Sel 751A - Overvoltage; Synchronism Check

Date _______________
Date Code 20100129 Instruction Manual SEL-751A Relay
SET.9
of 68
SEL-751A Settings Sheets
Group Settings (SET Command)
UVS LEVEL 2 (OFF, 2.00–300.00 V) 27S2P :=
UVS DELAY 2 (0.0–120.0 sec)
(Hidden if 27S2P := OFF) 27S2D :=
Overvoltage
(All or some of the settings below are hidden if appropriate Voltage Card Option not
included, see Table 1.1)
OV TRIP1 LEVEL (OFF, 0.02–1.20 xVnm) 59P1P :=
OV TRIP1 DELAY (0.0–120.0 sec)
(Hidden if 59P1P := OFF) 59P1D :=
OV TRIP2 LEVEL (OFF, 0.02–1.20 xVnm)
59P2P :=
OV TRIP2 DELAY (0.0–120.0 sec)
(Hidden if 59P2P := OFF) 59P2D :=
ZS OV TRIP1 LVL (OFF, 0.02–1.20 xVnm)
(Hidden if
DELTA Y := DELTA)
59G1P :=
ZS OV TRIP1 DLY (0.0–120.0 sec) (
Hidden if 59G1P := OFF) 59G1D :=
ZS OV TRIP2 LVL (OFF, 0.02–1.20 xVnm)
(Hidden if
DELTA Y := DELTA)
59G2P :=
ZS OV TRIP2 DLY (0.0–120.0 sec) (
Hidden if 59G2P := OFF) 59G2D :=
NSQ OV TRIP1 LVL (OFF, 0.02–1.20 xVnm)
59Q1P :=
NSQ OV TRIP1 DLY (0.0–120.0 sec) (
Hidden if 59Q1P := OFF) 59Q1D :=
NSQ OV TRIP2 LVL (OFF, 0.02–1.20 xVnm)
59Q2P :=
NSQ OV TRIP2 DLY (0.0–120.0 sec) (
Hidden if 59Q2P := OFF) 59Q2D :=
OVS LEVEL 1 (OFF, 2.00–300.00 V)
59S1P :=
OVS DELAY 1 (0.0–120.0 sec)
(Hidden if 59S1P := OFF) 59S1D :=
OVS LEVEL 2 (OFF, 2.00–300.00 V)
59S2P :=
OVS DELAY 2 (0.0–120.0 sec)
(Hidden if 59S2P := OFF) 59S2D :=
Synchronism Check
(Hidden if Voltage Card Option With VS Input Not Included)
SYNCH CHECK (Y, N) E25 :=
VS WINDOW LOW (0.00–300.00 V)
(Hidden if E25 := N) 25VLO :=
VS WINDOW HIGH (0.00–300.00 V)
(Hidden if E25 := N) 25VHI :=
V RATIO COR FAC (0.50–2.00)
25RCF :=
MAX SLIP FREQUENCY (0.05–0.50 Hz)
(Hidden if E25 := N) 25SF :=
MAX ANGLE 1 (0–80 deg)
(Hidden if E25 := N) 25ANG1 :=
MAX ANGLE 2 (0–80 deg)
(Hidden if E25 := N) 25ANG2 :=
SYNCPH PHASE
(VA, VB, VC, 0, 30, 60, 90, 120, 150, 180, 210,
240, 270, 300, 330 deg lag VA)
(Hidden if E25 := N)
(Hidden if DELTA_Y := DELTA)
SYNCPH :=