transformer core are laminated for what purpose?
- 9 Answers
- 37355 Views
- NTPC, I also Faced
- E-Mail Answers
Answer Posted / sharath bimba m
In transformer, the eddy current loss is proportional to
the square of the diameter of the core.larger the diameter,
more the eddy current loss. Hence transformer core is
laminated so that the net effective diameter of the
transformer core reduces and thus eddy current loss can be
minimized.
| Is This Answer Correct ? | 37 Yes | 4 No |
Post New Answer View All Answers
what is the difference betweem star connected motor & delta connected motor?
The shot circuit in any winding of transformer result? Explain
What is the difference between alternator and generator?
Why is the air gap between the pole pieces and the armature kept very small?
how dose servo motor works
i've iocl interview.. if you know the interview process please give me information..
Why do power lines not short out when they fall into water?
If o/p power is doubled by how much does the sound increase
state the working of discharge lamp?
TRAFO 1. WHY BREATHER IS USED. 2. WHY OIL GOES DOWN IN CONSERVATOR TANK. 3. WHY WE ARE TAKING OIL SAMPLE TAKING FROM BOTTOM OF TRANSFORMER. 4. HOW TO CHECK IR VALUE OF TRANSFORMER. 5. WHY OLTC HAVING BUCHHOLZ TRIP ONLY; WHY NO ALARM. 6. OFF LOAD TAP CHANGER OPERATION PROCEDURE. 7. TR. SHUTDOWN / ISOLATION PROCEDURE. 8. WHEN THREE TRS. IN PARALLEL, ONE TR. IS NOT SHARING THE LOAD – WHAT IS REASON AND WHAT YOU WILL DO. 9. WHY TR. HAS OLTC IN HV SIDE. 10. WHAT IS % IMPEDANCE. 11. WHY TR. RATING IN MVA. 12. WHAT IS VECTOR GROUP IN TR. 13. CONDITION FOR PARALLEL OPERATION OF TRS. 14. WHAT IS TERTIARY WINDING. WHERE IT WILL BE. 15. IF TR. TRIP ON BUCHHOLZ OR TAP CHANGER RELAY, WHAT YOU WILL DO. 16. DIFFERENCE BETWEEN OIL TEMP. AND WINDING TEMP. PROTECTION 17. HOW WINDING TEMP. IS MEASURED IN CAST RESIN TR. 18. DIFFERENT TYPES OF FAULTS IN TR. Trafo - Page-1 of 2 19. WHAT HAPPENS WHEN TR. CHARGED FROM LV. 20. WHAT WILL YOU DO IF MEGGER READING SHOWS ZERO BETWEEN LV WINDING AND EARTH. 21. CAN WE INTERCHANGE BUCHHOLZ RELAY OF MAIN TANK AND OLTC TANK. 22. IF THE LINE BETWEEN BREATHER AND CONSERVATOR TANK 23. LOCKED, WHAT WILL HAPPEN DURING LOAD CYCLE. 24. WHAT IS THE FUNCTION OF OIL SEAL IN BREATHER. 25. WHAT ARE LOCATIONS FOR BUCHHOLZ RELAY FIXED IN POWER TR. 26. WHAT ARE CHECKS IN POWER TR. DURING MAINTENANCE. 27. WHAT IS IMPORTANT WHEN WE CHECK OLTC OPERATION DURING MAINTENANCE. Trafo - Page 2 of 2
Can we check ELCB constantly from R1 to R8 phase in 1 no DB?
Explain RLC circuit?
what is transient voltage?
Define liftable weight of a transformer? Does the total weight of transformer include oil weight?
how to check avr of dg set of 125kva
