Hot stick transformer sampler
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United States of America Patent
Stats
-
Apr 5, 1994
Grant Date -
N/A
app pub date -
Nov 22, 1991
filing date -
Nov 22, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hot-stick with a selective transformer-penetration tool is described. The tool combination is useful for remote sampling of oil from an energized high-voltage utility transformer without introducing an environmental and maintenance risk. The sample is then independently tested for PCB contamination. The tool used in combination with the hot-stick is selected from among a remote drill chuck provided for drilling a guide hole in the transformer, an impalement spike for enlarging the guide hole, a remote syringe to withdraw an oil sample from the transformer, a remote rivet setter, and a remote caulking gun to close and seal the hole.
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