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» All about High Voltage Transformer
All about High Voltage Transformer
Today there are various kinds of voltage
transformers
available in market. A high voltage transformer works
with high voltages. Typically, these high voltage transformers
are generally used in power transmission applications,
where voltages are very high sufficient to present a
safety hazard. An example of high voltage transformer
could be microwave oven. It is stated that high voltage
transformers are the "muscle" of oven. Input of 120
VAC is applied to the primary windings, the high voltage
transformer steps up that primary voltage to an extremely
high voltage. Further it is boosted even higher by the
voltage doubling work of the capacitor and diode.
We may not find a universally accepted
definition for high voltage transformer, even though
some industry standards have specified different minimum
voltages. These definitions are usually based on protection
considerations or the voltage where arcing would occur.
It would be quite convenient if high voltage was across
the world established to begin at a good round number.
High voltage transformers are built
to handle prominent amounts of electrical energy in
the rage of 600 to 5,000 volts, although custom voltage
transformers are accessible too. A kind of instrument
transformer, high voltage transformers are regularly
used for metering and safeguarding in high voltage circuits
and the electrostatic industrial and scientific applications.
Because they have the capability to step up primary
voltage to the high voltage, they are often referred
to the power
transformer.
Due to the high voltage and regularity
that it must handle, a high voltage transformer has
considerably different core geometry, winding methods,
and insulation methods those usual current transformers.
For example, factors such as the volts/turn ratings
of the secondary wire, insulating substances dissipation,
and corona level have to be carefully considered.
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