Underground transformer cabin consisting of two units, one insid

Details Underground transformer cabin consisting of two units, one insid Underground transformer cabin consisting of two units, one insid

1992-02-07

1993-06-15

Picard, Leo P.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361384, 361381, 361390, 361399, 174 151, 165 803, H05K 720

Patent

active

052204847

ABSTRACT:
An underground transformer cabin consisting of two prefabricated vibrated reinforced concrete units, one inside the other. A larger external unit is enclosed by a covering plate, and a smaller, internal unit is raised off a bottom of the larger external unit so that there is a wide air space between the sides and bottom of the two walls. The bottom of said smaller internal unit has windows or openings through which fresh outdoor air flows into the smaller internal unit from underneath, passing first over the transformer and then into an outlet pipe which extend externally at a height above the inlet pipe.

REFERENCES:
patent: 3749981 (1973-07-01), Koltuniak et al.
patent: 4665466 (1987-05-01), Green
patent: 4901200 (1990-02-01), Mazura

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