9.3.6.4
Underfrequency protection SAPTUF
Main menu/Settings/Setting Group N/Frequency protection/
Underfrequency(PTUF,81)/TUF
Displays available instances of SAPTUF with a number of settings per instance.
These include parameters like operation, base voltage, and start frequency. To
ensure the proper operation of the Underfrequency function the
Operation
setting
must be
On
.
9.3.7
Multipurpose protection
9.3.7.1
Overview
Under Multipurpose protection there are several instances of General current and
voltage parameters. This function has current and voltage inputs. The parameters
available are based on the data from these inputs. Within each instance operation
for the included functions can be set to On or Off and a large number of parameters
can be set.
9.3.7.2
General current and voltage protection CVGAPC
Main menu/Settings/Setting Group N/Multipurpose protection/
GeneralCurrentVoltage(GAPC)/GF
Displays available instances of CVGAPC with several settable parameters per
instance. These settings are available for the user defined functions configured with
the help of the Multipurpose protection function.
9.3.8
Secondary system supervision
9.3.8.1
Overview
Under Secondary circuit supervision there are settings for Current circuit
supervision and Fuse failure. There are five instances of Current circuit supervision
with parameters for minimum operation current, rated current and operation. There
are six instances of Fuse failure supervision parameters for setting rated current,
voltage, operation mode and several other parameters.
9.3.8.2
Current circuit supervision CCSRDIF
Main menu/Settings/Setting group N/Secondary system supervision/
CurrentCircuitSupervision(RDIF,87)/CCS
Displays available instances of CCSRDIF with some settings per instance. There
are settings for operation, base current setting, blocking of function, and minimum
threshold for current differential.
1MRK 502 014-UEN C
Section 9
Read and change settings
55
Operator's manual
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