FIELD: electrical engineering.
SUBSTANCE: proposed device designed to prevent explosion in transformer cooled down by large volume of combustible liquid has tank filled with combustible cooling liquid and transformer tank decompression facility. The latter has burst member with built-in explosion detector equipped with inhibitor. Inhibitor has first zones of smaller thickness compared with that of its remaining part designed for bursting without formation of fragments. Second zones of smaller thickness compared with remaining part of inhibitor are designed for burst-free bending during bursting of mentioned member. Burst member is made for bursting when pressure within tank exceeds desired threshold value. Signal of burst detector built in bursting disk actuates cooling system and prevents oxygen contact with explosive gases generated by electric arc when it comes in contact with oil.
EFFECT: enhanced speed of tank decompression that keeps it intact.
17 cl, 6 dwg
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