Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1987-12-10
1989-05-30
Tolin, Gerald P.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
361344, 200 4322, 200 5112, 174 5054, H05K 500
Patent
active
048356573
ABSTRACT:
An explosion-proof electrical unit comprises an explosion-protected chamber for leading-in current conductors and an explosion-protected equipment chamber divided by a blast-resistant wall, and through current conducting terminals secured on the blast-resistant wall. The current conducting part of each terminal inlcudes at least two elements, of which one such element is movable. In one extreme position of the movable element this movable element and the fixed element are electrically closed, whereas in the other extreme position of the movable element they are open. A cavity formed between the movable and fixed elements of the current conducting part of each through terminal is explosion-protected.
REFERENCES:
patent: 4213018 (1980-07-01), Piston
patent: 4520243 (1985-05-01), McIntyre
Explosion Protection Standards . . . Europe, EX Magazine #9, Oct. 1983, Dr. Schimmele, pp. 3-11.
Simplex GE.RTM., Wallacetown.RTM., Type A74 Flamproof Two Motor Starter or Two Speed Starter.
Article, "Electrical Equipment for the Mining Industry", 4 p., Simplex (GE), Scotland.
Dzjuban Vitaly S.
Moskalev Eduard P.
Parkhomenko Alexandr I.
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