Lifting Procedures (continued)
FIGURE 6
For symmetrical loads only (i.e. center of gravity of the unit
is centered between lifting points)
*Eye
Center 33'
4'
5'
10"
82° 84° 85° 86° 87° 87° 87° 88°
12"
80° 83° 84° 85° 86° 86° 87° 87°
14"
-
82° 83° 84° 85° 86° 86° 87°
16"
-
80° 82° 84° 85° 85° 86° 86°
18"
-
-
81° 83° 84° 85° 85° 86°
20"
-
-
80° 82° 83° 84° 85° 85°
22"
-
-
-
24"
-
-
-
26"
-
-
-
28"
-
-
-
30"
-
-
-
32"
-
-
-
34"
-
-
-
36"
-
-
-
*Note: Distance between lifting eyes on front and
rear frames
TABLE 1
Installation, Operation, and Maintenance Guide - Cast Resin Transformers
Chain Length (ft)
6'
7'
8'
9'
10''
81° 82° 83° 84° 85°
80° 81° 82° 84° 84°
80° 81° 82° 83° 84°
-
80° 82° 83° 83°
-
80° 81° 82° 83°
-
-
80° 81° 82°
-
-
80° 81° 82°
-
-
-
80° 81°
5. Ensure that the sling angle is greater than 80 degrees (see
figure 6 & table 1).
6. The direction of the pull (sling line) must be in-line with the
plane of the eye bolts. When lifting a transformer with a
4-legged sling, align all four eyebolts to the center of the
unit (see figure 5). Ensure slings have sufficient capacity
for lift. When lifting a transformer with a 2-legged
sling, ensure that the eye bolts are installed at opposite
corners of the transformer and align to the center of the
transformer core (see figure 7).
7. Always use all the eye bolts or lifting holes provided in
angles when making a lift to avoid overrating of bolts or
torsion of frames.
8. Lift the power transformer by the core & coil only through
cutout in enclosure roof (see figure 8).
FIGURE 7
FIGURE 8
6