Tripping Logic - ABB RELION REB500 Technical Manual

1MRK 505 406-UEN B
The parameter
regardless of current.
Table 47:
Parameter
VTSupDebDel
The signal VTSup indicates that the distance function is being blocked by the VT supervision
VTSupDel that the 12 s delay is running.
and
5.1.6.7

Tripping logic

The Trip Schemes tab gives access to the parameters for determining the tripping logic.
The various transfer tripping schemes are selected by setting the parameter
PUTT, POTT and OVERREACHING BLOCKING schemes). The possible settings are given below.
The settings for the respective scheme only appear after the appropriate communication
mode has been selected.
PUTT NONDIR
Permissive underreaching transfer tripping (non-directional)
Weak enables the weak infeed logic.
PUTT FWD
Permissive underreaching transfer tripping (in line direction)
No other parameters.
PUTT OR2
Permissive underreaching transfer tripping (overreaching zone/Zone 2)
Unblock selects the enabling logic for communications channel failure.
POTT
Permissive overreaching transfer tripping
Weak enables the weak infeed logic.
•
• Unblock selects the enabling logic for communications channel failure. Echo enables the
echo logic.
TransBl enables the logic for reversal of fault energy.
•
t1TransBl tripping signal duration by the wrong energy direction logic.
•
• t2TransBl max. operating time of the wrong energy direction logic.
BLOCK OR
Blocking scheme
• TransBl enables the logic for reversal of fault energy.
t1Block time allowed for the receipt of a PLC signal.
•
t1TransBl tripping signal duration by the wrong energy direction logic.
•
t2TransBl max. operating time of the wrong energy direction logic.
•
Bay protection functions REB500
Technical manual
VTSupDebDel (deblocking) enables the reset delay to be continuously enabled
Recommended setting
Grounded system
enabled
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Bay protection functions
Ungrounded system
disabled
GUID-09BA469C-565E-49EF-B2C0-080319525FA6 v1
ComMode (3 x
Section 5
49