Filter core for super high voltage transformer charged filtering oil and manufacturing method thereof

Abstract

The invention discloses a filter core for super high voltage transformer charged filtering oil and a manufacturing method thereof. The filter core is mainly prepared from 0-4.5 parts of activated clay, 4.5-9.5 parts of silica gels and 0.5-1 parts of an adsorbent. The activated clay has an active surface of 100 m <2 > / g, active surfaces of the silica gels are 300 m <2> / g, and an active surface ofthe adsorbent is 530 m <2> / g. A curing agent is also used in an amount of 8-10% by mass of the active clay, the silica gels and the adsorbent. The manufacturing method comprises the following steps ofmixing 0-4.5 parts of the activated clay, 4.5-9.5 parts of the silica gels and 0.5-1 parts of the adsorbent, and adding the curing agent for cure molding. The core conducts finishing processing undera vacuum condition on non-conforming transformer oil, and simultaneously achieves oil medium loss, volume resistivity and acid value standard meeting during processing.

Description

technical field [0001] The invention belongs to the field of electric power technology materials, and in particular relates to a filter element for ultra-high voltage transformer live filter oil and a manufacturing method thereof, which can be used for ultra-high voltage transformer live filter oil medium loss, volume resistivity, and acid value indicators of transformer oil filter. Background technique [0002] The life of a transformer in normal operation depends on the quality of the transformer oil. After several years of operation for a newly installed transformer, the quality of the oil will change to varying degrees. The greater the load of the transformer, the greater the heat energy generated. The body is affected by the heat energy, and its solid matter expands. Transformer oil, as the liquid insulation medium for cooling the inner body, will fuse some tiny impurities and dust on the solid surface into the oil during the process of thermal buoyancy displacement of ...

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Problems solved by technology

[0009] 2.1 There have been live oil filter equipment at home and abroad, and its characteristics are mainly for transformer switching oil with less oil and oil-less transformer oil filter with lower voltage level. When using the above live oil filter equipment, the working time is long and the efficiency is high. Low cost, high cost, and a single index for oil filtration projects, and this live oil filtration equipment needs to be equipped with a heating power supply and an intermediate filter tank

At present, there is no data at home and abroad to show that the filter element for live oil filtering and oil filtering equipment for ultra-high voltage transformers can simultaneously handle the filtration of oil medium loss, volume resistivity, and acid value indicators, and use the thermal energy efficiency generated by the transformer itself under load. Realize energy-saving electrified oil filtering, with the fastest oil filtering effect, high precision, time-saving and energy-saving

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