ABB RELION Series, Руководство по эксплуатации продукта

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9. External current transformer unit
Summation CT
SEMOD121170-4 v3
The external auxiliary summation current transformers are
used for the cost effective summation type differential
principle.
xx06000061.eps
IEC06000061 V1 EN-US
Figure 20. Summation CT
5
7
[2
.2
4
]
89
[3
.5
]
xx06000233.vsd
482.6 [19]
Dimension
mm [inches]
IEC06000233 V1 EN-US
Figure 21. Dimension drawing of summation current transformers
Distance between the center of the fixing holes is 465 mm [18.33].
WARNING! USE EXTREME CAUTION!
Dangerously high voltages might be present on this
equipment, especially on the plate with resistors. Do any
maintenance ONLY if the primary object protected with this
equipment is de-energized. If required by national law or
standard, enclose the plate with transformers with a
protective cover or install in a separate box.
10. Interface converter
Galvanic interface G.703 resp G.703E1
M16035-3 v5
The external galvanic data communication converter
G.703/G.703E1 makes an optical-to-galvanic conversion for
connection to a multiplexer. These units are designed for 64
kbit/s resp 2Mbit/s operation. The converter is delivered
with 19” rack mounting accessories.
xx06000245.vsd
IEC06000245 V1 EN-US
Figure 22. Galvanic Converter
11. GPS antenna
Introduction
SEMOD55674-5 v4
In order to receive GPS signals from the satellites orbiting
the earth a GPS antenna with applicable cable must be
used.
SEMOD55682-4 v4
The antenna with a console for mounting on a horizontal or
vertical flat surface or on an antenna mast. See figure
23
A suitable cable is available for ordering.
670/650 series and SAM600-IO IEC 1MRK 514 012-BEN K
Hitachi Power Grids 13
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