Abstract:
The transformer was first produced by Varley ill
1856 by making a bundle of iron wires and then
winding insulated copper wires around it. It is now
produced in capacity up to 800KV class for use in the
alternating current transmission. The transformer is
an essential electrical equipment in power transmission
and distribution, with its demand steadily increasing
as industries expand in respective scales and the
demand for power in general households also increase.
The transformer industry has been rapidly growing,
particularly with the development of large-capacity
generators (l00,000 KW) and electric motors since
around 1910 when such related element industries as
the metal and machine industries began to advance.
However, with the development of the electronics
industry in the 1960s, emphasis has been placed in the
electric equipment industry on such new system industrial
equipment as computers and other ultra-precision
electric control equipment for use in both nuclear
energy and space industries,