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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
38187- 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,……..,?
2272How to calculate cable sizes in sq.mm. with using motor KW? Any formula there?
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18 306784I 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.
2031what happen if i connect DYn11 and DYn1 vector group transformer in parrallel?other things are same like votage ration,x/r ratiob etc...
4 32679is there any difference between protection C.T and measuring C.T?if yes then what is the difference?
4 12563Post New Electrical Engineering Questions
What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?
In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]
how we explain parallel paths armature winding?
Is a d.c.compound motor is use as a booster? how?
Why the symbol of register is "zig zag"
Why the field rheostat is adjusted such that the voltmeter reads 380V
How line capacitance & line inductance varies with increase in height tower.
Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .
diff.between servo motor and ac motor
sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com
I am EEE student i want to improve my core side skills.how cn i approach it?
1 Ton is equal to how many watts?
how cables go in and come out for distribution from the feeder pillar box?
Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.
why impedance relay is used for medium transmission line protection
