Sel 751A - SEL-751 A Settings Sheets; Identifier; Maximum Phase Overcurrent

Date Code 20100129 Instruction Manual SEL-751A Relay
Date _______________ SET.1
of 68
SEL-751A Settings Sheets
Group Settings (SET Command)
SEL-751A Settings Sheets
Instruct ion Manual
These settings sheets include the definition and input range for each setting in the relay. You can access the
settings from the relay front panel and the serial ports. See Section 4: Protection and Logic Functions for
detailed descriptions of the settings.
➤ Some settings require an optional module. (Refer to SEL-751A Model Option Table, Table 1.1, and
notes with the settings below for details.)
➤ Some of the settings ranges may be more restrictive than shown, because of settings interdependency
checks performed when new settings are saved (see Setting Entry Error Messages on page 6.5).
➤ The settings are not case sensitive.
Group Settings (SET Command)
Identifier
UNIT ID LINE 1 (16 Characters) RID :=
UNIT ID LINE 2 (16 Characters)
TID :=
Configuration
PHASE CT RATIO (1–5000) CTR :=
NEUTRAL CT RATIO (1–5000)
CTRN :=
PHASE PT RATIO (1.00–10000.00)
(Hidden if voltages not included)
PTR :=
SYNCV PT RATIO (1.00–10000.00)
(
Hidden if sync voltage not included)
PTRS :=
XFMR CONNECTION (WYE, DELTA)
(Hidden if voltages not included)
DELTA_Y :=
LINE VOLTAGE (1 00–250 {if DELTA_Y := DELTA},
100–440 {if DELTA_Y := WYE})
(Hidden if voltages not included)
VNOM :=
SINGLE V INPUT
(Y, N) (Hidden if voltages not included) SINGLEV :=
Maximum Phase Overcurrent
MAXP OC TRIP LVL (OFF, 0.50–100.00 A {5 A nom.},
0.10–20.00 A {1 A nom.})
50P1P :=
MAXP OC TRIP DLY (0.00–5.00 sec)
(Hidden if 50P1P := OFF) 50P1D :=
MAXP OC TRQ CON (SEL
OGIC) (Hidden if 50P1P := OFF) 50P1TC :=
MAXP OC TRIP LVL (OFF, 0.50–100.00 A {5 A nom.},
0.10–20.00 A {1 A nom.})
50P2P :=
MAXP OC TRIP DLY (0.00–5.00 sec)
(Hidden if 50P2P := OFF) 50P2D :=
MAXP OC TRQ CON (SEL
OGIC) (Hidden if 50P2P := OFF) 50P2TC :=