Parameters - ABB RELION REB500 Technical Manual
Bay protection functions
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Also See for RELION REB500:
- Operation manual (110 pages) ,
- Applications manual (108 pages) ,
- Engineering manual (98 pages)
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Section 5
Bay protection functions
5.1.5
Parameters
Table 42: General
Parameter
ParSet 1..4
CT Neutral
Ref. Length
U input
I input
I
input,
0
I
input
0P
I O/C backup
Delay O/C backup
Time PS block
Table 43: Starting
Text
StartMode
PhaseSelMode
GndFaultMode
Table continues on next page
30
Description
Parameter for determining in which set of parameters a particular function is active.
Side of the CTs on which the star-point is formed (current direction).
Choice:
•
Bus side
•
Line side
Reactance (secondary value) to be used as reference length of the line.
Indicates the first VT input assigned to the three-phase voltages. Fixed setting
Channel 5 of the A/D module.
Indicates the first CT input assigned to the three-phase currents. Fixed setting
Channel 1 of the A/D module.
Indicates the CT input assigned to the neutral current. This is used for
•
the external acquisition of the neutral current of the line or
•
the neutral current of the parallel circuit of a double-circuit line. Fixed setting
Channel 4 of the analogue input module.
Phase current pick-up setting of the backup overcurrent unit. The function is
blocked when set to zero.
Tripping delay of the O/C backup function.
Determines the maximum blocking time of the power swing blocking function. The
power swing blocking function is blocked when set to zero.
Explanation
Choice:
•
UZ (underimpedance)
•
I > (overcurrent)
Phase preference for cross-country faults in systems with Petersen coils and
ungrounded systems:
Choice:
•
Solidly grounded
•
L1L3L2 (L1) cyclic
•
L3L1L2 (L3) cyclic
•
L1L3L2 acyclic
•
L1L2L3 acyclic
•
L3L2L1 acyclic
•
L3L1L2 acyclic
•
L2L1L3 acyclic
•
L2L3L1 acyclic
•
Directional OR
Method of detecting ground faults:
Choice:
•
I
: (I
>3I
) AND (I
0
E
0min
•
I
OR U
: (I
>3I
0
0
E
0min
•
I
(I
): (I
>3I
) AND (I
0
2
E
0min
•
I
(I
) OR U
: (I
>3I
0
2
0
E
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>0.25 I
)
E
max
) AND (I
>0.25 I
) OR (U
>3U
E
max
E
>0.23 I
)
E
2
) AND (I
>0.23 I
) OR (U
0min
E
2
E
Bay protection functions REB500
1MRK 505 406-UEN B
GUID-94E19491-6E52-44C9-813E-33C133EF4CC3 v1
)
0min
>3U
)
0min
Technical manual
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