Prowess Engg Pvt Ltd Chakan, Pune, Maharashtra

Fin walls tank are manufactured according to customer designs and relevant welding procedures.   Maximum fin height is 1600 mm.   Maximum dimensions are 4000 mm x 4000 mm x 4000 mm.   Maximum total weight is 7500 Kg.   ADVANTAGES   Compact in size - Transformers with corrugated walls are smaller than transformers with radiators.   Improved heat dissipation - the role of fins is to increase the surface of the tank, which is in contact with the cooling air. Due to the temperature   rise of the windings under load, the oil temperature also rises. The hot oil rises, meets the top cover and goes down into the fins where it is cooled by the air rising up between the fins. Required heat dissipation can be achieved by varying the number of corrugations and the depths height of corrugations.   Due to vertical Oil Channel greater stability is achieved.   The fins have sufficient degree of elasticity to absorb the expansion in volume of the liquid, due to the heating of the cooling medium at the same   time it provides for a larger dissipating surface to cool the same medium.   No blockage of oil flow into the fins. Blockage of oil is possible in pressed steel type radiator due to possible closing of header pipe connection on   the tank walls, unlike corrugated tanks.   Oil cleaning is easier and economical. Atheistic Appeal is higher than the traditional transformer tank.   The Transportation cost is lower due to reduction in weight and overall dimensions.   The requirement of space for installation of the Transformer is lower  

The corrugated wall panel / fin walls are directly welded to the transformer tank. Besides the obvious advantage of reduction on the overall dimension of the transformers, the thermo power wastage is lower and the flow of oil does not become sluggish hence the efficiency of the radiators is better. This in the long term improves the usable life of the transformer and maintenance cost is lowered.   ADVANTAGES   1. Potential for saving in materials - Reduction > 30%   2. Reduction in the weight of the radiators - Reduction > 30 %   3. Reduction in the overall dimension of the - About 50% volumetric reductions.   General : Finwalls are designed to be used in the transformer tanks up to 10 MVA to let the cool fluid to complete a circulation pattern and to be   cooled by transferring heat through the fins to the ambient air.   Material : Cold rolled steel according to EN 10130 / IS 513   Fin Width : 400 mm to 1600 mm   Fin Depth : 50 mm to 400 mm   Edge Bending : 45 & 90 Degree Upward & Downward   Embossing : Available upon customer request   Spot Welding : Available upon customer request   Stiffener : Available in Φ8 mm & Φ 10mm   Quality : Leakage control by UV light against dye penetrant