ABB RET670 User Manual

9.3.6.2 Overfrequency protection SAPTOF
Main menu/Settings/Setting Group/Frequency protection/
OverFrequency(PTOF,81)/SAPTOF:x
Displays available instances of SAPTOF with a number of settings per instance.
The settings are operation, start frequency, base voltage setting, internal blocking
level, operate time delay and reset time delay. For the Overfrequency function to
operate correctly the Operation setting must be On.
9.3.6.3 Rate-of-change frequency protection SAPFRC
Main menu/Settings/Setting Group N/Frequency protection/
RateOfChangeOfFrequency(PFRC,81)/SAPFRC:x
Displays available instances of SAPFRC with some settings per instance. The
settings include parameters such as operation, base voltage setting, start frequency,
internal blocking level, time delay to trip and frequency restoration.
9.3.6.4 Underfrequency protection SAPTUF
Main menu/Settings/Setting Group N/Frequency protection/
Underfrequency(PTUF,81)/SAPTUF:x
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)/CVGAPC:x
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.
1MRK504114-UEN E Section 9
Read and change settings
65
Operator's manual

ABB RET670 Specifications

General

Brand	ABB
Model	RET670
Category	Protection Device
Language	English