Powerware 9315 - Installing T3; Reconnecting T3 Power Wiring

5-- 10
Powerware 9315 (500 kVA--750 kVA) T1 and T3 Installation Addendum
164201244--001 REV. A 011500
5.2.2 Installing T3
To install T3, perform the following procedure:
CAUTION:
In the step 1, ensure that no hardware falls into the transformer. As a
precaution, cover the top of the transformer windings with a cloth or
cardboard. Any hardware falling i nto the transformer must be
remove d.
1. If not already removed, disconnect and remove two jumper wires between
terminal lugs Y01 and Y02, and Y02 and Y03 (see figure 5---7).
2. Remove eight transformer mounting bolts and washers securing transformer to
cabinet base (see figure 5---3). Retain hardware.
3. Po sition the transformer power cables, so that the cables will not interfere with
the installation of the transformer into the cabinet.
4. Remove bolts securing transformer to the pallet.
CAUTION:
Lift only with forklift or transformer damage may occur.
5. Adjust forks on fork lift to correspond to the spacing between the transformer
mounting rails.
NOTE: In step 6, lift transformer with the terminal side facing away from the fork lift.
6. Slowly move fork lift into position under transformer and lift to clear pallet.
7. Move transformer into position at the rear of the input/rectifier cabinet.
8. Carefully lift transformer just enough to clear cabinet base.
9. Move forklift forward, installing transformer into cabinet. Ensure top of
transformer does not come in contact with the horizontal cabinet brace.
10. Move transfor mer over mounting holes in cabinet base and lower transformer
onto base.
11. Secure transformer with eight mounting bolts (see figure 5---3).
5.2.3 Reconnecting T3 Power Wiring
To reconnect T3 power wiring, perform the following procedure:
1. Connect tr ansformer ground wire from transformer to cabinet base (see figure
5 --- 7 ) .
CAUTION:
In the following steps, ensure that no hardware falls into the
transformer. As a precaution, cover the top of the transformer
windings with a cloth or cardboard. Any hardware fa lling into the
transformer must be removed.
2. Connect jumper wires to transformer lugs using the information contained in
table 5---1. Mount one wire to front of lug and one to back of lug, using two flat
washers (one on back and one on front of bolt), one belleville washer, and one
nut. Tighten to the specified torque. See figure 5---7 for terminal lug locations
and Drawing 164201244---001---2 for wiring diagram.