Question

3) A 3-phase line having negligible resistance and 22 ohm inductive reactance per phase
operates with 110 kV sending –end voltage and 100 kV receiving-end voltage. The
maximum power that this line can transmit as

Answer 1

Answer:

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Answer 2

Concept:

• Power
• Reactance
• Voltage

Given:

• Reactance X = 22 ohm
• Sending end voltage V₁ = 110kV
• Receiving end voltage V₂= 100kV

Find:

• The maximum power the line can transmit P

Solution:

Maximum power P = V₁ V₂/X

P = 110000 V * 100000V/22 ohm

P = 500000000W

P = 500 MW

The maximum power the 3-phase line can transmit is 500MW

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