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 Categories >> Engineering >> Electrical Engineering
 
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Question Asked @ Answers Views     Select
can HT cable or HT bare conductor used for LT line? is yes what would be the current rating? wbsedcl   1  996
how many parameters can integrate with fire alarm basically ? schneider   0  107
which course is maximum demand in industry and give me the list of best courses for electrical engineers    1  466
What is meant by Guard relay ?    2  668
what is function of INVERTER    4  614
what is meant by fuzzy logic? what is fuzzification and defuzzification? power-grid   4  4627
what is the difference between fc-tcr and tsc in facts    2  783
which surface is suitable for NEUTRAL GROUNDING ? ntpc   1  887
why we are using2 wave trap in a feeder?    1  699
What is the function of wave trap in an electrical substation?    2  2207
what will happen if a 3 phase motor is connected to a single phase circuit and vice versa?    3  759
why the blede and jow of isoletor demage in substation?explan.    1  262
Is it possible to control the power in transmission lines by remote controlling method?? if yes explain in details???    1  261
do we convert single phase line to three phase at minimum cost?    1  379
In case of motor Power Factor Generally We Apply A Capacitor But How Can We Know That A Motor is Running On Very low Power Factor And What Rating Of Capacitor We Have To Place And Tell Me Conversion Of Micro Farad to KVAR>    1  442
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Un-Answered Questions
 
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Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized. 163
i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not. 121
Explain about 3 phase motor fault current calculation with examples? 397
can i use ups power as a raw power for another ups 98
Why in 6 KV XLPE cable termination kit used and why not in 380 V xlpe cable same is not used 266
what is the difference between earthing and unearth 230
why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them? 183
Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more 168
PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN. 343
what is earth-fault?when it occurs? to check where it occurs what type of test should we do? 211
What is Load sharing of Transformer ? 166
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 2 227
any one please tell taht what type questions will be asked in BHEL interview, i am having interview on 24th Dec, please send this to mail pradeepsistam@yahoo.co.in 151
What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests. 283
TCS IS IT COMPANY THEN WHY DO THEY NEED ELECTRICAL &ELECTRONICS ENGINEERS? 119
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