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we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input
NHPC,
2072i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com
RRB,
19391. what is the meaning of bus? 2. what is the dc transformer? How it work 3.what is the function of the serge absorber? 4.How the CT and PT rating calculate/
1 5844How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)
TATA,
3163suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current ?
9 11633Iam deepthi.i completed my b.tech from electrical engineering.i want to prepare for civil services.i dont have much knowledge about these exams,but i have great zeal of cracking exams.plz provide me suggestions to which options i can select for optionals
7 9527i want to know is it possible to generate usefull power by coupling generator with motor & supply gives to motor by battery source then generator generates power. remove the battery source given to the motor & feed the supply from some of the generated power supply to the motor & motor runs continously. generator generate power contnously.is it possible ?
5 8140will the turbogenerator operate on leading power factor with out modification in the stator winding.
3 8870suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current , the rating of motor is 1HP ?
5 9684Post New Electrical Engineering Questions
The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is
percetans
Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?
what is gas turbine intercooling ?
is IS says that neutral should be brought to switch box. and this one is a recomended practice
what is tri state logic gate
In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes
use of choke in APFC panels
Explain about retrofitting of machine tool.
If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.
george phenomenon of synchronous machine
What kind of preventive maintenance are there for transformer?
what are the dimensions for 200 kva transformer plinth (plateform),in which pcc m20 is used..
Why field rheostat is kept in minimum position while armature rheostat at maximum position?
are there rmu for 3 transformer?
