Tap Changer

The tanks are made of mild steel. All the parts-plates, hosting lugs, shapes etc, are welded to ensure great mechanical strength and absolute tightness. The tank is fitted with radiators for efficient cooling. Covers are suitably titled to avoid rainwater. They are bolted to the tank flange with packing of Gasket strip. Conservator is mounted on the cover for expansion of oil due to temperature rise. The tanks are carefully cleaned. The interior side of tank is painted with oil and heat resistant paint red oxide primer is applied and then three coats of weatherproof paint are applied.
All tanks undergo oil pressure test and vacuum test to avoid leakage of oil.
The tanks are fabricated rugged and tough to perform both outdoor duties under extreme temperature and indoor duties to room temperature.
SEALING MATERIAL
For all sealing purpose to avoid oil leakage at joints, gasket and molded component made from neoprene bonded cork sheet are used which are heat and oil resistant and does not spreads, cracks and damages on compression