Sel 751A - Negative-Sequence Overcurrent; Phase Time Overcurrent

Date _______________
Date Code 20100129 Instruction Manual SEL-751A Relay
SET.3
of 68
SEL-751A Settings Sheets
Group Settings (SET Command)
RES OC TRIP LVL (OFF, 0.50–100.00 A {5 A nom.},
0.10–20.00 A {1 A nom.})
50G3P :=
RES OC TRIP DLY (0.00–5.00 sec)
(Hidden if 50G3P := OFF) 50G3D :=
RES OC TRQ CON (SEL
OGIC) (Hidden if 50G3P := OFF) 50G3TC :=
RES OC TRIP LVL (OFF, 0.50–100.00 A {5 A nom.},
0.10–20.00 A {1 A nom.})
50G4P :=
RES OC TRIP DLY (0.00–5.00 sec)
(Hidden if 50G4P := OFF) 50G4D :=
RES OC TRQ CON (SEL
OGIC) (Hidden if 50G4P := OFF) 50G4TC :=
Negative-Sequence Overcurrent
NSEQ OC TRIP LVL (OFF, 0.50–100.00 A {5 A nom.},
0.10–20.00 A {1 A nom.})
50Q1P :=
NSEQ OC TRIP DLY (0.1–120.0 sec)
(Hidden if 50Q1P := OFF) 50Q1D :=
NSEQ OC TRQ CON (SEL
OGIC) (Hidden if 50Q1P := OFF) 50Q1TC :=
NSEQ OC TRIP LVL (OFF, 0.50–100.00 A {5 A nom.},
0.10–20.00 A {1 A nom.})
50Q2P :=
NSEQ OC TRIP DLY (0.1–120.0 sec)
(Hidden if 50Q2P := OFF) 50Q2D :=
NSEQ OC TRQ CON (SEL
OGIC) (Hidden if 50Q2P := OFF) 50Q2TC :=
NSEQ OC TRIP LVL (OFF, 0.50–100.00 A {5 A nom.},
0.10–20.00 A {1 A nom.})
50Q3P :=
NSEQ OC TRIP DLY (0.1–120.0 sec)
(Hidden if 50Q3P := OFF) 50Q3D :=
NSEQ OC TRQ CON (SEL
OGIC) (Hidden if 50Q3P := OFF) 50Q3TC :=
NSEQ OC TRIP LVL (OFF, 0.50–100.00 A {5 A nom.},
0.10–20.00 A {1 A nom.})
50Q4P :=
NSEQ OC TRIP DLY (0.1–120.0 sec)
(Hidden if 50Q4P := OFF) 50Q4D :=
NSEQ OC TRQ CON (SEL
OGIC) (Hidden if 50Q4P := OFF) 50Q4TC :=
Phase Time Overcurrent
TOC TRIP LVL (OFF, 0.50–16.00 A {5 A nom.},
0.10–3.20 A {1 A nom.})
51AP :=
TOC CURVE SEL (U1, U2, U3, U4, U5, C1, C2, C3, C4, C5)
(Hidden if 51AP := OFF)
51AC :=
TOC TIME DIAL (0.50–15.00 {if 51_C := U_}, 0.05–1.00 {if
51_C := C_})
(Hidden if 51AP := OFF)
51ATD :=
EM RESET DELAY (Y, N)
(Hidden if 51AP := OFF) 51ARS :=
CONST TIME ADDER (0.00–1.00 sec)
(Hidden if 51AP := OFF)
51ACT :=
MIN RESPONSE TIM (0.00–1.00 sec)
(Hidden if 51AP := OFF) 51AMR :=
TOC TRQ CONTROL (SEL
OGIC) (Hidden if 51AP := OFF) 51ATC :=
TOC TRIP LVL (OFF, 0.50–16.00 A {5 A nom.},
0.10–3.20 A {1 A nom.})
51BP :=