10.1 Importance of Structural Design
The tank of a transformer is a closed structure which is made from steel plates. It behaves like a plate structure. Stiffeners are usually provided on all the sides and also on the top cover of the tank to reduce stresses and deflections in its plates under various types of loads. The tank is designed for a pressure value higher than the operating one, as specified by the applicable standards. The design and fabrication of the tank is complicated due to transport and site restrictions (on its dimensions and weight). Apart from pressure and vacuum loads, the transformer structure has to withstand other loads such as lifting, jacking, haulage, etc. Its strength against seismic loads may ...
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