Nautel NX100, Руководство по установке

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NX100 Installation Manual Connecting transformer taps/load wiring
Issue 3.2 2017-03-31 Page 3-3
3. Locate or obtain the wiring to make the four-wire electrical connections between the
transformer and the main cabinet. This wiring may be supplied by Nautel and packed in the
main cabinet or packed in the ancillary crate. If it is not provided by Nautel, it must be
obtained by the user. In this case, select the wiring based on the recommendations in the
Electrical Requirements section of the
NX100 Pre-installation Manual .
4. Route the larger wires (for each of the three phases) in Step 3 from the back of the
transformer to the top of the main cabinet, down through its ac cable duct, to the ac
terminals (see
Figure 3.3 on page 3-4 ). Connect the three-phase wires between the
X1, X2
and
X3
terminals on the power transformer (see Figure 3.1 on page 3-2 ) and the
AC1
,
AC2
and
AC3
terminals in the main cabinet, respectively.
5. Remove the lexan cover over the ac terminals (see Figure 3.3 on page 3-4 ).
6. Route the smaller wire (for neutral) in Step 3 from the back of the transformer cabinet to the
top of the main cabinet, down through the ac cable duct, to the standoff terminal labeled
Xo
(see Figure 3.3 on page 3-4 ). Connect this wire between the
X0
terminal of the power
transformer (see Figure 3.1 on page 3-2 ) and the
X0
terminal in the main cabinet.
7. Re-install the lexan cover removed in Step 5 .
8. Leave the main cabinet’s back door open to allow for station reference ground connection in
Section 4, “Connecting the station reference ground” on page 4-1 .
9. Leave the transformer cabinet’s back cover off to allow for ac power connection in Section 5,
“Connecting ac power” on page 5-1 .
WARNING: DO NOT connect the X0 terminal of the power transformer
to ground. Connect as detailed in Step 6 .