Tepalas su bendros įtampos

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Transformatorinė alyva su inhibiciniais priedais Transformer Oil IEC inhibited Most mineral oil dielectric fluids contain an added oxidation inhibitor which is a chemical additive that acts as a preservative.

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The purpose of the inhibitor is to prevent oxygen from reacting with the oil, thus slowing the aging rate of the oil and also of the solid insulation.

The tepalas su bendros įtampos most common oxidation inhibitors used in transformer oils are 2,6-ditertiarybutyl para-cresol DBPC and 2,6-ditertiary-butyl phenol DBP.

We consider an inhibitor concentration of less than 0.

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When the inhibitor level drops to below 0. In some cases, the transformer may be equipped with an oil preservation system designed to keep dissolved oxygen at a low level below ppm.

Susijusios

Such a system could be in the form of an active nitrogen system a nitrogen tank or generatoror a conservator tank containing a rubber diaphragm bladder. Using inhibited oil is not required in these situations; however, having inhibited oil will provide additional protection against oil oxidation if the oil preservation system were to ever fail.

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Reinhibiting is done by hiring a contractor who is experienced in reinhibiting transformers. These passes will remove old inhibitor, acid precursors such as peroxideslow levels of acids, and other polar contaminants that may have formed.

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Removing these contaminants is necessary because the presence of contaminants in the oil and solid insulation will cause them to age and degrade much more rapidly. Next, the contractor will typically add a concentrated solution of DBPC inhibitor into the oil stream that is returning to the transformer.

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This process must be monitored to assure that the moisture content of the oil containing the inhibitor mixture is below 10 ppm parts per million. The final concentration of inhibitor needs to be 0.

Produkto aprašymas

Tepalas su bendros įtampos should also be noted that if the acid number of the oil has risen to 0. In this case, hot oil cleaning oil processing through an adsorbent material will first need to be performed to clean both the oil and the solid insulation in the transformer.

Typically, a transformer is de-energized when reinhibiting and hot oil cleaning are performed.

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These processes may be performed on an energized transformer, but it is extremely important to select a contractor who is experienced in energized reinhibiting or energized hot oil cleaning. This type of contractor must have the knowledge to properly evaluate the circumstances and determine whether energized processing can be done safely and with the proper equipment and expertise.

Nuorodos kopijavimas

Transformer Oil Inhibited is a highly refined, efficient performance inhibited transformer oil, formulated with a mineral base stock providing good dielectric strength and low temperature properties. This oil offers good oxidation stability.

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It insulates currentcarrying parts from each other and from ground, carries away heat, prevents glow discharges, extinguishes electric arcs in switchgear, and impregnates insulating materials.