Tanking
Dried core coil assemblies from the oven are lowered into the tanks for housing the active part. This process requires experienced and skilled manpower to complete the tanking process in a duration which avoids re-ingress of moisture into the active part. The HV & LV connections of the active part are brought out using bushings for external connection to the grid cables and the tank is closed airtight. This is followed by mounting other protective and monitoring accessories. Detailed process includes the following important steps.