Question

Delta connected load main line voltage and phase voltage ke bich Kya sambandh Hota Hai​

Answer 1

Answer:

Explanation:

Suppose due to load impedance the current lags the applied voltage in each phase of the system by an angle ϕ. As we have considered that the system is perfectly balanced, the magnitude of current and voltage of each phase is the same. Let us say, the magnitude of the voltage across the red phase i.e. magnitude of the voltage between neutral point (N) and red phase terminal (R) is VR.

Similarly, the magnitude of the voltage across yellow phase is VY and the magnitude of the voltage across blue phase is VB.

In the balanced star system, magnitude of phase voltage in each phase is Vph.

∴ VR = VY = VB = Vph