S
ETTINGS
S
HEET
Page
1
of 24
F
OR THE
SEL-351 R
ELAY
Date
R
ELAY
S
ETTINGS
(S
ERIAL
P
ORT
C
OMMAND
SET
AND
F
RONT
P
ANEL
)
Date Code 20001006
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 =
Neutral (IN) Current Transformer Ratio (1 - 10000)
CTRN =
Phase (VA, VB, VC; wye-connected)
or Phase-to-Phase (VAB, VBC, VCA; delta-connected)
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 {150 V voltage inputs; 5 A nom.})
(0.25 - 1275.00
W
secondary {150 V voltage inputs; 1 A nom.})
(0.10 - 510.00
W
secondary {300 V voltage inputs; 5 A nom.})
(0.50 - 2550.00
W
secondary {300 V voltage inputs; 1 A nom.})
Z1MAG =
Positive-sequence line impedance angle (40.00 - 90.00 degrees)
Z1ANG =
Zero-sequence line impedance magnitude
(0.05 - 255.00
W
secondary {150 V voltage inputs; 5 A nom.})
(0.25 - 1275.00
W
secondary {150 V voltage inputs; 1 A nom.})
(0.10 - 510.00
W
secondary {300 V voltage inputs; 5 A nom.})
(0.50 - 2550.00
W
secondary {300 V voltage inputs; 1 A nom.})
Z0MAG =
Zero-sequence line impedance angle (40.00 - 90.00 degrees)
Z0ANG =
Zero-sequence source impedance magnitude (delta-connected voltages)
(0.05 - 255.00
Ω
secondary {5 A nom.},
0.25 - 1275.00
Ω
secondary {1 A nom.})
Z0SMAG =
Zero-sequence source impedance angle (delta-connected voltages)
(0.00 - 90.00 degrees)
Z0SANG =
Line length (0.10 - 999.00, unitless)
LL =
Instantaneous/Definite-Time Overcurrent Enable Settings
Phase element levels (N, 1 - 6) (see Figures 3.1, 3.2, 3.3, and 3.7)
E50P =
Neutral ground element levels - channel IN (N, 1 - 6)
(see Figures 3.8 and 3.9)
E50N =
Residual ground element levels (N, 1 - 6) (see Figures 3.10 and 3.11)
E50G =
Negative-sequence element levels (N, 1 - 6) (see Figures 3.12 and 3.13)
E50Q =
Summary of Contents for SEL-351
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