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Question Asked @ Answers Views     Select
how to calculate the ngr capacity(nutral grounding resistor) divis-laboratories   2  2108
what is mean by tremie concrete    3  1774
what is the difference between delta-delta, delta-star transformer???    3  2248
how to find the capacitance value of the motor while running??    0  142
difference bteween neutral grounding resistor and neutral grounding transformer??    1  1127
which generator is called as brushless excitation generator and why??    3  1490
what is mean by tan-delta tap in the potential transformer??    2  904
what happens when we give supply to the secondary of a transformer ?? for example 415v(pri)/110v(sec)    2  797
why the transmission side of the generating transformer is always star??    4  1202
how to set the overload setting in the thermal overload relay?? is there any calculation in that??    3  2480
how to find the resistance and gap volatage of the diode??    0  159
what is purpose of using neutral grounding transformer in generators??    1  631
what is difference between delta-delta,delta-star transformers ???    2  1540
how to find insulation resistance of a generator(11kv) by theoritical formula??    1  794
how to check the insulation for motor using megger? gsk   1  799
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for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor? 203
WHAT IS DENSITY OF AIR AND PETROL MIXTURE IN 2 STROKE S.I.ENGINE 187
How to know the Signaling Link Utilization for a MTP3B link which carries RANAP? 115
how we calculate the grade of the Bituminous materials.????? 258
bag filter ,monitooringof exection/ co -ordination of site activities format 191
Dear all, how we select the cable size according  to current with or without including different correction factor , is there any direct method for sizing of cable...  12
Which types of quections asked in interview for FORMULATION PLANT (PHARMA) 1535
material cost to cast m20 grade rcc 158
exolain the star delta connection 145
sir iam dng my engg final yr (civil) iam intrested to write group_1 .if we write this exam what kind of jobs we get and what should be the minimum score for us to get qualified and iam having reservation too. 233
hi i am sushil can anyone send me the previous year question paper for AAI(JR.excecutive,electronics)to my email kingston_s007@yahoo.com 171
How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site. 31
What is the maxvoltage drop allowed at any healthy joint at full load ? 17
SOMEONE POST THE MODEL APTITUDE QUESTIONS FOR MRF TYRES PLz pLZ pLZ ..Very urgent 1155
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 2 216
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