Schweitzer Engineering Laboratories SEL-311C - Page 558

14.42
SEL-311C Relay Instruction Manual Date Code 20060320
Application Settings for SEL-221 Series Relays
SEL-221C to SEL-311C Settings Conversion Guide
51PC
U1
b
U2
U3
U4
= 51PC
= 1
= 2
= 3
= 4
51TD = 51PTD
51GP = 51NP/CTR Residual Ground Time-Overcur-
rent Element on page 3.36
Section 5—Residual Ground Time-
Overcurrent Settings (51PP, 51PC,
51PTD, 51NTC)
51GC
U1
b
U2
U3
U4
= 51NC
= 1
= 2
= 3
= 4
51GTD = 51NTD
51GTC
(= 1
(= 32GF
= 51NTC
= N)
= Y)
DIR3 = ZONE 3 Directional Control Settings on
page 4.21
Section 5—Zone 3 Direction Set-
ting
ORDER Q
V
I
= 32QE
= 32VE
= 32IE
Directional Control for Ground
Distance and Residual Ground
Overcurrent Elements on
page 4.9
Section 2—Functional Descrip-
tion, Directional Elements
27P Voltage Elements on page 3.40 Section 2—Reclosing Relay
59P
27PP
59PP
79OI1 = 79OI1 Section 6: Close and Reclose
Logic
Section 2—Reclosing Relay
79OI2 = 79O12
79O13 = 79O13
79RSD None (SEL-221C setting 79RS serves a
slightly different purpose.)
Reclosing Relay Timer Settings
on page 6.14
79RSLD None
52AEND = 52BT (Pickup) Switch-Onto-Fault Trip Logic
on page 5.7
Section 5—52BT Setting (52BT)
and Switch-Onto-Fault Protection
SOTFD = 52BT (Dropout)
TDURD = TDUR Unlatch Trip on page 5.4 Section 5—Trip Duration Timer
(TDUR)
Table 14.24 SEL-311C Settings Calculated From SEL-221C Settings (Sheet 3 of 4)
SEL-311C
Setting
a
Calculated From SEL-221C Settings
SEL-311C Instruction
Manual Section
SEL-221C Instruction
Manual Section
59N 1000• ()
3PTR• ()
----------------------------------=
47 PXD 1000• ()
3PTR• ()
------------------------------------------=
47PXD
1000
PTR
------------
• =
47PXL
1000
PTR
------------
• =