I need the expert's solution with an explanation of the reason. 6- The core loss of a transformer depends upon :a) the frequency and the maximum flux densityc) rated currentb) Induced Voltaged) rated voltage7- The no load current in a transformer lags behind the applied voltage by an angle of abouta) 120 degreeb) 75 degreec) 45 degreed)180 degree8- The hysteresis loss in a transformer is 500 watts at 50 Hz. Its loss at 80 Hz will bea) 312.5 wattsb) 500 wattsc) 200 watts9- Power transformers are designed to have maximum efficiency atd) 800 wattsa) nearly full loadb) 70% full loadc) 50% full loadd) no load10- A transformer operates maximum efficiently at 3/4th full load. Its iron (Pi) and copper loss (Pcu)are related as:a) Pi=1.778 Pcub) Pi=1.333 Pcuc) Pi=0.75 Pcud) Pi=0.5625 Peu

In this question, we need to determine the choose the correct option. What is core loss of a…

6- The core loss of a transformer depends upon : a) the frequency and the maximum flux density c) rated current b) Induced Voltage d) rated voltage 7- The no load current in a transformer lags behind the applied voltage by an angle of about

6- The core loss of a transformer depends upon : a) the frequency and the maximum flux density c) rated current b) Induced Voltage d) rated voltage 7- The no load current in a transformer lags behind the applied voltage by an angle of about

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

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Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

Question

I need the expert's solution with an explanation of the reason.

6- The core loss of a transformer depends upon :
a) the frequency and the maximum flux density
c) rated current
b) Induced Voltage
d) rated voltage
7- The no load current in a transformer lags behind the applied voltage by an angle of about
a) 120 degree
b) 75 degree
c) 45 degree
d)180 degree
8- The hysteresis loss in a transformer is 500 watts at 50 Hz. Its loss at 80 Hz will be
a) 312.5 watts
b) 500 watts
c) 200 watts
9- Power transformers are designed to have maximum efficiency at
d) 800 watts
a) nearly full load
b) 70% full load
c) 50% full load
d) no load
10- A transformer operates maximum efficiently at 3/4th full load. Its iron (Pi) and copper loss (Pcu)
are related as:
a) Pi=1.778 Pcu
b) Pi=1.333 Pcu
c) Pi=0.75 Pcu
d) Pi=0.5625 Peu

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