The paper proposes a design and
implementation of Van de Graaff generator whose
output voltage is 80.28 KV. To calculate the generated
output voltage we have use the sphere gap method. A
Van de Graaff generator is an electrostatic generator as
it works on a principle of electrostatics. A Van de
Graaff generator is used to generate a high DC voltage.
It was first developed by Robert Jemison Van de Graaff
in 1929, in USA and carries his name along 1931.
This generator uses a moving belt to build up very
high voltages on a hollow metal globe which is located
on top of the generator. The potential difference that is
developed in modern Van de Graaff generator reach
about 5 megavolts. A Van de Graaff generator that we
design and built that is intended to be used in schools
and colleges for teaching the basics principles of
Electrostatics and Electromagnetics as well as many
Nowadays many schools and colleges laboratories
and many museums use this type of generators for
Keywords : Electrostatic Machine, High Voltage Generator, Van De Graaff Generator, Electrostatic Precipitator, Triboelectric Series, Electrostatic Precipitor.