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The relation between line voltage and phase voltage in Delta or Mesh connection is?

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The relation between line voltage and phase voltage in Delta or Mesh connection is?

(a) Vphase > Vline

(b) Vphase < Vline

(c) Vphase = Vline

(d) Vphase >= Vline

I got this question in homework.

My enquiry is from Inter Connection of Three-Phase Sources and Loads in portion Polyphase Circuits of Network Theory

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Correct option is (c) Vphase = Vline

The explanation is: When the sources are connected in delta, loads can be connected only across the three line terminal. The relation between line voltage and phase voltage in Delta or Mesh connection is Vphase = Vline.

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