14-2
Application Settings for SEL-311L Relays
Date Code 20010625
SEL-311L Instruction Manual
4. Disables and hides settings for:
•
Mho phase distance elements (E21P = N)
•
Mho ground distance elements (E21MG = N)
•
Quadrilateral ground distance elements (E21XG = N)
•
50Q—instantaneous/definite-time negative-sequence overcurrent elements
(E50Q = N)
•
51Q—inverse-time negative-sequence overcurrent elements (E51Q = N)
•
Out-of-step elements (EOOS = N)
•
Load-encroachment elements (ELOAD = N)
•
Switch-onto-fault (ESOTF = N)
•
Voltage elements (EVOLT = N)
•
Synchronism check elements (E25 = N)
•
Frequency elements (E81 = N)
•
Fault locator (EFLOC = N)
•
Loss-of-potential (ELOP = N)
•
Communications-assisted trip schemes (ECOMM = N)
•
Reclosing (E79 = N)
•
CCVT transient protection (ECCVT = N)
•
SEL
OGIC
Latch bits (ELAT = N)
•
Advanced settings (EADVS = N)
•
Ground directional element priority (ORDER = OFF)
5. Changes default SEL
OGIC
control equations to:
•
TR
= 67P1T + 67G1T + 51PT + 51GT + OC
•
67P1TC
= !87LPE + 87HWAL
•
67G1TC
= !87LPE + 87HWAL
•
51PTC
= !87LPE + 87HWAL
•
51GTC
= !87LPE + 87HWAL
•
T51QTC* = 87L
•
T50PTC* =
87L
•
T50GTC* =
87L
•
T50QTC* =
87L
•
ER
= /B87L2 + /50P1 + /50G1 + /51P + /51G
*
Note:
These settings are visible when T50 and T51 functions are enabled.
Summary of Contents for SEL-311L
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