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what are the different pre- commissioning tests performed on distribution transformer, power cable and switchgear?????
1 5635what 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?
2353I 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 13087If we connect the capacitor banks for DG set for maintainig the power factor, it will effect to alternator windings??????????
7 12296How 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 27319In 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 3094Hai 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 18218Post New Electrical Engineering Questions
kindly send me 11KV MV motor differential protection procedure by primary injection method.
how works inductive &capacitive sensors?
I want to know how to calculate the size of electricity cable in building?
i have total 8 dg sets for synchronizing and 2 buscoupler,1 sectoin dg no 1,2,3,and 2 sectoin dg no 4,5,6,and last section dg no 7,8 ....if buscupler no 1 and 2 is off mode ..than dg no 1,2,3,will synchroniz of another dg sets?
How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?
hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please krishkumar22@gmail.com
hi, in the event earth grounding is not available in a project, is there any other way to make the elcb work? fyi, i have an instant water heater (6.5kw) installed, however if there is grounding in the heating element inside the heater assembly, i will get grounded. thank you in advance to those who will answer my question.
What is meant by impedance? difference between high & low impedance ?
why the projects getting loss?
What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?
If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")
What is DTR erection?
What is meant by stator? What is meant by rotor?
What is the difference between Static and servo controlled voltage stablizer?
what material is used in capaciter
