Schweitzer Engineering Laboratories SEL-700G Series, Instruction Manual

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SEL-700G Relay Instruction Manual Date Code 20170814
Protection and Logic Functions
Front-Panel Settings (SET F Command)
temperatures, we install an analog card in relay Slot
C
, and we connect
4–20 mA transducers inputs to analog inputs AI301 (hot-spot temperature),
AI302 (oil temperature), and AI303 (winding temperature).
First, enable enough display points for the analog measurements (for example,
EDP = 5). Figure 4.158 shows the settings to add the three transducer
measurements. (Use the > character to move to the next settings category).
Rotating Display
With more than two display points enabled, the relay scrolls through all
enabled display points, thereby forming a rotating display, such as that shown
in Figure 4.159.
Figure 4.159 Rotating Display
To change the temperature units to more descriptive engineering units, enter
your units with the AIxxxEU (for example, AI302EU) setting.
Local Bits
Local bits are variables (LBnn, where nn means 01 through 32) that are
controlled from front-panel pushbuttons. Use local bits to replace traditional
panel switches. The states of the local bits are stored in nonvolatile memory
every second. When power to the device is restored, the local bits will go back
to their states after the device initialization. Each local bit requires three of the
=>> SET F TERSE <Enter>
Front Panel
General Settings
DISPLY PTS ENABL (N,1-32) EDP := 4 ?
5 <Enter>
LOCAL BITS ENABL (N,1-32) ELB := 1 ? > <Enter>
Target LED Set
TRIP LATCH T_LED (Y,N) T01LEDL := Y ?
> <Enter>
Display Point Settings (maximum 60 characters):
(Boolean): Relay Word Bit Name, "Alias", "Set String", "Clear String"
(Analog) : Analog Quantity Name, "User Text and Formatting"
DISPLAY POINT DP01 (60 characters)
DP01 := IN101,"TRFR 1 HV BRKR:",CLOSED,OPEN
?
<
Enter>
DISPLAY POINT DP02 (60 characters)
DP02 := IN102,"TRFR 1 LV BRKR:",CLOSED,OPEN
?
<Enter>
DISPLAY POINT DP03 (60 characters)
DP03 := IAV, "I MOTOR {6} A"
?
AI301,"HOT SPOT TEMP" <Enter>
DISPLAY POINT DP04 (60 characters)
DP04 := TCUSTR, "Stator TCU {3} %"
?
AI302,"OIL TEMPERATURE" <Enter>
DISPLAY POINT DP05 (60 characters)
DP05 := IA_MAG, "IA {7.1} A pri"
?
AI303,"WINDING TEMP" <Enter>
Save changes (Y,N)? Y <Enter>
Settings Saved
=>>
Figure 4.158 Adding Temperature Measurement Display Points
TRFR 1 HV BRKR:=
TRFR 1 LV BRKR:=
Screen 1
HOT SPOT TEMP
xxx.xx degrees C
Screen 2
OIL TEMPERATURE
0.031 mA
Screen 3
WINDING TEMP
0.037 mA
Screen 4
TRFR 1 HV BRKR:=
TRFR 1 LV BRKR:=
Screen 1