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Answer Posted / vin
(i) According to core,
1. Core type.
2. Shell type.
(a) Simple Shell,
(b) Distributed Shell.
(ii) According to winding.
1. Two winding (ordinary type).
2. Single winding (Auto type).
3. Three winding (Power transformer).
(iii) According to phase.
1. Single phase.
2. Three phase.
(iv) According to arrangement of coils.
1. Cylindrical type.
2. Disc type.
(v) According to use.
1. Power Transformers.
2. Distribution Transformers.
3. Instrument Transformers
(a) Current transformer,
(b) Potential transformer.
(vi) According to type of cooling
(a) Natural cooled.
(i) Natural air cooled.
(ii) Oil immersed natural cooled.
(iii) Oil immersed natural cooled with forced oil circulation.
(b) Forced air cooled.
(i) Oil immersed air blast cooled.
(ii) Oil immersed air blast cooled with forced air circulation.
(c) Water cooled.
(i) Oil immersed water cooled.
(ii) Oil immersed water cooled with forced oil circulation.
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