Analysis of the thermal field of a powerful toroidal transformer

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Analysis of the thermal field of a powerful toroidal transformer

1. Problems of using powerful toroidal transformers in complexes for welding pipes of main gas pipelines.

1.1. Description of the complex for welding pipes of main gas pipelines.

1.2. Design features of toroidal transformers in the systems for the welding of pipes of main gas pipelines.

1.3 Electrical and thermal modes of transformer operation in a complex for welding main gas pipes.

1.4. The need to calculate the thermal field of a toroidal transformer.

2. Method of calculating losses in the transformer.

2.1. Analysis of methods for calculating losses in the windings of the transformer magnetic circuit.

2.2. Calculation of active resistances of windings and losses in them.

2.3. Calculation of losses in the magnetic circuit.

3. The method of calculating the thermal field of the transformer.

3.1. Creating a model for calculating the thermal field of a transformer.

3.2. Determination of the main parameters included in the calculation model of the transformer.

3.3. An example of calculating the thermal field of a transformer.

4. Analysis of the calculated and experimental studies of the thermal field of the transformer KSS-01.

4.1. Tests of the transformer without load.

4.2. The test of transformer with a simulated load.

4.3. Comparison of calculated and experimental results of the thermal field of the transformer.

5. Conclusions.