Paint-dipping drying technique for dry-type three-phase combined transformer

A technology of combining transformers and voltage transformers, which is applied in the direction of inductors, transformers, conductor/cable insulation, etc., can solve the problems of no anti-theft, inconvenient installation, explosive, etc.

Inactive Publication Date: 2009-04-15
王立诚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the combined transformers widely used in China are JLS series oil-immersed combined transformers or JLSZ series epoxy resin cast dry-type combined transformers. Oil-immersed combined transformers have serious insulation oil leakage, require frequent maintenance, and have no protection against theft. Electrical function; JLSZ series dry-type combined transformer adopts epoxy resin casting and drying process, so the overload capacity is small, explosive, heavy, and inconvenient to install

Method used

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Embodiment Construction

[0014] Taking the 10kV three-phase combined transformer as an example, it is composed of two parts: 10kV high-voltage voltage and current transformers. The paint-dipping and drying process of the primary and secondary coils of the 10kV voltage transformer is completed three times, and the first time is the primary coil. The second time is to wrap the foot ring and place the secondary coil to soak the paint, the third time is to dip the paint after the outer insulation is wound, the process of the three dipping paint drying processes, and the first and second coils of the current transformer The paint-dipping and drying process of the coil is the same, all of which are: ① white blank pre-baking; ② vacuum dehumidification; ③ dipping paint; ④; paint back; ⑤; .

[0015] The specific implementation conditions of the paint-dipping and drying process for the primary and secondary coils of 10kV voltage transformer are as follows:

[0016] 1. White billet pre-baking

[0017] The temp...

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PUM

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Abstract

The name of the invention is paint dipping and drying technology of a three-phase combined transformer. The invention relates to the dry-typed three-phase combined transformer, in particular to the paint dipping and drying technology of the three-phase combined transformer. The technology can solve the problems of small overload capacity, easy explosion, heavy weight and inconvenient installation of the known epoxy resin cast dry-typed combined transformer. The technology is the paint dipping and drying technology of a voltage transformer coil and is completed by three times; in the first time, the coil is well winded for paint dipping; in the second time, a secondary coil is well placed for paint dipping after wrapping a foot loop; in the third time, the paint dipping is carried out after well winding an outer insulation; the three times of the paint dipping and drying technology process and the paint dipping and drying technology process of a current transformer coil are as follows: (1) pre-drying of a white body; (2) vacuum dewetting; (3) paint dipping; (4) returning of paint; (5) returning of residual paint; (6) cleaning; (7) returning of a cleaning agent; (8) drying. The paint dipping and drying technology has higher dynamic and thermal stability, fire retardance, environmental protection, safety, low loss, good thermal radiation, great overload capacity, light weight, convenient transportation and installation and free maintenance.

Description

technical field [0001] The invention relates to a dry-type three-phase combined transformer, in particular to a paint-dipping and drying process for a dry-type three-phase combined transformer. Background technique [0002] At present, the combined transformers widely used in China are JLS series oil-immersed combined transformers or JLSZ series epoxy resin cast dry-type combined transformers. Oil-immersed combined transformers have serious insulation oil leakage, require frequent maintenance, and have no protection against theft. Electrical function; JLSZ series dry-type combined transformers adopt epoxy resin casting and drying process, so the overload capacity is small, explosive, bulky, and inconvenient to install. Contents of the invention [0003] The purpose of the present invention is to address the above shortcomings, and to provide a transformer with high dynamic and thermal stability, flame retardant, environmental protection, safety, low loss, good heat dissipa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/12H01F38/34H01B13/16
Inventor 王立诚
Owner 王立诚
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