Sustainable Energy and Power Systems - Coursework Example

The advantage of Gauss’s law over Coulomb’s law lies in the facts that, in a faraday cage, the electric field inside get demonstrated. The law makes use of Ampere’s law dealing with magnetism. On the other hand, Coulomb’s law requires not only Gauss’s law in its derivation but also makes use of other Maxwell’s law (Fleisch 3). 3. Given that relative permittivity =3, and radius r3=2 cm. And permittivity of vacuum=8.85 pF/m, the potential difference between the surface of the conductive cylinder and the outer surface of the dielectric cylinder can be determined as follows ; This refers to an electrical device designed to transmit power through the barriers of electrical apparatus.

This apparatus may include transformers and circuit breakers. Also, be defined as an insulator, which refers to a barrier preventing conduction of electricity from one device to the other. Any bushing designed must be able to withstand high voltage generated by the electric power. In addition to this quality, the bushing must also be capable of withstanding mechanical forces and seal the conducting parts of a conductor well. As the current flows through a conductor, high electrical stresses act on the conductor and these can lead to breakdown in the electrical insulation (Fleisch 16).

There exist different shapes of bushings with varying sizes and designed in different techniques. Two of the types include solid bushings and capacitance graded. The solid bushing consists of a cylinder made of an insulating material, for example, porcelain or rubber. At the centre, a ground barrier covering the conductor with a high voltage exists and its attachment done to the ground. The figure below shows the arrangement of the bushing explained above. The cylinders, which conduct the electric current, spread out the change in voltage evenly.

The distribution of voltage in the conductor varies depending with the material. The graded capacitive voltage in bushings,