Answer to Question #283038 in English for srujan

Question

State the real-time applications of Star and delta connected 3 phase balanced loads. Also, derive the relationship between line and phase quantities when a 3-phase balanced star connected load is connected to the 3 phase delta supply.

Answer 1

The realtime application of star and delta connection in a 3 phase is when there is a need for a neutral and 2 separate voltages. Star connection is basically used for an auto transformer in the 3 phase while delta is used for high voltage transmission. This connection of the two is normally applied in distribution transformers.

The relationship between line and phase connection voltages is that the voltage is usually the same.