The extended portion of the elements is soldered with special soldering material by special type of gas flame gun on both sides of pack of specific width. The connection terminals, discharge resistors plate fitting, paper insulation wrapping is done. The insulation level shall be strictly observed while wrapping to avoid terminal to body breakdown. This dry pack is tested for DC voltage. Its capacitance value is measured to confirm the design requirement. This pack is housed in sheet steel container fitted with leads upon which are mounted in two porcelain bushings. The small hole is kept open on top plate for pre drying and impregnation.