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we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?
1874we the the value of frequency is 50 HZ in DG then why we said the value inductive rectance is zero in DG?
1 3306we know the value of the power factor is 0.8, we know the power factor is not depends upon the load ,then why we cant design the power factor in transformer ?
1 2559How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.
2089Post New Electrical Engineering Questions
how can we say that stator magnetic field rotates with synchronous speed?can we derive?
State ohm’s law?
what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
briefly explain the main blocks found in a microprocessor based system
How to Design green buildings services? What is the advantage to design green building?
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
What is the diffrence (Technical & Construction ) between CBCT & Normal CT?
at what rate the micro controller increment its timer....is it 1micro seconds or 1/(12*10^6) seconds
Which device is used for the source of emission of electrons in a crt?
How to operate a ac chilar plant?
Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT?
Is there any question in the name of Static Switch in UPS??
Which type of DG need Netral Earthing?
What is the Difference between Ac Drives and Dc Drives? According to application, speed, Torque, cost, Reliability, Construction, Motor etc... Thankyou !!!
