Schweitzer Engineering Laboratories SEL-787 - Page 214

SET.2
of 68
SEL-787 Settings Sheets
Group Settings (SET Command)
SEL-787 Relay Instruction Manual Date Code 20081022
Date _______________
Group______________
Differential
XFMR DIFF ENABLE (Y, N) (All Differential settings below are
hidden if E87 := N)
E87 :=
Note: TAP1 and TAP2 are autoset by relay if MVA setting is not OFF.
WDG1 CURR TAP (0.1–6.2 A [1 A nom.],
0.5–31.0 A [5 A nom.])
TAP1 :=
WDG2 CURR TAP (0.1–6.2 A [1 A nom.],
0.5–31.0 A [5 A nom.])
TAP2 :=
OPERATE CURR LVL (0.10–1.00 TAP)
O87P :=
DIFF CURR AL LVL (OFF, 0.05–1.00 TAP)
87AP :=
DIFF CURR AL DLY (1.0–120.0 sec.)
(Hidden if 87AP := OFF)
87AD :=
RESTRAINT SLOPE1 (5–90 %)
SLP1 :=
RESTRAINT SLOPE2 (5–90 %%)
SLP2 :=
RES SLOPE1 LIMIT (1.0–20.0 TAP)
IRS1 :=
UNRES CURR LVL (1.0–20.0 TAP)
U87P :=
2ND HARM BLOCK (OFF, 5–100 %)
PCT2 :=
4TH HARM BLOCK (OFF, 5–100 %)
PCT4 :=
5TH HARM BLOCK (OFF, 5–100 %)
PCT5 :=
5TH HARM AL LVL (OFF, 0.02–3.20 TAP)
TH5P :=
5TH HARM AL DLY (0.0–120.0 s)
(Hidden if TH5P := OFF) TH5D :=
HARMONIC RESTRNT (Y, N)
HRSTR :=
HARMONIC BLOCK (Y, N)
HBLK :=
Restricted Earth Fault
(Hidden if neutral CT is not included.)
POL QTY FROM WDG (OFF, 1, 2, 12) REF1POL :=
REF1 TRQ CTRL (SEL
OGIC) REF1TC :=
REF1 CURR LEVEL (0.05–3.00 pu)
50REF1P :=
Winding 1 Maximum Phase Overcurrent
PHASE IOC LEVEL (OFF, 0.50–96.00 A [5 A nom.],
0.10–19.20 A [1 A nom.]
50P11P :=
PHASE IOC DELAY (0.00–5.00 sec)
(Hidden if 50P11P := OFF)
50P11D :=
PH IOC TRQCTRL (SEL
OGIC) (Hidden if 50P11P := OFF) 50P11TC :=
PHASE IOC LEVEL (OFF, 0.50–96.00 A [5 A nom.],
0.10–19.20 A [1 A nom.])
50P12P :=
PHASE IOC DELAY (0.00–5.00 sec)
(Hidden if 50P12P := OFF) 50P12D :=
PH IOC TRQCTRL (SEL
OGIC) (Hidden if 50P12P := OFF) 50P12TC :=
PHASE IOC LEVEL (OFF, 0.50–96.00 A [5 A nom.],
0.10–19.20 A [1 A nom.])
50P13P :=