A 1000 KVA transformer, it is loaded 400kW for 24 hours at o.8 pf lag . If the iron loss equal 2Kw and total loss equal 10 KW. The all-day efficiency is 1-98.7% 2-97.5% 3-99 % 4- 98.5
A 1000 KVA transformer, it is loaded 400kW for 24 hours at o.8 pf lag . If the iron loss equal 2Kw and total loss equal 10 KW. The all-day efficiency is 1-98.7% 2-97.5% 3-99 % 4- 98.5
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter27: Single-phase Transformers
Section: Chapter Questions
Problem 4RQ: All values of a transformer are proportional to its __________________ ___________________.
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A 1000 KVA transformer, it is loaded 400kW for 24 hours at o.8 pf lag . If the iron loss equal 2Kw and total loss equal 10 KW. The all-day efficiency is
1-98.7%
2-97.5%
3-99 %
4- 98.5%
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