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A 100/10V, 50VA double winding transformer is converted to 100/110V auto- transformer. What is the ratio of the auto-transformer? * 100VA 500VA 550VA 110VA The daily variation of load on a 100 kVA transformer is as follows: 8:00 am to 1:00 pm - 65 kW, 35 kVAr; 1:00 pm to 6:00 pm – 80 kW, 50 KVAR; 6:o0 pm to 1:00 am

A 100/10V, 50VA double winding transformer is converted to 100/110V auto- transformer. What is the ratio of the auto-transformer? * 100VA 500VA 550VA 110VA The daily variation of load on a 100 kVA transformer is as follows: 8:00 am to 1:00 pm - 65 kW, 35 kVAr; 1:00 pm to 6:00 pm – 80 kW, 50 KVAR; 6:o0 pm to 1:00 am

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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A 100/10V, 50VA double winding transformer is converted to 100/110V auto- transformer. What is the ratio of the auto-transformer? * 100VA 500VA 550VA 110VA The daily variation of load on a 100 kVA transformer is as follows: 8:00 am to 1:00 pm - 65 kW, 35 kVAr; 1:00 pm to 6:00 pm – 80 kW, 50 kVAr; 6:00 pm to 1:00 am - 30 kW, 30 kVAr; 1:00 am to 8:00 am – No-load. This transformer has no-load core loss of 270 W and a full-load ohmic loss of 1,200 W. Calculate the copper loss for 24 hours. * 9.1 kWh O 11.1 kWh O 10.1 kWh O 12.1 kWh
Transcribed Image Text:A 100/10V, 50VA double winding transformer is converted to 100/110V auto- transformer. What is the ratio of the auto-transformer? * 100VA 500VA 550VA 110VA The daily variation of load on a 100 kVA transformer is as follows: 8:00 am to 1:00 pm - 65 kW, 35 kVAr; 1:00 pm to 6:00 pm – 80 kW, 50 kVAr; 6:00 pm to 1:00 am - 30 kW, 30 kVAr; 1:00 am to 8:00 am – No-load. This transformer has no-load core loss of 270 W and a full-load ohmic loss of 1,200 W. Calculate the copper loss for 24 hours. * 9.1 kWh O 11.1 kWh O 10.1 kWh O 12.1 kWh
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