An optimal technique for manufacturing of H.T. capacitor by using Metallized Polypropylene Film

Abstract

Now a day's Low Tension (L.T.) & High Tension (H.T.) capacitors are manufactured by using All Polypropylene Film (APP) and L.T. capacitors. All Polypropylene Film has very less dielectric losses, long life, high voltage stress. So it is widely used in H.T. as well as L.T. capacitor. However, the cost of L.T. capacitor is increased due to use of APP in L.T. capacitor. As more costing, the use of APP in L.T. capacitor is limited. The main disadvantage of APP is non-self-healing property. On the other hand, Metallized Polypropylene Film has self-healing property. There are many advantages due to use of MPP film in capacitor - the size of capacitor is reduced, losses are less and cost of capacitor is decreased. So, it is an optimal technique to use MPP in manufacturing of H. T. capacitors.