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
In the single-phase, three- winding, transformer, the primary current is equal to lo at the condition of ints there is no load on tertiary windings the current in secondary windings equal to zero the resistances (R1, R2, and R3) in transformer windings are equal the inductances (L1, L2, and L3) in transformer windings are equal.
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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