ABB REB500 - Operation and Maintenance; Maintenance of Bay Protection Functions; Protection Blocking; Protection Tripping

Section 6 1MRK 505 353-UEN
BP-Additions to base documentation
46 Application Manual
Bay protection functions REB500
6.2 Operation and maintenance
The following information about bay protection functionality applies in addition to
the Operation Manual of REB500.
6.2.1 Maintenance of bay protection functions
Before checking the bay protection functions, consider the possible effect of, for
example, secondary injection on other protection functions such as the busbar and
breaker failure protection functions.
Where there is doubt, block the station protection functions by ap-
plying the input signal “31205_Block SP” to the central unit.
6.2.2 Protection blocking
This section lists the indications and signals which occur when the bay protection
is blocked.
Table 56 BP blocked, central unit and bay units
HMI text
LEDs
Event
BP blocked
Green lit, yellow
flashes until button
on the local HMI
pressed
CU:
“49405_BP blocked” active
BU: “29405_BP blocked” active
6.2.3 Protection tripping
This section lists the indications and signals which occur when the bay protection
trips.
Table 57 BP tripped, central unit
HMI text
LEDs
Event
Date Time
DIST trip
Feeder name
Green lit,
red lit
CU:
None
Date Time
OCTD trip
Feeder name
Green lit,
red lit
CU:
None
Date Time
OCINV trip
Feeder name
Green lit,
red lit
CU
None
Date Time
I0INV trip
Feeder name
Green lit,
red lit
CU:
None
Date Time
Green lit,
CU:
None