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6. An industrial load can be supplied from the following alternative tariffs : (i) High voltage supply at Rs 65 per kW per annum plus 3 paise per kWh. (ii) Low voltage supply at Rs 65 per kW per annum plus 3-3 paise per kWh. The high voltage equipment costs Rs 50 per kW and the losses can be taken as 3%. Interest and depreciation charges are 15% per annum. If there are 40 working weeks in a year, find working hours per week above which high voltage supply is cheaper. [55-42 hours/week]

6. An industrial load can be supplied from the following alternative tariffs : (i) High voltage supply at Rs 65 per kW per annum plus 3 paise per kWh. (ii) Low voltage supply at Rs 65 per kW per annum plus 3-3 paise per kWh. The high voltage equipment costs Rs 50 per kW and the losses can be taken as 3%. Interest and depreciation charges are 15% per annum. If there are 40 working weeks in a year, find working hours per week above which high voltage supply is cheaper. [55-42 hours/week]

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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6. An industrial load can be supplied from the following alternative tariffs : (i) High voltage supply at Rs 65 per kW per annum plus 3 paise per kWh. (ii) Low voltage supply at Rs 65 per kW per annum plus 3-3 paise per kWh. The high voltage equipment costs Rs 50 per kW and the losses can be taken as 3%. Interest and depreciation charges are 15% per annum. If there are 40 working weeks in a year, find working hours per week above which high voltage supply is cheaper. [55-42 hours/week]
Transcribed Image Text:6. An industrial load can be supplied from the following alternative tariffs : (i) High voltage supply at Rs 65 per kW per annum plus 3 paise per kWh. (ii) Low voltage supply at Rs 65 per kW per annum plus 3-3 paise per kWh. The high voltage equipment costs Rs 50 per kW and the losses can be taken as 3%. Interest and depreciation charges are 15% per annum. If there are 40 working weeks in a year, find working hours per week above which high voltage supply is cheaper. [55-42 hours/week]
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