Electrical Transformers and Rotating Machines
4th Edition
ISBN: 9781305494817
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 11, Problem 4RQ
What is a way to increase cooling on a large dry-type transformer used in a unit substation?
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Chapter 11 Solutions
Electrical Transformers and Rotating Machines
Ch. 11 - What are the three main sources of heat in a...Ch. 11 - What is one advantage of shell-type construction...Ch. 11 - How are larger control transformers supplying a...Ch. 11 - What is a way to increase cooling on a large...Ch. 11 - What is one special problem with dry-type...Ch. 11 - What are two types of cooling medium used in...Ch. 11 - Name two functions of transformer oil.Ch. 11 - What type of coolant/insulator is banned in the...Ch. 11 - Name two ways of increasing the cooling of...Ch. 11 - What hazard is involved in water-cooled...
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- What is a special hazard encountered in large industrial transformers used in unit substations?arrow_forwardWhat devices and procedures should be used to clean a dry-type transformer?arrow_forwardWhat factors govern the type of maintenance procedures and the maintenance intervals for transformers?arrow_forward
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