Oil compensation type transformer

Abstract

The invention discloses an oil compensation type transformer and belongs to the technical field of power supply equipment. The oil compensation type transformer comprises a transformer box. The transformer box is provided with an oil cavity for containing transformer oil. A compensation oil tank is arranged on the top of the transformer box. A fixed pipe is fixedly installed in a sampling opening and penetrates through the oil cavity of the transformer box, and the end of the fixed pipe is fixed to the transformer box. The portion, located in the oil cavity, of the fixed pipe is provided with an oil inlet gap. The extending direction of the oil inlet gap is the same as that of the fixed pipe. An isolation pipe is rotationally installed in an oil inlet pipe and provided with an oil through groove corresponding to the oil inlet gap. A sampling pipe is inserted into the isolation pipe. The two ends of the sampling pipe are closed. The sampling pipe is provided with an opening corresponding to the oil inlet gap. The oil compensation type transformer can collect oil samples at multiple positions of the bottom of the transformer, improves oil sample collecting accuracy, prevents transformer oil lack caused by oil sample collection in the oil cavity and is widely applied to power supply systems.

Description

technical field [0001] The invention relates to the technical field of power supply equipment, in particular to an oil quantity compensation type transformer. Background technique [0002] Transformer is one of the indispensable important equipment in the substation, and transformer oil is an indispensable chemical oil in the transformer, which is mainly used for internal insulation and heat dissipation of various oil-immersed transformers, as well as various oil circuit breakers and transformer substations. According to regulations, the arc extinguishing of connected switches needs to be sampled and analyzed every quarter to monitor the acidity, particle size, viscosity, sulfur and copper ion content of the oil, etc. A difficult problem for operation and maintenance personnel. At present, the traditional oil extraction method is to directly use an open glass container to take oil from the oil discharge valve hole of the high-altitude transformer, but this sampling method c...

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Problems solved by technology

At present, the traditional oil extraction method is to directly use an open glass container to take oil from the oil discharge valve hole of the high-altitude transformer, but this sampling method can only collect oil samples near the oil discharge valve position, and oil samples far away from the oil discharge valve position cannot be collected. collection, resulting in distortion of the oil sample, and there is also a large amount of oil discharged, resulting in lack of oil in the oil chamber of the transformer, which makes the upper part of the oil chamber form a vacuum negative pressure area, which affects the normal use of the transformer

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