The High Current Cost Cutting Alternative to
Draw-Lead or Bottom-Connected Bushings
In the past, Utility Engineers and Transformer Design Engineers
were faced with a choice of either bottom-connected bushings
(with current capability of 1200 amperes or more) or draw-lead
type bushings (limited to 400 or 800 amperes). In applications
where current levels were below 400 or 800 amps, the engineer
would choose the draw-lead type bushing which allowed simpler
and quicker installation and removal. This often would permit
transportation and installation of the transformer "oil-filled",
saving thousands of dollars. The LAPP Quick Link Bushing (Patented) allows the best of both worlds with the convenience
of a draw-lead bushing and the current capability of a bottom-connected,
currently (2000 amps).
• High current capability of 2000 amperes
• Installation and removal similar to "draw-lead"
type bushings
• Proven multiple contact connector transferring current
from the bottom terminal to the bushing conductor
• Lapp Quick Link Bushing mechanism can withstand short circuit
current of up to 25 times the rated current
• The Quick Link system has proven to maintain its full rating
after more than 500 operations
• The Quick Link mechanism has no internal connections which
could become loose or overheat
• Installation is made by simply connecting the rod and pulling
through the bushing
• No special tools or specific torque values are required.
Overall bushing diameter is reduced because the current is
carried by the bushing rather than a draw-lead or draw-rod.
• The Quick Link rod is much lighter than typical draw-leads
or draw-rods, making installation and removal more convenient
The Lapp Quick Link Bushing has a unique design that transfers
the current from the bottom terminal to the bushing. This
means that Lapp Quick Link Bushings have the same small diameter
as a standard bottom-connected bushing of the same current
rating. The bottom connector is a proven multiple contact
design that provides safe, reliable operation during short
circuit current, up to 25 times the rated current even after
more than 500 operations. The Lapp Quick Link Bushing has
a one-piece conductor that carries the current and a lightweight,
two-piece Quick Link rod that makes installation and removal
easy. No special tools are required for removal or installation.
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