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O & M Manual for the CHGENLC Automatic
Transfer Switch with ATC-100 Control
8.1.2 Installing an Optional TVSS in an SE 100 A and 200 A.
If you already have an SE ATS and want to install an optional
TVSS inside the enclosure, follow the steps outlined below.
Note: Even though there is ample room and existing mounting holes within
an SE ATS to install an optional TVSS, it can also be mounted externally
on the ATS. If you want to externally mount the TVSS, follow the instruc-
tions in Section 8.1.1.
Figure 63. TVSS Installed Inside an SE ATS.
Step 1: Turn the utility (Source 1) power off and turn the genera-
tor (Source 2) control selector switch to the "OFF" posi-
tion before attempting to replace the TVSS.
Step 2: Align the TVSS Mounting bracket with the existing holes
in the back of the enclosure, located above the back
plate. Secure the mounting bracket to the enclosure
using the hardware provided and a flat blade screwdriver
(see Figure 64).
Figure 64. TVSS Mounting Bracket Secured to the Back of the
Enclosure.
Step 3: Align the TVSS with the holes in the mounting bracket.
Secure the TVSS to the mounting brackets using the
hardware provided and a flat blade screwdriver or 0.25
in. nut driver. Note that the TVSS wires should facing
the ATS back plate and installed components (see Figure
65).
IB00405002E
Figure 65. TVSS Installed on the Mounting Bracket.
Step 4: Mount the TVSS fuse block to the existing holes on the
Step 5: Install the supplied fuses in the TVSS fuse block (see Fig-
SCREW
Figure 66. TVSS Fuse Block Mounted in an SE ATSs.
Note: The length of the four (4) TVSS wires can affect the performance of
the TVSS. During installation, the wires should be kept as short and as
SCREW
close to identical length as possible. In keeping the length of the wires as
equal as possible, they should be "braided" to increase the effectiveness of
the TVSS.
Step 6: Based on the following connection points and wire rout-
For more information visit: www.eaton.com
Instructional Booklet
Effective: August 2007
ATS base plate using the hardware provided. For 100 A
and 200 A SE ATSs, the holes are directly to the left of
the contactor.
ure 66).
ing, determine which TVSS wire(s) will be the longest.
WIRE COLOR
CONNECTION POINT
Red
TVSS fuse block
Black
TVSS fuse block
White
ATS neutral bar
Green/Yellow
ATS ground bar
Cut all four (4) wires to the same length necessary to
reach the furthest connection point. Braid any excess
wire length for the other connection points.
Page 37
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