Changes And Additions To Earlier Released Revisions - ABB REF 54 Series Technical Reference Manual, General

REF 54_
8.2.
8.2.1.
106
Feeder Terminal
Technical Reference Manual, General
Release 1.5

Changes and additions to earlier released revisions

General
• Additional scaling factor for setting the rated current/voltage of the protected unit
(separate scaling factor for channels 1...10). For further information refer to
Section "Scaling the rated values of the protected unit for analog channels" on
page 38.
• Technical data of the VT1, VT2, VT3 and VT4 voltage transformers; range of the
adjustable rated voltage for primary current transformers is 0...440 kV instead of
the earlier 0...150 kV.
• Changes in the measurement function block MEFR1; the output "f" is renamed as
"FREQ". For further information, refer to the technical description of the MEFR1
function block.
• The storing procedure has changed; for further information, refer to section
"Saving parameters" in version E or later of the Operator's Manual.
Table 8.2.1-1 New protection functions
Function Description
DOC6Low, Directional overcurrent protection as low-set, high-set and instantaneous
DOC6High, stages
DOC6Inst
Freq1St1... Underfrequency or overfrequency protection, including the rate of change
Freq1St5 function, as five stages
SCVCSt1, Synchro-check or voltage-check function as two stages
SCVCSt2
TOL3Cab Thermal overload protection for cables
Table 8.2.1-2 New measurement functions
Function Description
MEDREC16 Transient disturbance recorder
Protocols & communication
• SPA file transfer support on a serial communication port on the front panel of the
feeder terminal enables the following:
• Downloading of the relay configuration via a front port.
• Uploading of recording files of the disturbance recorder MEDREC16.
• Uploading of the relay image file for the Relay Configuration Tool CAP 505
and the Relay Setting Tool CAP 501.
• SPA file transfer support on the rear serial port RS-485.
Hardware & mechanics
• Extended 4 mm clearance according to IEC 60664-1 (Insulation coordination for
equipment within low-voltage systems).
• New CPU module with a SW downloading port X3.1 at the rear plate of the relay.
1MRS750527-MUM