Grading of Cables: 2 Methods | Electrical Engineering
The process of achieving uniformity in dielectric stress is known as grading of cables. There are two methods of grading viz.: 1. Capacitance Grading 2. Intersheath Grading. Method # 1. Capacitance Grading: In this method of cable grading, the uniformity in dielectric stress is achieved by using various layers of different dielectrics in such a manner that the permittivity, ∈r [...]