2- A 100 kVA,3-phase, 50 Hz, 6,600/400 V transformer is A-connected on HV side and Y-connected on LV side. The resistance of the HV winding is 3.5 2 per phase and that of the LV winding 0.02 O per phase. Calculate the iron losses of the transformer at normal voltage and frequency if its full-load efficiency be 95.8 % at 0.8 pf lagging.
2- A 100 kVA,3-phase, 50 Hz, 6,600/400 V transformer is A-connected on HV side and Y-connected on LV side. The resistance of the HV winding is 3.5 2 per phase and that of the LV winding 0.02 O per phase. Calculate the iron losses of the transformer at normal voltage and frequency if its full-load efficiency be 95.8 % at 0.8 pf 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 3.5MCQ: For an ideal 2-winding transformer, an impedance Z2 connected across winding 2 (secondary) is...
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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.
Question
2- A 100 kVA,3-phase, 50 Hz, 6,600/400 V transformer is A -connected on HV side and Y- connected on LV side. The resistance of the HY winding is 3.5 © per phase and that of the LV winding 0.02 Q per phase. Calculate the iron losses of the transformer at normal voltage and frequency if its full-load efficiency be 95.8 % at 0.8 pf lagging.
Transcribed Image Text:2- A 100 kVA,3-phase, 50 Hz, 6,600/400 V transformer is A -connected on HV side and Y- connected
on LV side. The resistance of the HV winding is 3.5 2 per phase and that of the LV winding 0.02
2 per phase. Calculate the iron losses of the transformer at normal voltage and frequency if its
full-load efficiency be 95.8 % at 0.8 pf lagging.
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