Schweitzer Engineering Laboratories SEL-311A, Instruction Manual

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S
ETTINGS
S
HEET Page 1
OF
19
FOR THE
SEL-311A R
ELAY Date
R
ELAY
S
ETTINGS
(S
ERIAL
P
ORT
C
OMMAND
SET
AND
F
RONT
P
ANEL
)
Date Code 20011205
Identifier Labels (See
Settings Explanations
in
Section 9
)
Relay Identifier (30 characters) RID =
Terminal Identifier (30 characters) TID =
Current and Potential Transformer Ratios (See
Settings Explanations
in
Section 9
)
Phase (IA, IB, IC) Current Transformer Ratio (1–6000) CTR =
Polarizing (IPOL) Current Transformer Ratio (1–6000) CTRP =
Phase (VA, VB, VC) Potential Transformer Ratio (1.00–10000.00) PTR =
Synchronism Voltage (VS) Potential Transformer Ratio (1.00–10000.00) PTRS =
Line Settings (See Settings Explanations in Section 9 )
Positive-sequence line impedance magnitude
(0.05–255.00
W
secondary {5 A nom.};
0.25–1275.00
W
secondary {1 A nom.})
Z1MAG =
Positive-sequence line impedance angle (5.00–90.00 degrees) Z1ANG =
Zero-sequence line impedance magnitude
(0.05–255.00
W
secondary {5 A nom.};
(0.25–1275.00
W
secondary {1 A nom.})
Z0MAG =
Zero-sequence line impedance angle (5.00–90.00 degrees) Z0ANG =
Line length (0.10–999.00, unitless) LL =
Application Settings (See
Section 14
)
Application (311A, 2PG10) APP =
Distance Settings
Mho phase distance element zones (N, 1, 2, 1C, 2C) (see Figure 3.4 and
Figure 3.5) E21P =
Mho ground distance element zones (N, 1, 2) (see Figure 3.6 and Figure 3.7) E21MG =
Instantaneous/Definite-Time Overcurrent Enable Settings
Phase element levels (Y, N) (see Figure 3.10) E50P =
Residual ground element levels (Y, N) (see Figure 3.13) E50G =
Time-Overcurrent Enable Settings
Phase element (Y, N) (see Figure 3.14) E51P =
Residual ground element (Y, N) (see Figure 3.15) E51G=