Answer / zahid noor

Make of Breakers available in India are so many, common of
them are L&T, SIEMENS , ABB, CONTROLS & SWITCHGEAR etc
depending upon their technology of collaboration. They are
rated on Voltage LEVELS for which they are to be used &
current capacity.

Similarly Transformers are also in a wide range depending
upon requirement POWER TRANSFORMERS are rated in MVA & make
available are BHEL, CROMPTON, AREVA,BHARAT BIJLEE,SIEMENS
where as Distribution Transformers are very common in have
rating in KVA , available in India are thousands of Brand
of which very common are TESLA,
AWADH,STARPOINT,STARDELTA,MORSONS.
Similarly Generators are also in KVA IN HIGHER RANGE IN
MVA/MW common generators make are kirloskar,Greaves,GIMMCO
ETC.

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how to select cable size?

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what is impedance?

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WHAT IS EXTENDED DELTA AUTOTRANSFORMER? WHERE WE USE THAT?

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