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Coil Winding For Transformer buy in Sonipat
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Coil Winding For Transformer

Coil Winding For Transformer

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Coil Winding For 3150 KVA Transformer

Transformer windings are designed to meet three fundamental requirements, such as mechanical, thermal and electrical. They are cylindrical in shape and are assembled concentrically.

The low tension windings are of the helical type, Double paper covered, rectangular shape, copper or aluminium strips are used for LT windings. Single or multiple strips in parallel are used depending upon the current rating of the transformer.

The high tension windings normally consist of cross over coils. Paper covered round conductors are used for cross-over coils. For higher current rating Transformers, continuous disc windings are used and in that case rectangular strip conductor is employed.

Windings are rigidly supported by elephantide washers, electrical grade kraft paper, press board as per IS: 1576 and spacers. Sufficient cooling ducts are provided to reduce the temp. rise of windings, oil and hot spot. All coils are preshrunk as per the seasoning cycle to withstand mechanical forces developed during short time over loads and short circuit conditions.

Tappings generally 2.5 to 5% tappings are provided on HV windings. These are set by means of an externally operated tap changer, which should be operated only when the transformer is de-energised. All tap changing switches have indicator and locking device. Other taping range and on load tap changer are also provided against customer specifications.

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Coil Winding For Transformer
Coil Winding For Transformer
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