Can any body tell me about Hi-pot test, and why it is
necessary and its procedure of testing
Answer Posted / kanagasabai
HI-pot is High pontential test(or) High voltage test.
Many people are familiar with a continuity test. A
continuity test checks for "good connections." You do a
continuity test by seeing if current will flow from one
point to another point. If current flows easily enough then
the points are connected. Many people aren't familiar with
a hipot test. "Hipot" is short for high potential (high
voltage). A hipot test checks for "good isolation." You do
a hipot test by making sure no current will flow from one
point to another point. In some ways a hipot test is the
opposite of a continuity test.
Continuity Test: "Make sure current flows easily from one
point to another point."
Hipot Test: "Make sure current won't flow from one point to
another point (and turn up the voltage really high just
make sure no current will flow)."
In the simple case a hipot test takes two conductors that
should be isolated and applies a very high voltage between
the conductors. The current that flows is watched
carefully. Ideally not much current will flow. If too much
current flows the points are not well isolated and they
should fail the test.
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