2.8
SEL-700G Relay
Instruction Manual
Date Code 20170814
Installation
I/O Configuration
Voltage Card Option
(2 AVI)
MOT…x74x….
This card is only supported in Slot
E
of the SEL-700G0+
model (refer to Table 1.1 and Figure 2.2). It supports a synchronism-check
voltage input VS and neutral voltage input VN.
Current/Voltage Card
Option (4 ACI/3 AVI)
MOT…x81x… (1 A phase, 1 A neutral CTs); or …x85x… (5 A phase,
5 A neutral CTs); or …x82x… (1 A phase, 5 A neutral CTs); or
…x86x… (5 A phase, 1 A neutral CTs).
This card is supported in Slot
Z
of the SEL-700G0, SEL-700G1, and the SEL-700GT+ models (refer to
Table 1.1 and Figure 2.2). It supports X-side current inputs for three-phase
CTs, neutral current CTs, and X-side voltage inputs for three-phase (wye or
delta) PTs.
Table 2.7
Voltage Inputs (2 AVI) Card Terminal Designations
Side-Panel
Connections Label
Terminal
Number
Description
E07
VS, synchronism-check voltage input
E08
NS, common connection for synchronism-check
voltage input
E11
VN, neutral voltage input
E12
NN, common connection for neutral voltage input
AVI
E08
E09
E 1 1
VS
NS
N/C
N/C
VN
E 1 2
NN
E07
E10
Table 2.8
Current/Voltage Inputs (4 ACI/3 AVI) Card Terminal Designations
Side-Panel
Connections Label
Terminal
Number
Description
Z01, Z02
IAX, X-side Phase A current input
Z03, Z04
IBX, X-side Phase B current input
Z05, Z06
ICX, X-side Phase C current input
Z07, Z08
IN, neutral current input
Z09
VAX, X-side Phase A voltage input
Z10
VBX, X-side Phase B voltage input
Z11
VCX, X-side Phase C voltage input
Z12
NX, common connection for VAX, VBX, VCX
WARNING
Before working on a CT circuit, first
apply a short to the secondary
winding of the CT.
Z03
Z04
I BX
Z05
Z06
I CX
Z07
Z08
I N
Z02
I A X
Z01
ACI
AVI
Z09
Z 1 1
WYE
VAX VAX
VBX VBX
(COM)
VCX VCX
Z 1 2
NX
COM
OPEN
DELTA
Z10
Содержание SEL-700G Series
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