Do you know the insulation structure of the transformer?

Transformer is the core equipment in the power system, and its insulation structure is very important to ensure the safe and reliable operation. The insulation structure is designed to prevent current leakage, electrical breakdown and ensure electrical isolation between components. The several main insulation structures of the transformer will be described in detail below:

Content

● Winding insulation

Winding insulation is the most basic form of insulation inside the transformer, which is wrapped in the outside of the winding wire, to prevent the electrical short circuit between different turns or layers. Winding insulation is usually made of materials such as insulating paper or insulating paint, with good electrical properties and mechanical strength.

● Major insulation

Main insulation refers to the insulation between the high voltage winding and the low voltage winding, between the winding and the core, and between the winding and the fuel tank. It bears the highest voltage in the operation of the transformer, so it requires extremely high power resistance strength and stability. The main insulation is usually composed of multi layers of insulation board, insulation oil and support, forming a strong insulation barrier.

● Lead and tap switch insulation

The lead is a key part of connecting the transformer winding with the external circuit, and its insulation performance is crucial to prevent electrical faults. The tap switch is used to adjust the output voltage, and its insulation structure should ensure that reliable electrical isolation can be maintained at different tap positions. The insulation of lead wire and tap switch is usually made of insulation sleeve, insulation board and special insulation materials.

In Summary

In conclusion, the insulation structure of the transformer includes winding insulation, main insulation and lead and tap switch insulation and other forms. These insulation structures together constitute the guarantee of the safe operation of the transformer, and ensure that the power system can transmit electricity stably and efficiently.

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LuShan, est.1975, is a Chinese professional manufacturer specializing in power transformers and reactors for 49 years. Leading products are single-phase transformer, three-phase isolation transformers,electrical transformer,distribution transformer, step down and step up transformer, low voltage transformer, high voltage transformer, control transformer, toroidal transformer, R-core transformer;DC inductors, AC reactors, filtering reactor, line and load reactor, chokes, filtering reactor, and intermediate,high-frequency products.

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