Transformer
Electrical transformers are machines that transfer
electricity from one circuit to another with changing voltage level but no
frequency change.
Types of Transformers
There are several transformer types used in the electrical
power system for different purposes, like in power generation, distribution and
transmission and utilization of electrical power. The transformers are
classified based on voltage levels, Core medium used, winding arrangements, use
and installation place, etc. Here we discuss different types of transformers
are the step up and step down Transformer, Distribution Transformer, Potential
Transformer, Power Transformer, 1-ϕ and 3-ϕ transformer, Auto transformer, etc.
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Auto Transformer
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Power Transformer
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Protection Transformers
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capacitor voltage transformer
- · Distribution transformer
Current Transformer
A current transformer (CT) is a type of transformer that is
used to measure alternating current (AC). It produces a current in its
secondary which is proportional to the current in its primary.
Current
transformers, along with voltage or potential transformers, are instrument
transformers. Instrument transformers scale the large values of voltage or
current to small, standardized values that are easy to handle for measuring
instruments and protective relays. The instrument transformers isolate
measurement or protection circuits from the high voltage of the primary system.
A current transformer provides a secondary current that is accurately
proportional to the current flowing in its primary. The current transformer
presents a negligible load to the primary circuit.
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