Consider the following statements for a three phase AC circuit. Statement 1: In a balanced three-phase system, the line current is always equal to the phase current in a star-connected load. Statement 2: In a delta-connected system, the phase voltage is equal to the line voltage. Select the correct option based on above statements.
Both Statement 1 and Statement 2 are true.
Let's analyze each statement:
Statement 1: In a balanced three-phase system, the line current is always equal to the phase current in a star-connected load.
This statement is true. In a star-connected three-phase system, the line current is the current flowing through each line connecting the load to the source. The phase current is the current flowing through each phase of the load. In a balanced system, the line current is directly equal to the phase current because each line carries the current from one phase only. There is no current sharing between phases.
Statement 2: In a delta-connected system, the phase voltage is equal to the line voltage.
This statement is also true. In a delta-connected system, the line voltage is the voltage measured between any two lines. The phase voltage is the voltage across each phase of the load. Because the phases are directly connected across the lines in a delta configuration, the line voltage and phase voltage are identical in a balanced delta-connected system.
Therefore, both Statement 1 and Statement 2 are true.
Similar Questions
- In a balanced 3 phase circuit, neutral current is always ________.
Important Questions from Three Phase Circuits
The direction of rotation of a three-phase induction motor is determined by its ________.
The real power taken by three-phase load is given by -
A phase sequence indicator rotates clockwise for phase sequence of RYB. If the phase sequence is changed to BRY, it will _______.
If a phase sequence indicator rotates clockwise for a phase sequence of RYB, then what happens when the phase sequence is changed to BRY?
In a star-connected system, the phase angle difference between line and phase voltage is:
