EXPLAIN THE FOLLWING: (1) BANDWIDTH (2) SELECTIVITY (3)
RESONANT FREQUENCY (4) CURRENT MAGNIFICATION
In alternator generally we give DC voltage to field of alternator but field (excitor)produce Ac & converts into DC by rotating rectifier(RR ) then fed to rotor .my question is why we cannot give dc voltage directly to rotor instead of Excitor & RR ?
Why we does earthing for transformer neutral point
HOW TO CALCULATE THE CAPACITOR RANGE FOR LOAD FOR PF IMPROVEMENT? EXPLE:FOR 65 HP LOAD HOW TO CALCULATE CAPACITOR RANGE?
12 Answers Al-Malik, All Star Electric, GEC, Reliance, Universal Industries,
How to select the Cable size for 550 Amps Load without seeing the cable Catalogue?
HARMONICS ARE ALWAYS IN INTEGER LIKE 2ND OR 3RD HARMONICS,NOT IN FRACTION LIKE 0.5 HARMONICS.....????????
What do you mean by Transformer?
9 Answers Hyundai, NTPC, wbsedcl,
Why the rating of dc machine is in HP??/ Do reply guys..Its very important......
What will be the output of t/f supplied with DC sourse?
What are HT & LT Cables? What are their values?
When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?
why neutral is required in electrical system
why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?
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