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The Role Of Dry-Type Transformer Coils

Release Time：

2021-05-29

The coil of a dry-type transformer is the circuit part of the transformer and an important part of the transformer. It is known as the heart of the transformer. It completes the transmission and conversion of electrical energy.

Insulation of dry-type transformers, coils have turn insulation and interlayer insulation, inter-segment insulation, and end insulation between sections. The body insulation includes low-voltage coil to iron core, high and low voltage coils, and phase-to-phase insulation. And iron yoke insulation, lead insulation. The iron core has inter-chip insulation, clip insulation, and foot insulation.

Coil function: transmission and conversion of electric energy

Insulate everything except the input and output connectors.

1. Whether it is a dry-type or oil-immersed transformer, its coil changes the voltage and phase of the primary and secondary side network of the transformer while transmitting electrical energy. To meet the requirements of the secondary output grid.

2, whether it is a dry or oil-immersed transformer, its insulation can be divided into two categories:

(1) Longitudinal insulation: mainly refers to the insulation in each coil. Such as turn insulation, interlayer insulation, cake (or inter-segment) insulation and so on. Epoxy resin dry variable turn insulation includes insulating paint, glass fiber, etc. The interlayer insulation is made of glass fiber or organic insulating materials. The pie (or between the sections) is usually epoxy insulating material.

(2) Main insulation: Mainly refers to the insulation of the live part of the transformer to the ground. There are coil-to-core, high and low voltage coil insulation, etc. In epoxy resin dry change, this type of insulation is usually borne by epoxy resin.

(3) In the open-type SG dry transformer, a large number of NOMEX (Normanco) insulation materials are also used for longitudinal insulation. Use SM2 or silicone rubber for main insulation.

The role of dry-type transformer: It can complete the transmission and conversion of electric energy. Its coil is the circuit part of the transformer, and an important part of the transformer, which is known as the heart of the transformer.

Insulation part of dry-type transformer: the coil has turn insulation and interlayer insulation, inter-section insulation, and end insulation. The body insulation includes low-voltage coil to core, high and low-voltage coil, interphase insulation, iron yoke insulation, and lead insulation. The iron core has inter-chip insulation, clip insulation, and foot insulation.

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Keywords：

Research On Ventilation Of Distribution Transformer Room One

High-Voltage Test Transformer And Its Test Method Three

Research On Ventilation Of Distribution Transformer Room One

High-Voltage Test Transformer And Its Test Method Three