| 摘要 |
<p>A method for preventing explosions and fires in an electrical transformer (1) with a tank (2) filled with an inflammable coolant (7), wherein a break in the electrical insulation of the transformer (1) is sensed using a pressure sensor means (11), the coolant (7) is partially removed from the tank (2) by means of a valve (15), and the hot portions of the coolant (7) are cooled by injecting a pressurised inert gas (16) into the bottom of the tank (2) to stir up the coolant (7) and expel the adjacent oxygen.</p> |
