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In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angular
departure of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc at
full load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 power
factor lag is_____
departure of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc at
full load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 power
factor lag is_____
Correct answer is '-6.9'. Can you explain this answer?
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In an energy meter, the current and flux adjustment of series magnet a...
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In an energy meter, the current and flux adjustment of series magnet a...
Given information:
- Current and flux adjustment of series magnet are in phase.
- There is an angular departure of 50° from quadrature between voltage and shunt magnetic flux.
- The speed of the disc at full load and unity power factor is 50 rpm.
To find:
The error of the disc at 60% of full load and 0.8 power factor lag.
Explanation:
The error of the disc in an energy meter is given by the equation:
Error = (Flux adjustment × Current adjustment) × Speed × Cos(θ)
Where,
Flux adjustment is the adjustment of series magnet flux.
Current adjustment is the adjustment of series magnet current.
Speed is the speed of the disc.
θ is the angular departure between voltage and shunt magnetic flux.
Calculating the error at full load and unity power factor:
Given: Speed at full load and unity power factor = 50 rpm
θ = 50° (angular departure from quadrature)
Error = (Flux adjustment × Current adjustment) × Speed × Cos(θ)
Error at full load and unity power factor = (1 × 1) × 50 × Cos(50°) = 50 × 0.6428 = 32.14
Calculating the error at 60% of full load and 0.8 power factor lag:
Given: Speed at full load and unity power factor = 50 rpm
θ = 50° (angular departure from quadrature)
To calculate the error at 60% of full load, we need to consider the power factor lag. The power factor lag can be calculated using the formula:
Power factor lag = Cos(θ)
Power factor lag at 60% of full load and 0.8 power factor lag = 0.6 × 0.8 = 0.48
Error at 60% of full load and 0.8 power factor lag = (1 × 0.48) × 50 × Cos(50°) = 24 × 0.6428 = 15.42
Therefore, the error of the disc at 60% of full load and 0.8 power factor lag is -15.42.
- Current and flux adjustment of series magnet are in phase.
- There is an angular departure of 50° from quadrature between voltage and shunt magnetic flux.
- The speed of the disc at full load and unity power factor is 50 rpm.
To find:
The error of the disc at 60% of full load and 0.8 power factor lag.
Explanation:
The error of the disc in an energy meter is given by the equation:
Error = (Flux adjustment × Current adjustment) × Speed × Cos(θ)
Where,
Flux adjustment is the adjustment of series magnet flux.
Current adjustment is the adjustment of series magnet current.
Speed is the speed of the disc.
θ is the angular departure between voltage and shunt magnetic flux.
Calculating the error at full load and unity power factor:
Given: Speed at full load and unity power factor = 50 rpm
θ = 50° (angular departure from quadrature)
Error = (Flux adjustment × Current adjustment) × Speed × Cos(θ)
Error at full load and unity power factor = (1 × 1) × 50 × Cos(50°) = 50 × 0.6428 = 32.14
Calculating the error at 60% of full load and 0.8 power factor lag:
Given: Speed at full load and unity power factor = 50 rpm
θ = 50° (angular departure from quadrature)
To calculate the error at 60% of full load, we need to consider the power factor lag. The power factor lag can be calculated using the formula:
Power factor lag = Cos(θ)
Power factor lag at 60% of full load and 0.8 power factor lag = 0.6 × 0.8 = 0.48
Error at 60% of full load and 0.8 power factor lag = (1 × 0.48) × 50 × Cos(50°) = 24 × 0.6428 = 15.42
Therefore, the error of the disc at 60% of full load and 0.8 power factor lag is -15.42.
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In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angulardeparture of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc atfull load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 powerfactor lag is_____Correct answer is '-6.9'. Can you explain this answer?
Question Description
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In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angulardeparture of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc atfull load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 powerfactor lag is_____Correct answer is '-6.9'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angulardeparture of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc atfull load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 powerfactor lag is_____Correct answer is '-6.9'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angulardeparture of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc atfull load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 powerfactor lag is_____Correct answer is '-6.9'. Can you explain this answer?.
Solutions for In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angulardeparture of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc atfull load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 powerfactor lag is_____Correct answer is '-6.9'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
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In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angulardeparture of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc atfull load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 powerfactor lag is_____Correct answer is '-6.9'. Can you explain this answer?, a detailed solution for In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angulardeparture of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc atfull load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 powerfactor lag is_____Correct answer is '-6.9'. Can you explain this answer? has been provided alongside types of In an energy meter, the current and flux adjustment of series magnet are in phase while there is an angulardeparture of 50 from quadrature between voltage and shunt magnetic flux. The speed of disc atfull load and unity power factor is 50 rpm. The error of the disc at 60% of full load and 0.8 powerfactor lag is_____Correct answer is '-6.9'. Can you explain this answer? theory, EduRev gives you an
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