5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch
33517- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
1767How to calculate cable sizes in sq.mm. with using motor KW? Any formula there?
Aswani Properties, BRB Cable, Construction, Hitachi, L&T, Microcool Systems, Nahar, NWPF, Reliance, Renault, Saha Bright Polytech, SGH, TATA, Techno Electric and Engineering, TFIL, Thermax,
18 300339I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.
1496what happen if i connect DYn11 and DYn1 vector group transformer in parrallel?other things are same like votage ration,x/r ratiob etc...
4 30813is there any difference between protection C.T and measuring C.T?if yes then what is the difference?
4 11007Post New Electrical Engineering Questions
1.main parts of generator? what is used A-check,B-check,C- check? 2.what is FM200 system in data centers? 3.difference between pac,ahu?
how to select rating of HT Panel
Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?
describe the Operation of induction generators from bus bars
WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???
Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?
Is it possible to use a S1 duty class motor for crane application (S4)? If not, why?
how to calculate cable size in diffrent loads?
WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....
why is control bus bi-directional?
what is formula to cal cute earth pit numbers and size of earth strip used in earthing?
IF I KNOW THE AREA OF CROSS SECTION OFTHE WIRE , WATTAGE OF THE LOAD ,VOLTAGE SUPPLY WHAT IM GIVING TO THE LOAD AND ALSO POWER FACTOR OF LOAD ....... SO GIVE ME FOR WHAT AMOUNT OF CURRENT I SHOULD USE WHICH TYPE OF CABLE?
why should small green grass ans small plant should not be there inside the transformer Yard in the factories
Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.
why we are not giving the zone 1 trip command to the master trip relay
