Startco Engineering Ltd. Page 30
FPU-16 Feeder Protection Unit Rev. 0
Pub. FPU-16-M, November, 1997 Downloaded from the Internet, see Disclaimer.
4.5.2 RESIDUAL EARTH-FAULT CONNECTION
The residual earth-fault connection is shown in Figure 12a. Dotted lines indicate
1-A-CT connections. Use identical phase CT's for this connection.
4.5.3 TWO-CT CONNECTIONS
The two-CT connections are shown in Figures 12b and 12c. Dotted lines
indicate 1-A-CT connections. Two-CT connections are not recommended and
are used only in retrofit applications where the third phase CT is not available.
4.6 CABLE RESTRAINT
All conductors should be restrained within 100 mm (4") of the terminal blocks as
shown in Figure 13. Three sizes of adjustable "P" clips are provided for this
purpose. For surface-mount units, restrain the conductors by fastening the "P"
clips to the mounting surface. For panel-mount units, secure the "P" clips to the
FPU-16 rear panel. Secure cables to the ICT-2 using the cable-tie eyelets and
the cable ties provided.
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