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Electrical Transformers and Rotating Machines
4th Edition
ISBN: 9781305494817
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 11, Problem 7RQ
Name two functions of transformer oil.
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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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- Power supply data should include the followinginformation: A. ____________________ B. ____________________ C. ____________________ D. ____________________arrow_forwardWhat is parento efficiencyarrow_forwardWhat is the primary consideration for personnel performing transformer maintenance?arrow_forward
- What amount of water in transformer oil is considered acceptable for units operating at less than 288 kV?arrow_forwardVoltage can be described as ____________ .arrow_forward2. A three-phase generator runs at 1200 rpm and its electricity has 60 Hz. How many pairs of poles does this generator have? 3. What is the number of poles per phase in the generator in problem 2?arrow_forward
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