Automatic vacuum oil injection method and tool for unmanned mutual inductor

Abstract

The invention relates to an automatic vacuum oil injection method and a tool for an unmanned mutual inductor and belongs to the technical field of mutual inductors. The technical scheme is that: the tool comprises a speed-limiting nozzle (1), ball valves, an oil suction pipe (5), a liquid level sensor (7), an oil injection pipe (9), a vacuum pipe (10) and an oil cup (11), wherein the oil cup is provided with the oil injection pipe, the oil suction pipe and the vacuum pipe; the oil injection pipe is provided with the speed-limiting nozzle; the oil suction pipe and the vacuum pipe are provided with the ball valves (4, 8); and the liquid level sensor is arranged in the oil cup. The automatic vacuum oil injection method and the tool have the advantages: the oil injection speed is controllable; human-made quality factors are avoided; the vacuum oil injection quality is improved by tensioning membranes and degasifying; the self sealing of the oil cup is realized; and products can be flexibly and efficiently hoisted at any time according to production requirements without damage to the product state. A system can quickly suck a small amount of oil in all product oil storage tanks back toan oil tank by using the oil suction pipe, transmits oil level signals to a programmable logical controller (PLC) and fulfills the automatic functions of stopping injecting oil in high oil levels andcontinuing injecting oil in low oil levels.

Description

technical field [0001] The invention relates to an unattended transformer automatic vacuum oiling method and a tool, belonging to the technical field of transformers. Background technique [0002] At present, the background technology is to use the oil filling cup to vacuum oil the transformer, and there are the following technical problems: ① The oil injection speed is uncontrollable; Restricts production efficiency; ④The excess oil above the flange of the oil conservator must be drained before installing the expander, and the workload is heavy; ⑤Vacuum, oil filling, and oil replenishment are all manual operations, with heavy workload and many human quality factors. Contents of the invention [0003] The purpose of the present invention is to provide an unattended transformer automatic vacuum oil filling method and tool, which can realize controllable oil speed, oil injection and film pulling, position adjustment at any time, automatic oil filling, oil replenishment and o...

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Problems solved by technology

[0002] At present, the background technology is to use the oil filling cup to vacuum oil the transformer, and there are the following technical problems: ① The oil injection speed is uncontrollable; Restricts production efficiency; ④The excess oil above the flange of the oil conservator must be drained before installing the expander, and the workload is heavy; ⑤Vacuum, oil filling, and oil replenishment are all manual operations, with heavy workload and many human quality factors

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