Signals; Signal Designations; Bay/Station Protection - Function Overlapping Signal; Outputs Generated By Bp And Used As Sp Inputs (Default Signals) - ABB RELION REB500 Technical Manual

1MRK 505 406-UEN B
Section 3
3.1

Signal designations

3.1.1 Bay/Station protection — function overlapping signal
3.1.1.1 Signal designations
The BP/SP function overlapping (general) signals correspond to the signal numbers
nomenclature of the station protection system (for details, see
For example, 19205_Block BP (5 digit signal number)
3.1.1.2

Outputs generated by BP and used as SP inputs (default signals)

Table 1:
Parameter
11120_BP External TRIP
11125_BP External TRIP BB
zone
13210_BP Block BFP
13610_BP Trip transfer
13761_BP Start BFP L1L2L3_5
13770..13780_BP Start BFP Lp
13785_BP Start BFP L1L2L3
13790_BP External start BFP
Table continues on next page
Bay protection functions REB500
Technical manual

Signals

BU_ BP outputs to SP inputs (default signals)
Description
This is the tripping signal generated by bay protection of REB500. It trips faults
on a line with the aid of the REB500 tripping contact. Tripping thus takes
account of the busbar configuration at the time. The signal is activated by the
bay protection directly and does not therefore appear as binary input signal.
This is a tripping signal generated by the bay protection of REB500 which is
used to trip the entire bus zone to which the bay is connected. The tripping
command is applied to all the bay units of the bus zone and sections of busbars
interconnected by an isolator (intertripping).
This signal is directly activated by the bay protection and doesn't therefore
appear as a binary input signal. The operation of the breaker failure protection
of the corresponding feeder is blocked. When the blocking signal is cancelled
and providing a starting signal is present and current is flowing, the timers start
again at t = 0.
Reserved for the special application "trip transfer".
This signal is directly activated by the bay protection unit and does not
therefore appear as a binary input signal.
This signal is functionally identical to signal 13760_Start BFP L1L2L3_5, but it is
directly activated by the bay protection and does not therefore appear as a
binary input signal.
Breaker failure protection with phase-selective starting (p = 1, 2 or 3). The
breaker failure protection timer starts when this signal is activated by BP
functions and the BFP measures a current in the corresponding phase. This
signal is directly activated by the bay protection and does not therefore appear
as a binary input signal.
Breaker failure protection with three-phase starting. The breaker failure
protection timer starts when this signal is activated and the BFP measures a
current in any phase.
This signal is directly activated by the bay protection and does not therefore
appear as a binary input signal.
Breaker failure protection with three-phase starting. The breaker failure
protection timer starts when this signal is activated regardless of the current
measurement.
This signal is directly activated by the bay protection and does not therefore
appear as a binary input signal.
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Section 3
Signals
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