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how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?
1914Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA
1789iam completed my DEEE in eillm university. can i get the c licence in tamilnadu its possible or not
1 3790why 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?
2745What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection
ABB,
3755What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?
3960What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer
ABB,
2308What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current
2309Post New Electrical Engineering Questions
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
How to synchoronize the generator (with gcb,GT) to grid????? ????? from Grid iam getting power (rated 400kv/20kv) through GT and its goes to UAT.,,ST.,, now my generator(rated 20kv ) ready.,, now iam closing my GCB.,, in GT iam suddenly giving 20kv on that Gt.,, what will happend
How to select a cable size for particular load?
In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?
why there using acb enclosure in big buildings
We have two parts in generator, electrical & mechanical. how it works?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
WHAT IS THE WORKING PRINCIPLE OF A GENERATER.how is a GTG (Gas TURBANE Generater) working.plz explane
what is advertised hop count
What should be current in the Primary and secondary side of 1000KVA (11KV Supply)Transformer.?
What are IR values and what it should be for coil and for insulator
1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is
How much should be the load percentage for 15kva Inverter and Iinut & I output load with Calculations
please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com
Is it possible to make a 5P10/ CT Ratio 50/1A Burden 5VA
