Calculate the efficiency at 3/4 load, 0.9 power factor

Assignment Help Chemical Engineering

Reference no: EM131113740

The efficiency of a 400-kVA, single-phase, 60-Hz transformer is 98.77% when delivering full-load current at 0.8 power factor, and 99.13% with half rated current at unity power factor. Calculate:

(a) The iron loss.

(b) The full-load copper loss.

Reference no: EM131113740

Questions Cloud

Find the power factor at the high-voltage terminals : If the transformer is supplying full load at 230 V and 0.8 lagging power factor, determine the voltage regulation of the transformer. Also, find the power factor at the high-voltage terminals.

What are the key provisions of law : What are the key provisions of law that are at the center of this debate? Which interest groups and individuals are active on both sides of the debate on this issue, and what specific interests are they attempting to promote

What is the dependent variable and how is it measured : Was the case justified? Why or why not? (Be sure to support your answer with reference to the strengths and weaknesses of the design, and consider possible confounds.) What kind of study is this? What are the problems associated with this kind of s..

Define and explain the fourth amendment : Write an executive summary in which you define and explain the Fourth Amendment. and Continue the Executive summary with a discussion of the English common law background of the Fourth Amendment

Calculate the efficiency at 3/4 load, 0.9 power factor : The efficiency of a 400-kVA, single-phase, 60-Hz transformer is 98.77% when delivering full-load current at 0.8 power factor, and 99.13% with half rated current at unity power factor.

Stallman company took a physical inventory on december 31 : Stallman Company took a physical inventory on December 31 and determined that goods costing $200,000 were on hand.

Define the term quality and list down : Every production process targets at quality. Define the term quality and list down any factors that affect the quality of a product.

Customer-based inventory management strategies : Customer-based inventory management strategies allow the use of different availability levels for specific customers. Discuss the rationale for such a strategy. Are such strategies discriminatory? Justify your position.

What reforms to our bail system do you recommend and why : What are some of the social and economic consequences of pretrial detention? What reforms to our bail system do you recommend, and why

User Account

All Pages