Numerical generator protection
ABB Switzerland Ltd
Utility Automation
REG316*4
1MRK502004-Ben
Page 9
Self-diagnosis and supervision
RE.316*4’s self-diagnosis and supervision
functions ensure maximum availability not
only of the protection terminal itself, but also
of the power system it is protecting. Hard-
ware failures are immediately signalled by an
alarm contact. In particular, the external and
internal auxiliary supplies are continuously
supervised. The correct function and toler-
ance of the A/D converter are tested by cycli-
cally converting two reference voltages.
Special algorithms regularly check the pro-
cessor’s memories (background functions). A
watchdog supervises the execution of the pro-
grams.
An important advantage of the extensive self-
diagnosis and supervision functions is that
periodic routine maintenance and testing are
reduced.
Supporting software
The operator program facilitates configura-
tion and setting of the protection, listing pa-
rameters, reading events and listing the vari-
ous internal diagnostic data.
The evaluation programs REVAL and WIN-
EVE (MS Windows/Windows NT) are avail-
able for viewing and evaluating the distur-
bances stored by the disturbance recorder.
Where the disturbance data are transferred via
the communications system to the distur-
bance recorder evaluation station, the file
transfer program EVECOM (MS Windows/
Windows NT) is also used.
The program XSCON (MS Windows) is
available for conversion of the RE.316*4’s
disturbance recorder data to ABB’s test set
XS92b format. This enables reproduction of
electrical quantities recorded during the dis-
turbance.
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