Installation Manual

Product information
Introduction
High-voltage (primary) bushings are designed for external
mounting (and removal) on pad-mounted transformers,
filled with transformer oil, Envirotemp™ FR3™ fluid, or an
approved equivalent. Modified versions of these bushings
are also available for applications with SF
6
. They are to be
installed inside cubicles. High-voltage (primary) bushings are
used for connecting the high-voltage cables outside of the
tank to the primary leads on the inside of the tank through
the tank wall.
Read this manual first
Read and understand the contents of this manual and follow
all locally approved procedures and safety practices before
installing or operating this equipment.
Additional information
These instructions cannot cover all details or variations
in the equipment, procedures, or process described nor
provide directions for meeting every possible contingency
during installation, operation, or maintenance. For additional
information, contact your representative.
Acceptance and initial inspection
Each high-voltage bushing is in good condition when
accepted by the carrier for shipment. Upon receipt, inspect
the shipping container for signs of damage. Unpack the
high-voltage bushing and inspect it thoroughly for damage
incurred during shipment. If damage is discovered, file a
claim with the carrier immediately.
Handling and storage
Be careful during handling and storage of the high-voltage
bushing to minimize the possibility of damage. If the high-
voltage bushing is to be stored for any length of time prior
to installation, provide a clean, dry storage area.
Standards
ISO 9001 Certified Quality Management System
Figure 1. 200 A, 15, 25, 28 and 35 kV Bushing Well
(shown with removable stud and Tri-Clamp Well.)
Figure 3. 600 A, Deadbreak, One Piece Bushing, 15, 25
and 35 kV (15/25 kV bushing shown).
AIR
SIDE
OIL/SF
6
SIDE
TANK
WALL
GASKET
OIL/SF
6
SIDE
EPOXY WELL:
FLAT GASKET
W/7° TAPER
TANK
WALL
GASKET
(SELF
CONTAINED
GASKET)
AIR
SIDE
Figure 2. 200 A, Loadbreak, One Piece Bushing, 35 kV.
AIR
SIDE
GASKET
TANK
WALL
OIL/SF
6
SIDE
WARNING
All associated apparatus must be de-energized and all
voltage sources removed during installation, removal
or maintenance. Improper operation, handling, or
maintenance can result in death or severe personal
injury.
CAUTION
Use red or blue shipping cap provided to protect
bushings from physical damage and contaminants.
This shipping cap should not be used for insulating a
bushing when energizing the unit.
1
High-voltage primary bushings installation instructions S800-35-2 November 2013 www.cooperpower.com