Measure Cable connection (black)
Cable strain relief
Coaxial cable from FRAX
(Measure)
Ground braid connected to
ground.
Keep the braid straight along
the bushing and ground
the braid at the base of
the bushing. Ensure good
connection to ground using
the G-clamp.
Ground braid practice
The ground braid shall go from the C-clamp the short-
est way to the bottom of the bushing. Good ground
connection is essential for reliable test results. Look at
the next two pages for more information.
The braid cable set consists of 4 x 3 meter tin plat-
ed copper braids. Many transformers have bushings
shorter than 3 m, which suggests two braids, one for
each bushing, to be enough when it comes to length.
The C-clamp allows a two braid practice, not neces-
sary when using FRAX, but useful if compatibility with
previous two braid measurements is required.
The remaining braids can be used if bushings are taller
than 3 m. See picture below how to joint two braids.
G-clamp connection to ground
The new, unique ground clamp handles both nuts
and bolts as well as other round and flat connectors,
making it the most easy-to-use and versatile ground
connection available.
The G-clamp is easy to attach, easy to tighten the
braid, which ensuring a quick and reliable procedure
for shortest braid practice, which is essential to get
repeatable measurements.
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