With the development of cities and electric power
industry, the demand of electrical energy, generation,
transmission, distribution and the voltage levels have increased
considerably. Therefore the power frequency electric field and
environmental impact assessment near / under the high voltage
overhead busbars, incoming and outgoing feeders inside the high
voltage substations (HVS) have caused wide public concern.
Nowadays most research on electric field are concerned with
calculation the electric field distribution around the transmission
lines, insulators and cables but they rarely concerned with its
calculation inside HVS. In this paper, a different type of
calculation is achieved, the charge simulation method (CSM) is
employed to analyze the three dimensional (3-D) electric field
distribution near / under the busbars, incoming and outgoing
feeders. At last, the effects of changing the level of operating
voltage, the space between the phases, the level of calculation
inside HVS is demonstrated.