Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  The hysteresis and eddy current loss of 1-pha... Start Learning for Free
The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80?
Most Upvoted Answer
The hysteresis and eddy current loss of 1-phase transformer working on...
Solution:

Given data:

Voltage (V1) = 200 V
Frequency (f1) = 50 Hz
Hysteresis loss (Ph) = ?
Eddy current loss (Pe) = ?

New data:

Voltage (V2) = 160 V
Frequency (f2) = 40 Hz
Hysteresis loss (Ph2) = ?
Eddy current loss (Pe2) = ?

We know that,

Ph ∝ V1^α f1^β
Pe ∝ V1^α f1^β

where α and β are constants

Therefore,

Ph2/Ph = (V2/V1)^α (f2/f1)^β
Pe2/Pe = (V2/V1)^α (f2/f1)^β

Now, we need to find the value of α and β.

For hysteresis loss,

Ph ∝ V1^1.6 f1^1
Ph2/Ph = (V2/V1)^1.6 (f2/f1)^1
Ph2/Ph = (160/200)^1.6 (40/50)^1
Ph2/Ph = 0.64

Therefore, percentage decrease in hysteresis loss = (1 - Ph2/Ph) × 100%
= (1 - 0.64) × 100%
= 36%

For eddy current loss,

Pe ∝ V1^2 f1^1
Pe2/Pe = (V2/V1)^2 (f2/f1)^1
Pe2/Pe = (160/200)^2 (40/50)^1
Pe2/Pe = 0.64

Therefore, percentage decrease in eddy current loss = (1 - Pe2/Pe) × 100%
= (1 - 0.64) × 100%
= 36%

Hence, the correct option is (a) 32, 36.

Final Answer: Option (a) 32, 36.
Community Answer
The hysteresis and eddy current loss of 1-phase transformer working on...
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80?
Question Description
The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80?.
Solutions for The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80? in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80? defined & explained in the simplest way possible. Besides giving the explanation of The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80?, a detailed solution for The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80? has been provided alongside types of The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80? theory, EduRev gives you an ample number of questions to practice The hysteresis and eddy current loss of 1-phase transformer working on 200 V, 50 Hz supply are Ph and Pe, respectively. The percentage decrease in these losses when operated on 160 V, 40 Hz supply would respectively be (a) 32, 36 (b) 20, 36 (c) 25, 50 (d) 40, 80? tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev