Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > A synchronous phase modifier suppliesa)both a...
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A synchronous phase modifier supplies
- a)both active and reactive power
- b)both lagging and leading reactive power
- c)inductive reactive power only
- d)none of the above
Correct answer is option 'B'. Can you explain this answer?
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A synchronous phase modifier suppliesa)both active and reactive powerb...
Synchronous phase modifier is a device that is used to control the reactive power flow in a power system. It is connected in parallel with the transmission line and can either supply or absorb reactive power depending on the requirement. Let's discuss the answer option by option.
Option A - Both active and reactive power: This option is incorrect because a synchronous phase modifier can only control the reactive power flow and cannot supply active power.
Option B - Both lagging and leading reactive power: This option is correct. A synchronous phase modifier can supply both lagging and leading reactive power. When the load is inductive, it absorbs lagging reactive power. The synchronous phase modifier can supply this reactive power to the load. On the other hand, when the load is capacitive, it requires leading reactive power. The synchronous phase modifier can absorb this reactive power from the load.
Option C - Inductive reactive power only: This option is incorrect because a synchronous phase modifier can supply both lagging and leading reactive power.
Option D - None of the above: This option is incorrect because option B is the correct answer.
Therefore, option B is the correct answer.
Option A - Both active and reactive power: This option is incorrect because a synchronous phase modifier can only control the reactive power flow and cannot supply active power.
Option B - Both lagging and leading reactive power: This option is correct. A synchronous phase modifier can supply both lagging and leading reactive power. When the load is inductive, it absorbs lagging reactive power. The synchronous phase modifier can supply this reactive power to the load. On the other hand, when the load is capacitive, it requires leading reactive power. The synchronous phase modifier can absorb this reactive power from the load.
Option C - Inductive reactive power only: This option is incorrect because a synchronous phase modifier can supply both lagging and leading reactive power.
Option D - None of the above: This option is incorrect because option B is the correct answer.
Therefore, option B is the correct answer.
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A synchronous phase modifier suppliesa)both active and reactive powerb)both lagging and leading reactive powerc)inductive reactive power onlyd)none of the aboveCorrect answer is option 'B'. Can you explain this answer?
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