GATE EE · 2020 · EE
Question 21: Electrical Machines
Give it a try, then reveal the answer to check your work.
Question 21
EENAT1 markNeeds review
A single-phase, 4 kVA, 200 V/100 V, 50 Hz transformer with laminated CRGO steel core has rated no-load loss of 450 W. When the high-voltage winding is excited with 160 V, 40 Hz sinusoidal ac supply, the no-load losses are found to be 320 W. When the high-voltage winding of the same transformer is supplied from a 100 V, 25 Hz sinusoidal ac source, the no-load losses will be ________ W (rounded off to 2 decimal places).
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerEXPLORE & PRACTISE
Paper and topic context
See where this question comes from and choose what to practise next.
2020EE
GATE EE 2020 · Paper 1
Electrical Engineering · Original paper archive
- Section
- Electrical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 1 mark
Practise related topics
Explore more previous year questions using this question’s imported topic tags.
electrical engineering
GATE EE previous year questions
electrical power
GATE EE previous year questions
electrical machines
GATE EE previous year questions
no load
GATE EE previous year questions
Comments
Ask a question, share your approach, or help someone understand.
Log in to view the discussion
You’re not logged in. Log in or create an account to see discussions and add comments.