how to measure the current by compact digital equipment with dislay which fit inside any equipment
1458hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar
1533If excitation will increase, then what will be the effect on power factor? Will it decrease or increase?
4 22162please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in
1537While testing the value of the resistance for the earthing rod, two auxillary rods are connected to the earthing tester.What is the working function of a earth tester?
1509explain why tap changer is always connected to high voltage winding side of the transformer.
10 40888Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV
Bhel,
1743Need help. 3 phase system. Neutral line arced and melted upon connection of connector with 3 phase power. Why would that happen?
4 4985i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle
1494Post New Electrical Engineering Questions
Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?
how to calculate
is oil viscosity affect on motor current?
Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,
Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)
The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?
what is the saturation point of crgo lamination.
How many turns are there in primary winding? (In Transformer)
what is different between relay and plc?
what is a power factor?
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
what is the difference between surge protection capacitor and surge arrestor
what is the purpose of shading ring or shading coil in electrical equipments.
