Schweitzer Engineering Laboratories SEL-311B, Инструкция по эксплуатации

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S
ETTINGS
S
HEET Page 6
OF
22
FOR THE
SEL-311B R
ELAY Date
R
ELAY
S
ETTINGS
(S
ERIAL
P
ORT
C
OMMAND
SET
AND
F
RONT
P
ANEL
)
Date Code 20011205
Negative-Sequence Time-Overcurrent Element (See Figure 3.20)*
(Make the following settings if preceding enable setting E51Q = Y.)
Pickup (OFF, 0.50–16.00 A secondary {5 A nom.};
0.10–3.20 A secondary {1 A nom.})
51QP =
Curve (U1–U5, C1–C5) (see Figures 9.1 through 9.10) 51QC =
Time Dial (0.50–15.00 for curves U1–U5; 0.05–1.00 for curves C1–C5) 51QTD =
Electromechanical Reset (Y, N) 51QRS =
* IMPORTANT : See Appendix F for information on setting negative-sequence overcurrent
elements.
Load-Encroachment Elements (See Figure 4.3)
(Make the following settings if preceding enable setting ELOAD = Y.)
Forward load impedance (0.05–64.00
W
secondary {5 A nom.};
0.25 -320.00
W
secondary {1 A nom.})
ZLF =
Reverse load impedance (0.05–64.00
W
secondary {5 A nom.};
0.25 -320.00
W
secondary {1 A nom.})
ZLR =
Positive forward load angle (-90.00
°
to +90.00
°
)
PLAF =
Negative forward load angle (-90.00
°
to +90.00
°
)
NLAF =
Positive reverse load angle (+90.00
°
to +270.00
°
)
PLAR =
Negative reverse load angle (+90.00
°
to +270.00
°
)
NLAR =
Zone/Level 3 Directional Control
Zone/Level 3 direction: Forward, Reverse (F, R) DIR3 =
Directional Elements (See
Directional Control Settings
in
Section 4
)
(Make setting ORDER if preceding enable setting E32 = Y or AUTO.)
Ground directional element priority: combination of Q, V, or I
ORDER =
(Make settings Z2F, Z2R, 50QFP, 50QRP, a2, and k2 if preceding enable setting E32 = Y.
If E32 = AUTO, these settings are made automatically.)
Forward directional Z2 threshold (-64.00–64.00
W
secondary {5 A nom.};
-320.00–320.00
W
secondary {1 A nom.})
Z2F =
Reverse directional Z2 threshold (-64.00–64.00
W
secondary {5 A nom.};
-320.00–320.00
W
secondary {1 A nom.})
Z2R =
Forward directional 3I2 pickup (0.25–5.00 A secondary {5 A nom.};
0.05–1.00 A secondary {1 A nom.}) 50QFP =
Reverse directional 3I2 pickup (0.25–5.00 A secondary {5 A nom.};
0.05–1.00 A secondary {1 A nom.}) 50QRP =
Positive-sequence current restraint factor, I2/I1 (0.02–0.50, unitless) a2 =
Zero-sequence current restraint factor, I2/I0 (0.10–1.20, unitless) k2 =