what are the different pre- commissioning tests performed on distribution transformer, power cable and switchgear?????
1 4584what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?
1713I am an electrical power engineer and arranged power system for a data center, I installed MCB, ELCB and erthing system TN-C-S. But some times several ELCBs Disconnect circuits at the same time! what may be the reason? (the ELCBs are 25A ,30mA)
9 9328If we connect the capacitor banks for DG set for maintainig the power factor, it will effect to alternator windings??????????
7 9054How can calculate the efficency of the rectifier. input 240V AC, current 5 amps,P.F 0.98, Output is 54 V DC,62.6 A.
10 23449In case of 11kV dual delta bank what are the recommended protections with specific CT / VT requirements? The capacitor bank is to be connected to the main 11kV switchgear from where the H.V.Motors and auxiliary 440V loads.
1 2165Hai I have 2500KVA,Transformer,13.8KV/380.DELTA/STAR.How much load that I can take interms of current?How can I calculate also when I have loads in KW?
L&T,
10 14275Post New Electrical Engineering Questions
I am applying for NTPC examination.Can we please provide previous paper to my mail prasad.chintala108340@gmail.com
what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?
What is process of anneling transformer core
A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE
how to generator maintenance (A Check, B check,Etc)
what is the use of vcb & isolator in substation?
how we sesign the transformer give some specifion regarding design of transformers
when will be the iocl interview results ifaced the interview on september 8 th
In EB metering we face problem kva jump even in no load condition.can any one help to control this
what is conductor constant of raccun conductor
what is booster? and how it is connected in a circuit?
How to design pavement quality concrete by using C.R.C.P Method
What type of pipe material G.I or M.S is used for sprinkler system?
What happened when capacitor connect series in ac circuit?
- two pumps must work with them at the same time but if the first pump start the second pump must delayed for some time to start also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it
