engineering recuitment HAL Management & Design Trainee Mock Test 2023 Network Theory Three Phase Circuits
Consider the following statements regarding star connection:
1. In a balanced star connected system line voltage is equal to √3 times of phase voltage
2. The phase displacement between line voltage and line current is (30° - ϕ) for lagging load.
3. For the balanced negative phase sequence star connected system the phase displacement between line voltage and line current is (30° - ϕ) for a capacitive load.
4. The phase displacement between line voltage and phase voltage is 30°.
Which of the above statement(s) is/are correct?
1
1 and 4 only
2
1, 2 and 3 only
3
2, 3 and 4 only
4
all of the above