| 摘要 |
<p>The invention relates to an auxiliary cooling system to limit the temperature magnetic wall of a high power rectifier transformer below safe working temperature limit, the transformer comprising at least a core having high voltage (HV) windings, and low-voltage (LV) windings housed in a tank made of magnetic steel, the tank being maintained full of oil to keep the windings and the other associated accessories of the transformer completely immersed in the oil the terminals of the LV and HV windings are taken out from the tank for connection to the external circuits, the LV-side of the transformer carries high current and routed through a plurality of raisers for termination to several epoxy bushings, the magnetic field of this high current generating high temperature on the LV-side magnetic wall of the tank, the auxiliary cooling system comprising a plurality of external coolers; an oil pipe circuit branched out of the main cooling pipe of the transformer; and a plurality of box-type stiffeners provided along the length of the tank wall.</p> |
