Simplex NEPTUNE - Current Transformer Installation; Current Transformers; CT Orientation; Tb-Ct

18 — Installaon
If your load bank is
equipped with Metering,
Automatic Mode or Regen-
erative Mode options, you
will have to install current
transformers on your power
cable.
• For metering mode, in-
stall the current trans-
formers on the load
bank leg of your power
system (see “Figure 13
Current Transformer
placement for Metering”
on page 19.)
• For Automatic/Regen-
erative Mode, install
the current transform-
ers on the power source
leg (see “Figure 14
Current Transform-
er placement for Auto/
Regen. Mode” on page
19.)
Orient the current trans-
formers so that the XI or HI
on each ring is facing the
power source (see Figure 11
CT Orientation.)
When the current trans-
formers are installed, con-
nect them to the load bank
by connecting the white wire
of the current transformer
on Phase A to TB-CT 1 and
the black wire to TB-CT 2.
If a second current trans-
former is installed on Phase
C, connect its white wire to
TB-CT 3 and its black wire
to TB-CT 4 (see Figure 12
TB-CT.)
Current
t
ranSformer
inStallation
The current
transformers
must be
placed and
oriented
correctly to
ensure they
accurately
detect the
current. The
rst current
transformer
must be
installed on
Phase A, and
the second
must be
installed on
Phase C.
Figure 10
Current Transformers
Figure 11
CT Orientation
Make sure the XI or HI on the
ring faces the power source.
Figure 12 TB-CT