Question { L&T, 60597 }

what is the difference between power and distribution
transformer?

Answer

power transformer is used for the transmission purpose at
heavy load, high voltage greater than 33 KV & 100%
efficiency. it also having a big in size as compare to
distribution transformer, it used t generating station and
transmission substation .high insulation lavel.

the distribution transformer is used for the distribution
of electrical energy at low voltage as less than 33KV in
industrial purpose and 440v-220v in domestice purpose. it
work at low efficiency at 50-70%, small size, easy in
installation, having low magnetic losses & it is not always
fully loaded.

Question { 4505 }

what is the use of CurrentTransformer in AVR ?

Answer

The current transformer is used in AVR for the measurement
of current that used for feedback to the AVR system & also
used for metering purpose.