOF protection (Rate Of Change Of
Frequency). The "filtration level" for the ROCOF protection is adjusted by setpoint
ROCOF Win.
NOTE:
To activate or deactivate ROCOF protection use ROCOF prot. Choose proper
breaker which will be opened if ROCOF protection activates by adjusting setpoint
VS/ROCOF CB sel (not available in SPI application).
This setpoint adjusts the threshold level for the mains voltage unbalance
protection. The threshold is adjusted in % of the nominal generator voltage, which
is either MainsNomV or MainsNomVph-ph, depending on the position of the
setpoint FixVoltProtSel. The protection is created in the default archive as
universal analog protection at the value Mains V unbal, which is calculated as
maximum difference between two mains phase voltages.
The protection activates if the voltage unbalance gets over the threshold for time
longer than MainsV unb del.
NOTE:
The asociated protection to this setpoint is Mains protect type. This type of
protection is recorded into the history file, however it is not indicated in the Alarm
list. When a protection of Mains protect type occurs the controller opens either
MCB (in applications where the MCB is controlled) or GCB (in applications where
the MCB is not controlled).
NOTE:
The voltage unbalance protection is created in the default archive using the
mechanism of universal analog protections. That means this setpoint is one of
general-purpose setpoints, which may be used for different purpose if the
protection is deleted from the configuration.
This setpoint adjusts the delay for the mains voltage unbalance protection. The
threshold for the protection is adjusted by setpoint Mains V unbal.
NOTE:
The mains voltage unbalance protection is created in the default archive using the
mechanism of universal analog protections. That means this setpoint is one of
general-purpose setpoints, which may be used for different purpose if the
protection is deleted from the configuration.
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