Hot stick transformer sampler

Details Hot stick transformer sampler Hot stick transformer sampler

1991-11-22

1994-04-05

Noland, Tom

Measuring and testing

Sampler, sample handling, etc.

Capture device

7386381, 7386384, 137315, G01N 110

Patent

active

052994643

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.

REFERENCES:
patent: 1795430 (1931-03-01), Howie et al.
patent: 3412613 (1968-11-01), Brown et al.
patent: 3992155 (1976-11-01), Nilsson
patent: 4046013 (1977-09-01), Green
patent: 4056981 (1977-11-01), Kalka et al.
patent: 4058373 (1977-11-01), Kurz et al.
patent: 4081112 (1978-03-01), Chong
patent: 4350052 (1982-09-01), Kendall
patent: 4715236 (1987-12-01), Willert
patent: 4794327 (1988-12-01), Fernandes
patent: 5131283 (1992-07-01), Canfield
Electrical World, vol. 185, No. 10, p. 72, May 15, 1976 "Transformer-gas Sampling procedure improved"; E. Brame, in 73/863.81.

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