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Categories >> Engineering >> Electrical Engineering        Suggest New Category      Question  Asked @ Answers Views     select   what is the purpose of %impedance for transformer  3  1178 what is the working principle of soft-starter & how it diff. from VFD ?????????  5  5992 how to select electronic timer(Star-Delta) setting for diff. rating motors  0  149 how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????  0  398 how much current take 16sq mm Cable  2  2204 Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?  0  147 can we transmit power with out cable if it is possible how it is possible.  2  676 What shocks us , Current or voltage?  21  2677 what is power factor? how can we correction the power factor if this is high or low? If anyone know please please send the answer on my email id ( kumarkirshan@in.com )  4  835 What is the difference between Rectifier & Converter? Bajaj   11  4104 Is Softbitonline HT Transformer Design Software is AutoCAD compatible?  1  537 why we are caling 440 volt 3 phase supply instead of 660 volt 3 phase supply? because each phase as a voltage of 220 volt. if anybody know the answer for my question please send it to my mail id. thank you. NEC   3  3524 what is the difference between synchronous & asynchronous generators Emco  1  944 what is leading and laging please in details  3  671 why we define potections of Tourbo generator in Class A & B. GIL  1  189 E-Mail New Answers        Answer Selected Questions        Post New Electrical Engineering Question Prev    1   ... 57   ... 113   ... 169   ... 225   ... 281   ... 337   ... 393   ... 449   ... 505    561   [562]    563  ... 673   ... 729   ... 785    Next         Civil Engineering Interview Questions     Mechanical Engineering Interview Questions     Electrical Engineering Interview Questions     Electronics Communications Interview Questions     Chemical Engineering Interview Questions     Aeronautical Engineering Interview Questions     Bio Engineering Interview Questions     Metallurgy Interview Questions     Industrial Engineering Interview Questions     Instrumentation Interview Questions     Automobile Engineering Interview Questions     Mechatronics Engineering Interview Questions     Marine Engineering Interview Questions     Power Plant Engineering Interview Questions     Engineering AllOther Interview Questions       Un-Answered Questions    Question Views Asked at   Select   (In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered? 97   what is the speed of the darkness? 247 Wipro WHAT IS THE FORMULA FOR CALCULATING CURRENT RATING(DIRECT IN GROUND OR AIR) OF ARMOURED(XLPE) CABLE OF 4C,16Sqmm? 163   How to design harmonic filter at the project stage without nowing the harmonics levels 191   HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com 156   wht is the purpose of the earth electrode other then earthing 130   What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs? 84   Refernce currents are to be generated using refernce cueernts how can this be done 129 Wipro what are the principles of a booster converter? 87   State the formula for overall efficiency of thermal power station 218   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 2 158 KSEB i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size? 74 MTDC E-Mail New Answers        Answer Selected Questions

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