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Principle of dry-type transformer

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1. Principle of dry-type transformer - Introduction

Dry type transformer is actually an electrical device that uses the principle of electromagnetic induction to transmit electrical energy or signals from one circuit to another. It is an important component for transmitting electrical energy or signals. It is widely used in local lighting, high-rise buildings, airports, docks, CNC machinery equipment and other places. Simply put, dry-type transformers refer to transformers whose iron cores and windings are not immersed in insulating oil. Dry type transformers are mainly divided into three forms: open type, closed type, and cast type.

2. Principle of dry-type transformer - main forms

Next, the editor will introduce the main forms of dry-type transformers, which can be mainly divided into the following categories:

1. Open type: It is a commonly used form, with its body in direct contact with the atmosphere, suitable for relatively dry and clean indoor environments. There are generally two cooling methods: air self cooling and air cooling.

2. Closed type: The device is located inside a closed shell and does not come into direct contact with the atmosphere.

Casting type: using epoxy resin or other resins as the main insulation, it has a simple structure, small volume, and is suitable for transformers with smaller capacities.

3. Principle of dry-type transformer

The working principle of dry-type transformers, like other transformers, follows the physical principles of voltage technology required for the use of electrical and magnetic coupling: when current flows through a wire, it produces a changing magnetic field or surrounding "magnetism". The fluctuations on the wires around the magnetic field generate current in the wires. Therefore, there will be fluctuating magnetic fields in the second and first lines, placed next to them, and the current is induced to flow in the second line. Therefore, electricity is transmitted through two wires that do not actually come into contact, namely the first and second wires.

What is the working principle of a transformer?

Characteristics of applicable locations for oil immersed transformers

What is the working principle of a transformer?

Characteristics of applicable locations for oil immersed transformers

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