Is reverse power relay of generator operate due to voltage variation problem? please clearify.
1 2769two TG running in parallel at equal load.one TG CB tripped in reverse power relay.after tripping found its excitation was on & turbine running at rated speed.Please clearify why that TG tripped in reverse power ?
1 2323what are the applications of transistors with low dc gain, high dc gain and medium dc gain( beta)?
1285is any body explain me why return current in three phase power system is less then in a red, yellow, blue phases??? as we know Ir+Iy+Ib=In then why nutral wire has less then phase current????
2 4730I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.
1688Post New Electrical Engineering Questions
Why field rheostat is kept in minimum position?
What is a slack bus?
In ACS 1000 drive we are using 12 pulse converter,why don't use 3 pulse converter.
what is the transformer turn ratio formula and give some examples?
why should small green grass ans small plant should not be there inside the transformer Yard in the factories
what is a vector protection in transformer
There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2
What is pd controller?
mention hazard experienced during installation
The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.
what r PID controllers?why they r used?what is there purpose?plz Explain in detail
We have 5 Distribution sections with variable loads&We have 3 Gensets(500kva,380kva&250kva) our total load is between 400kva to 600kva. so how could we connect 3gensets.
Classify milling machines.
What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.
3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........
