Ultrasonic intelligent main transformer cooling device

Abstract

The invention relates to an ultrasonic intelligent main transformer cooling device. The device comprises a main transformer, transformer oil contained in the main transformer, a plurality of surrounding ultrasonic wave emission probes mounted on the inner wall of the main transformer, a surrounding electric field monitoring probe, an ultrasonic generator mounted outside the main transformer, an electric field monitor, a temperature detector and a control module; and a detection probe of the temperature detector extends into the transformer oil in the main transformer. The heat exchange coolingcapacity can be efficiently enhanced; and compared with a static natural main transformer cooling mode widely applied at present, the heat exchange cooling effect of the transformer oil in the main transformer is greatly improved.

Description

technical field [0001] The invention relates to a main transformer ultrasonic intelligent cooling device. Background technique [0002] During the operation of the main transformer, the windings and iron core will generate a lot of heat due to the electromagnetic action, which needs to be dissipated and cooled by the transformer oil. At present, there are two main methods for circulating cooling of the main transformer oil flow. One is to install a circulating submersible pump for strong oil. Circulating cooling, the second is cooling by natural temperature difference. The first method requires the addition of a high-speed mechanically rotating power oil pump, and if there is a small crack leak in the negative pressure area of ​​the oil pump, cavitation will occur, and the moist air from the outside will be sucked into the main transformer, which will endanger the safe operation of the main transformer. Heat is generated, especially when the oil pump has a heating failure, ...

AI Technical Summary

Problems solved by technology

The first method requires an external high-speed mechanically rotating power oil pump, and if there is a tiny crack leaking in the negative pressure area of ​​the oil pump, cavitation will occur, and the humid air from the outside will be sucked into the main transformer, endangering the safe operation of the main transformer. Secondly, the oil pump will run at high speed for a long time Heat is generated, especially when the oil pump has a heating fault, it will cause the transformer oil flowing through the oil pump to be heated and cracked, which also endangers the safe operation of the main transformer, and at the same time causes misjudgment of the transformer oil chromatography monitoring test, and the oil pump is easily damaged due to long-term mechanical wear, etc.

The second way is the natural cooling of heat exchange by continuously reducing the temperature difference gradient, which requires a large increase in the amount of oil used and the heat dissipation area of ​​the main transformer to meet the satisfaction. Equipment investment cost and floor area

Images