hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
    arrow
    arrow
    arrow
    Which of the following statements is/are true regarding symmetrical balanced three phase supply: 1 Instantaneous values of power in all of the 3 pha
    Question

    Which of the following statements is/are true regarding symmetrical balanced three phase supply:
    1 Instantaneous values of power in all of the 3 phases become zero at same instant.

    Phase displacement between different phases of an n-phase system is (360n) electrical except for the two-phase system.\text{Phase displacement between different phases of an } n\text{-phase system is } \left(\frac{360^\circ}{n}\right) \text{ electrical except for the two-phase system.}​​

    A.

    Neither 1 nor 2

    B.

    Only 2

    C.

    Both 1 and 2

    D.

    Only 1

    Correct option is B

    In a three-phase system, the phase displacement between the phases is 3603=120, and the instantaneous power is constant, equal to three times the power per phase.\text{In a three-phase system, the phase displacement between the phases is } \frac{360^\circ}{3} = 120^\circ, \text{ and the instantaneous power is constant, equal to three times the power per phase.}​​

    test-prime-package

    Access ‘SSC JE Electrical’ Mock Tests with

    • 60000+ Mocks and Previous Year Papers
    • Unlimited Re-Attempts
    • Personalised Report Card
    • 500% Refund on Final Selection
    • Largest Community
    students-icon
    341k+ students have already unlocked exclusive benefits with Test Prime!
    test-prime-package

    Access ‘SSC JE Electrical’ Mock Tests with

    • 60000+ Mocks and Previous Year Papers
    • Unlimited Re-Attempts
    • Personalised Report Card
    • 500% Refund on Final Selection
    • Largest Community
    students-icon
    341k+ students have already unlocked exclusive benefits with Test Prime!
    Our Plans
    Monthsup-arrow