Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Chapter 28, Problem 1PP

Refer to the transformer shown in Figure 28-14 and find all the missing values.

Primary E P _ _ _ _ _ I P _ _ _ _ _ E L 4160  V I L _ _ _ _ _ Ratio

Secondary E P _ _ _ _ _ I P _ _ _ _ _ E L 440  V I L _ _ _ _ _ Z = 3.5   Ω

Load E P _ _ _ _ _ I P _ _ _ _ _ E L _ _ _ _ _ I L _ _ _ _ _

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Transferred surge current method is used to find a. Fault in the transformer insulation b. Fault in the Circuit breaker c. Fault in the cables d. Fault in the lines
• If the transformer has N₁=1,000 turns and N₂ = 5,000 turns. What will be the primary Power, (P₁), comparing to the secondary power (P₂)? P1 will be 5 Times lower than P2 P1 is equal to P2 P1 is 50 times lower than P2 P1 will be 5 times higher than P2
a)The voltage per winding of 220V/12V, 60 Hz single phase core transformer is 1V. If the maximum flux density in the core is 1.5 T, which of the following is the cross-sectional area of ​​the core in cm²? 0.0030 0.0060 30 25 50 0.0050 0.0025 60 b) The voltage per winding of 220V/12V, 50 Hz single phase core transformer is 2V. If the maximum flux density in the core is 1.5 T, which of the following is the cross-sectional area of ​​the core in cm²? 0.0030 0.0060 30 25 60 0.0050 0.0025 50
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