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Two overhead Lines ‘P’ and ‘Q’ are connected in parallel to supply a load of 10 MW at 0.8 pf lagging. The resistance and reactance of line ‘P’ are 3 Ω and 4 Ω, respectively and of the Line, ‘Q’ is 4 Ω and 3 Ω respectively. The power supplied by the ‘P’ is
  • a)
    6.30 MW
  • b)
    4.46 MW
  • c)
    6.73 MW
  • d)
    5.88 MW
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Two overhead Lines ‘P’ and ‘Q’ are connected i...
Impedance of Line P, ZP = 3 + j4 = 5∠53.13° Ω   
Impedance of Line Q, ZQ = 4 + j3 = 5∠36.86° Ω   


Total load supplied in kVA

Load supplied by Line P
= 6313.45 kVA at pf 0.708
Power supplied by Line P,
P = 6313.45 × 0.707 = 4.46 MW
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Two overhead Lines ‘P’ and ‘Q’ are connected i...
Two overhead lines typically refer to the transmission lines used in electrical power systems. These lines are installed on tall towers or poles to carry high-voltage electricity from power plants to substations and from substations to distribution networks.

The overhead lines are made of conductors, usually in the form of aluminum or copper wires, which are suspended between the towers. These conductors are insulated to prevent leakage of electricity and to protect against weather conditions, such as rain and snow.

The two overhead lines are usually arranged in a parallel configuration, with each line carrying electricity in opposite directions. This configuration is used to balance the load and ensure reliability of the power supply. In some cases, multiple sets of parallel lines may be installed to increase the capacity of the power transmission system.

The height and spacing of the towers or poles supporting the overhead lines are carefully designed to maintain the required clearance between the conductors and the ground, as well as other structures like buildings and trees. This ensures safety and minimizes the risk of electrical faults or incidents.

Overall, the two overhead lines play a crucial role in the transmission and distribution of electrical power, providing a reliable and efficient means of delivering electricity to consumers.
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Two overhead Lines ‘P’ and ‘Q’ are connected i...
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Two overhead Lines ‘P’ and ‘Q’ are connected in parallel to supply a load of 10 MW at 0.8 pf lagging. The resistance and reactance of line ‘P’ are 3 Ω and 4 Ω, respectively and of the Line, ‘Q’ is 4 Ω and 3 Ω respectively. The power supplied by the ‘P’ isa)6.30 MWb)4.46 MWc)6.73 MWd)5.88 MWCorrect answer is option 'B'. Can you explain this answer?
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Two overhead Lines ‘P’ and ‘Q’ are connected in parallel to supply a load of 10 MW at 0.8 pf lagging. The resistance and reactance of line ‘P’ are 3 Ω and 4 Ω, respectively and of the Line, ‘Q’ is 4 Ω and 3 Ω respectively. The power supplied by the ‘P’ isa)6.30 MWb)4.46 MWc)6.73 MWd)5.88 MWCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Two overhead Lines ‘P’ and ‘Q’ are connected in parallel to supply a load of 10 MW at 0.8 pf lagging. The resistance and reactance of line ‘P’ are 3 Ω and 4 Ω, respectively and of the Line, ‘Q’ is 4 Ω and 3 Ω respectively. The power supplied by the ‘P’ isa)6.30 MWb)4.46 MWc)6.73 MWd)5.88 MWCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two overhead Lines ‘P’ and ‘Q’ are connected in parallel to supply a load of 10 MW at 0.8 pf lagging. The resistance and reactance of line ‘P’ are 3 Ω and 4 Ω, respectively and of the Line, ‘Q’ is 4 Ω and 3 Ω respectively. The power supplied by the ‘P’ isa)6.30 MWb)4.46 MWc)6.73 MWd)5.88 MWCorrect answer is option 'B'. Can you explain this answer?.
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