An insulating bushing for oil-immersed transformers with alert function

Abstract

The invention discloses an insulating bushing for an oil-immersed transformer with an alert function, belonging to the technical field of transformers, and an insulating bushing for an oil-immersed transformer with an alert function. In this solution, when the temperature in the insulating bushing is too high At the same time, the gas inside the protective film expands and finally bursts and separates. The bursting sound will remind the staff to be alerted in time. At the same time, the alert ball will float up. Know the position in the transformer, save the time to find and eliminate the problem transformer, and after the separation membrane is separated, the lower part of the protective membrane will touch the upper end of the convex edge, and the liquid in the liquid storage chamber after the liquid barrier membrane is pierced The cooling oil will flow out into the cooling channel, which can cool the overheated components such as the insulating sleeve and the internal conductive rod, achieving a temporary cooling effect, and providing more time for the follow-up staff to deal with.

Description

technical field [0001] The invention relates to the technical field of transformers, and more specifically relates to an insulating bushing for an oil-immersed transformer with an alert function. Background technique [0002] A substation is a place in a power system that transforms voltage and current, receives electric energy and distributes electric energy. The essential equipment in the substation is the transformer. The transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main functions are voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. The oil-immersed transformer is the A common kind. [0003] The insulating bushing in the oil-immersed transformer connects the transformer with important electrical components of the external energy system, and the lead wire of the transformer winding must pass through the insulating bushing and be connected to the outside world....

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an insulating bushing for oil-immersed transformers with a vigilant effect. In this solution, when the temperature inside the insulating bushing is too high, the protective film of the insulating bushing will The internal gas heats up and expands, which will eventually cause the protective film to burst and separate from the separation film. At this time, the sound of bursting in the protective film will first remind the staff to carry out preliminary and timely high-temperature alerts. At the same time, the alert ball inside the protective film It will float up, which can not only further alert the staff and reduce the possibility of danger, but also enable the staff to know the location of the problematic transformer among the many transformers in time through the alert ball, saving work. The time for personnel to find and eliminate the problem transformer greatly shortens the processing time for the accident transformer, and after the separation film is separated, the lower part of the protective film will touch the upper end of the outer convex edge of the insulating sleeve, and the upper tip of the outer convex edge The thorns will pierce the liquid blocking film at the bottom of the protective film, and the cooling oil in the liquid storage chamber will flow out into the inlet channel, and finally into the cooling channel, so that the overheated components such as the insulating sleeve and the internal conductive rod can be controlled. Cooling can achieve a temporary cooling effect, so as to prolong the dangerous time caused by excessive temperature, provide more time for subsequent staff to deal with, and further improve safety

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