14-22
Application Settings for SEL-311L Relays
Date Code 20010625
SEL-311L Instruction Manual
5. Hides settings for:
•
Directional control (E32 = AUTO)
•
Switch-onto-fault (ESOTF = Y)
•
Fault locator (EFLOC = Y)
•
Demand metering (EDEM = THM)
•
Phase-mho and ground-mho overcurrent fault detectors
-
(50PPn = 0.5), (50Ln = 0.5), (50GZn = 0.5), (5 A nominal) (n = 1, 2, 3)
-
(50PPn = 0.1), (50Ln = 0.1), (50GZn = 0.1), (1 A nominal)
6. Disables and hides settings for:
•
Quadrilateral ground distance elements (E21XG = N)
•
50Q—instantaneous/definite-time negative-sequence overcurrent elements
(E50Q = N)
•
51P—inverse-time phase-overcurrent element (E51P = N)
•
51Q—inverse-time negative-sequence overcurrent elements (E51Q = N)
•
Out-of-step elements (EOOS = N)
•
Load-encroachment elements (ELOAD = N)
•
Voltage elements (EVOLT = N)
•
Synchronism check elements (E25 = N)
•
Frequency elements (E81 = N)
•
Communications-assisted trip schemes (ECOMM = N)
•
Advanced settings (EADVS = N)
7. Automatically
calculates:
•
Directional settings. See
Settings Made Automatically
in
Section 4: Loss-of-
Potential, CCVT Transient Detection, Load-Encroachment, and Directional
Element Logic
.
•
Zero-sequence compensation factors (k0M1, k0A1, k0M, k0A) as
(
)
ANG
1
Z
MAG
1
Z
•
3
ANG
1
Z
MAG
1
Z
ANG
0
Z
MAG
0
Z
A
0
k
M
0
k
1
A
0
k
1
M
0
k
∠
∠
−
∠
=
∠
=
∠
8. Changes default SEL
OGIC
control equations to:
•
TR
= M1P + Z1G + M2PT + Z2GT + 67G1T + 51GT + OC
•
51GTC =
32GF
•
T51PTC** =
87L
•
T51GTC** =
87L
•
T51QTC** =
87L
Summary of Contents for SEL-311L
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