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The all-day efficiency of a distribution transformer is .......... the commercial efficiency
- a)the same as
- b)more than
- c)less than
- d)none of the above
Correct answer is 'A'. Can you explain this answer?
Most Upvoted Answer
The all-day efficiency of a distribution transformer is .......... the...
Efficiency of a Distribution Transformer
Definition of Efficiency:
Efficiency is the ratio of output power to input power.
Commercial Efficiency:
Commercial Efficiency is the ratio of output power to input power, where output power is the power delivered to the load and input power is the power supplied to the transformer. It is also known as load efficiency.
All-Day Efficiency:
All-Day Efficiency is the ratio of energy output to energy input, where energy output is the energy delivered to the load and energy input is the energy supplied to the transformer over a 24-hour period.
Relation between Commercial and All-Day Efficiency:
The all-day efficiency of a distribution transformer is the same as the commercial efficiency. This is because the losses in a transformer are constant over a 24-hour period. Hence, the ratio of output power to input power remains the same for both commercial and all-day efficiency.
Conclusion:
Therefore, the correct answer is option A, the all-day efficiency of a distribution transformer is the same as the commercial efficiency.
Definition of Efficiency:
Efficiency is the ratio of output power to input power.
Commercial Efficiency:
Commercial Efficiency is the ratio of output power to input power, where output power is the power delivered to the load and input power is the power supplied to the transformer. It is also known as load efficiency.
All-Day Efficiency:
All-Day Efficiency is the ratio of energy output to energy input, where energy output is the energy delivered to the load and energy input is the energy supplied to the transformer over a 24-hour period.
Relation between Commercial and All-Day Efficiency:
The all-day efficiency of a distribution transformer is the same as the commercial efficiency. This is because the losses in a transformer are constant over a 24-hour period. Hence, the ratio of output power to input power remains the same for both commercial and all-day efficiency.
Conclusion:
Therefore, the correct answer is option A, the all-day efficiency of a distribution transformer is the same as the commercial efficiency.
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Community Answer
The all-day efficiency of a distribution transformer is .......... the...
C. all day efficiency of a distribution transformer is less than commercial efficiency bcuz: commercial efficiency =output power /input power(in kw) but all day efficiency =output energy /input energy (in kwh in a whole day i.e, for 24 hrs) and all day efficiency has core loss or constant loss all the time but copper loss or variable loss only occur when it loaded. so constant loss is not always equal to variable loss in this .. but commercial efficiency will me maximum as variable loss equals to core loss
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