4.20 A 25-KVA, 2200/220-V, single-phase transformer has an equivalent series impedance of Zel = 3.5+ j4.0 referred to the primary side. The transformer is connected to a load whose power factor varies. The core loss is 160 W. a. Calculate the voltage regulation at full load, 0.8 PF lagging. b. Determine the highest value of voltage regulation for full-load output at rated secondary terminal voltage. c. Determine the efficiency when the transformer delivers full-load output at rated secondary voltage and 0.8 power factor lagging.
4.20 A 25-KVA, 2200/220-V, single-phase transformer has an equivalent series impedance of Zel = 3.5+ j4.0 referred to the primary side. The transformer is connected to a load whose power factor varies. The core loss is 160 W. a. Calculate the voltage regulation at full load, 0.8 PF lagging. b. Determine the highest value of voltage regulation for full-load output at rated secondary terminal voltage. c. Determine the efficiency when the transformer delivers full-load output at rated secondary voltage and 0.8 power factor lagging.
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 3.9P
Related questions
Concept explainers
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.
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 4 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Power System Analysis and Design (MindTap Course …
Electrical Engineering
ISBN:
9781305632134
Author:
J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:
Cengage Learning
Power System Analysis and Design (MindTap Course …
Electrical Engineering
ISBN:
9781305632134
Author:
J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:
Cengage Learning