Schweitzer Engineering Laboratories SEL-311C - Page 557

14.41
Date Code 20060320 Instruction Manual SEL-311C Relay
Application Settings for SEL-221 Series Relays
SEL-221C to SEL-311C Settings Conversion Guide
Z0MAG
Z0ANG
LL = LL Settings Sheets for the
SEL-311C Relay
APP None
EFLOC = LOCAT Settings Sheets for the
SEL-311C Relay
Section 2—Fault Location
ELOP
N
Y
= LOPE
= N
= Y
Loss-of-Potential Logic on
page 4.1
Section 5—Loss-of-Potential
(LOP) Enable Setting (LOPE)
Z1P Mho Phase Distance Elements
on page 3.1
Section 2—Distance Elements
Z2P NOTE: Z1MAG is an SEL-311C
setting.
Z3P
where:
Z3PD = Z3DP Zone Time Delay Elements on
page 3.20
Section 5—Zone 3 Distance Ele-
ment Timer
50P1P = 50H/CTR Switch-Onto-Fault Trip Logic
on page 5.7
Section 5—High Set Phase Over-
current Element Setting
50P2P = 50M/CTR Loss-of-Potential Logic on
page 4.1
Section 5—Medium Set Phase
Overcurrent Setting (50M)
50G1P = 50N1P/CTR Instantaneous/Definite-Time
Overcurrent Elements on
page 3.26
Section 5—Residual Overcurrent
Setting (50N1P)
50G2P = 50N2P/CTR Section 5—Residual Overcurrent
Setting (50N2P)
50G3P = 50N3P/CTR Section 5—Residual Overcurrent
Setting (50N3P)
67G2D = Z2DG Residual Ground Instantaneous/
Definite-Time Overcurrent Ele-
ments on page 3.28
Section 5—Choice of Zones 1, 2,
and 3 Residual Overcurrent Pickup
Settings
67G3D = Z3DG
51PP = 51PP/CTR Phase Time-Overcurrent Ele-
ments on page 3.33
Section 5—Phase Time-Overcur-
rent Settings (51PP, 51PC,
51PTD)
Table 14.24 SEL-311C Settings Calculated From SEL-221C Settings (Sheet 2 of 4)
SEL-311C
Setting
a
Calculated From SEL-221C Settings
SEL-311C Instruction
Manual Section
SEL-221C Instruction
Manual Section
R0
2
X0
2
+()=
CTR
PTR
------------
•
Arc tan
X0
R0
-------
= (degrees)
Z1%
100
-----------
Z1MAG• =
Z2%
100
-----------
Z1MAG• =
Z3%
100
-----------
Z1MAG• =
Z1MAG R1
2
X1
2
+()=
CTR
PTR
------------
•