200 KVA, single phase two-winding transformer rated 4160/230 V, 60 Hz has primary and second impedances of 0.09 + j 0.9 ohms and 0.02 + j 0.2 ohms respectively. The full-load copper loss is measured to be 5000 W during operations. The core loss is 650 W when a voltage of 2200 V, 50 Hz is applied to the transformer and 210 W at 1200 V, 25 Hz. Calculate: a. The core loss at normal operation and the maximum and full-load efficiency both at 0.9 power factor
200 KVA, single phase two-winding transformer rated 4160/230 V, 60 Hz has primary and second impedances of 0.09 + j 0.9 ohms and 0.02 + j 0.2 ohms respectively. The full-load copper loss is measured to be 5000 W during operations. The core loss is 650 W when a voltage of 2200 V, 50 Hz is applied to the transformer and 210 W at 1200 V, 25 Hz. Calculate: a. The core loss at normal operation and the maximum and full-load efficiency both at 0.9 power factor
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.10P: A single-phase step-down transformer is rated 13MVA,66kV/11.5kV. With the 11.5 kV winding...
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Three-Phase Transformers
Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.
Transformer
Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.
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200 KVA, single phase two-winding transformer rated 4160/230 V, 60 Hz has primary and second impedances of 0.09 + j 0.9 ohms and 0.02 + j 0.2 ohms respectively. The full-load copper loss is measured to be 5000 W during operations. The core loss is 650 W when a voltage of 2200 V, 50 Hz is applied to the transformer and 210 W at 1200 V, 25 Hz. Calculate:
a. The core loss at normal operation and the maximum and full-load efficiency both at 0.9 power factor
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