8. A factory load consists of the following : (i) an induction motor of 150 h.p. (111-9 kW) with 0-7 p.f. lagging and 80% efficiency; (ii) a synchronous motor of 100 h.p. (74-6 kW) with 0-85 p.f. leading at 90% efficiency; (iii) a lighting load of 50 kW. Find the annual electric charges if the tariff is Rs 100 per annum per kVA maximum demand plus 7 paise per kWh; assuming the load to be steady throughout the year. [Rs 1,96,070]
8. A factory load consists of the following : (i) an induction motor of 150 h.p. (111-9 kW) with 0-7 p.f. lagging and 80% efficiency; (ii) a synchronous motor of 100 h.p. (74-6 kW) with 0-85 p.f. leading at 90% efficiency; (iii) a lighting load of 50 kW. Find the annual electric charges if the tariff is Rs 100 per annum per kVA maximum demand plus 7 paise per kWh; assuming the load to be steady throughout the year. [Rs 1,96,070]
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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8. A factory load consists of the following : (i) an induction motor of 150 h.p. (1119 kW) with 0-7 p.f. lagging and 80% efficiency ; (ii) a synchronous motor of 100 h.p. (74-6 kW) with 0-85 p.f. leading at 90% efficiency ; (iii) a lighting load of 50 kW. Find the annual electric charges if the tariff is Rs 100 per annum per kVA maximum demand plus 7 paise per kWh ; assuming the load to be steady throughout the year. [Rs 1,96,070]
![8. A factory load consists of the following :
(i) an induction motor of 150 h.p. (111-9 kW) with 0-7 p.f. lagging and 80% efficiency;
(ii) a synchronous motor of 100 h.p. (74-6 kW) with 0-85 p.f. leading at 90% efficiency;
(iii) a lighting load of 50 kW.
Find the annual electric charges if the tariff is Rs 100 per annum per kVA maximum demand plus 7 paise
per kWh ; assuming the load to be steady throughout the year.
[Rs 1,96,070]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4e6842f8-2691-4d2e-ae7d-1d9b915b4780%2F9969ae69-a2f6-4431-a41f-e4c45a6b7762%2Fes2bbq8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:8. A factory load consists of the following :
(i) an induction motor of 150 h.p. (111-9 kW) with 0-7 p.f. lagging and 80% efficiency;
(ii) a synchronous motor of 100 h.p. (74-6 kW) with 0-85 p.f. leading at 90% efficiency;
(iii) a lighting load of 50 kW.
Find the annual electric charges if the tariff is Rs 100 per annum per kVA maximum demand plus 7 paise
per kWh ; assuming the load to be steady throughout the year.
[Rs 1,96,070]
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