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 the leading load.

3. For the balanced negative phase sequence star connected system the phase displacement between line voltage and line current is (30° + ϕ) for an inductive load.

4. The phase displacement between line voltage and phase voltage is 30°.

Which of the above statement(s) is/are correct?