| 摘要 |
PURPOSE:To obtain a stationary induction apparatus such as high voltage and high capacity transformer with high cooling power, especially semipool system insulation gas transformer by filling insulation gas in a tank, arranging a heat exchanger and sprinkling supercooled coolant gaseously or into drops from a sprinkler. CONSTITUTION:A liquid storage 6 provided in the bottom of a transformer tank 1 supplies shortage of coolant 5 which vapors in a coolant tank 4, with pump 7 and through a pipe 8a. In the transformer tank 1, where pressure is lowered and insulation is inferior as there is little vapor of the coolant 5 in starting the transformer at a low temperature, high insulation gas is charged previously. As insulation gas 9 is uncondensable gas, the vapor of the coolant is the maximum in the range from the middle (b) to the lower part (c) of the tank 1, where a heat exchanger 10 is arranged, and the vapor of the coolant 5 is condensed and stored in the liquid storage 6 in the bottom of the transformer tank 1. The coolant 5 is introduced from the liquid storage 6 to the upper part of the transformer tank 1 through the pump 7 and the pipe 8b and sprinkled into gas or drops. The vapor of the coolant is combined with the coolant atomized into mist, part of which drops to the liquid storage and the rest is liquidized touching the heat exchanger in the lower part of the transformer tank 1 as the velocity of the convention current from the upper part to the lower part of the transformer tank 1 is increased. |
