Schweitzer Engineering Laboratories SEL-421-4 - Page 923

4.27
Date Code 20171006 Instruction Manual SEL-400 Series Relays
Front-Panel Operations
Front-Panel Menus and Screens
The relay displays different settings entry screens depending on the settings type.
For the
CTRW setting in Figure 4.29, the relay requires basic alphanumeric input.
Other settings can have other data input requirements. The front-panel settings
input data types are the following:
➤ Basic alphanumeric
➤ Character or string or SELOGIC control equations
➤ Setting options
For alphanumeric settings, the relay presents the character or string input screen.
Some settings have specific options; use the setting options screens to select
these options. Figure 4.30 shows examples of the settings input screens.
Figure 4.29 Example SET/SHOW Screens
SET/SHOW
PORT
GLOBAL
GROUP
ACTIVE GROUP = 3
DATE/TIME
GROUP
SELECT AN INSTANCE
SELECT A CLASS
M
1
2
3 <----ACTIVE
4
5
6
GROUP 3
SELECT A CATEGORY
Line Configuration
Relay Configuration
37 Current Different
Mho Phase Distance E
Quad Phase Distance
Phase Distance Eleme
Mho Ground Distance
Zero-Sequence Compen
Ground Distance Elem
Switch-Onto-Fault Sc
SELECT A SETTING
LINE CONFIGURATION
CTRW := 200
CTRX := 200
PTRY := 2000
VNOMY := 115
PTRZ := 2000
VNOMZ := 115
Z1MAG := 7.80
Z1ANG := 84.00
Z0MAG := 24.00
Z0ANG := 81.50
CTRW
?
CURRENT TRANSFORMER
0 1 2 3 4 5
6 7 8 9 - .
A B C D E F
G H I J K L
M N O P Q R
S T U V W X
Y Z
ACCEPT BACKSPACE