2.6
SEL-700G Relay
Instruction Manual
Date Code 20170814
Installation
I/O Configuration
The communications card supports the following protocols:
Current/Voltage Card
Option (3 ACI/4 AVI)
MOT…x71x…(1 A phase CTs) or …x75x…(5 A phase CTs).
This card
is only supported in Slot
E
of the SEL-700GT model (refer to Table 1.1 and
Figure 2.2). It supports Y-side current inputs for three-phase CTs and Y-side
voltage inputs for three-phase (wye or delta) PTs. It also supports a
synchronism-check voltage input.
➤
Modbus RTU Slave
➤
SEL ASCII and
Compressed ASCII
➤
SEL Fast Meter
➤
SEL Fast Operate
➤
SEL Fast SER
➤
SEL Fast Message
Unsolicited Write
➤
SEL Settings File Transfer
➤
SEL M
IRRORED
B
ITS
(MBA,
MBB, MB8A, MB8B,
MBTB, MBTA)
➤
Event Messenger
➤
DNP3 Slave Level 2
➤
C37.118 (Synchrophasor
Data)
Table 2.4
Current/Voltage Inputs (3 ACI/4 AVI) Card Terminal Designations
Side-Panel
Connections Label
Terminal
Number
Description
E01,
E02
IAY, Y-side Phase A current input
E03,
E04
IBY, Y-side Phase B current input
E05,
E06
ICY, Y-side Phase C current input
E07
VS, synchronism-check voltage input
E08
NS, common connection for synchronism-check
voltage input
E09
VAY, Y-side Phase A voltage input
E10
VBY, Y-side Phase B voltage input
E11
VCY, Y-side Phase C voltage input
E12
NY, common connection for VAY, VBY, VCY
WARNING
Before working on a CT circuit, first
apply a short to the secondary
winding of the CT.
NOTE:
When the
VS-NS
voltage input
is unused in the SEL-700GT+ model
and the setting DELTAY_X := DELTA,
then the voltage input could be used
to connect an external zero-
sequence voltage. In such an
application, the setting EXT3V0_X
must also be set accordingly.
E02
I AY
E03
E04
I BY
E05
E06
I CY
E01
ACI
AVI
E08
E09
E 1 1
VS
WYE
NS
VAY
NS
VAY
VBY VBY
(COM)
VCY VCY
E 1 2
NY
COM
VS
OPEN
DELTA
E07
E10
Summary of Contents for SEL-700G Series
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