\[q = rac{P}{A}\]
\[D = rac{W_t imes h}{q_{all} imes A}\]
where \(q\) is the soil bearing capacity, \(P\) is the total load, and \(A\) is the foundation area. The foundation area calculation determines the required area to support the transformer:
where \(M_r\) is the resisting moment, \(W_t\) is the transformer weight, and \(d\) is the distance from the center of gravity to the foundation edge.
Transformer Foundation Design Calculation: A Comprehensive Guide**
where \(D\) is the foundation depth, \(W_t\) is the transformer weight, \(h\) is the height of the transformer, \(q_{all}\) is the allowable soil bearing capacity, and \(A\) is the foundation area. The stability calculation determines the foundation’s resistance to overturning and sliding: