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How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?
ONGC,
3462When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number
TATA,
2176what is demagnetising effect & crossmagnetising effect and how it is related to electrical system?is there any more effects are available or only these two??
1 30235why the rotor current becomes in steady state during high slip region? please verify with equations.
1991I am getting diesel genset 62 kv for my house In addition there are 6 meters of 11kv for the house Lift also being installed for house plot sise 200sq yds total 4 + 2 foloors I want to know how much earthing required how deep it should be
2 4973why the Parameters : Base Voltage & Maximum Voltage can't be equal in value in a VFD (Variable Frequency Drive) ? How much the base voltage would be lower than the maximum voltage ? If 400 V is the 3 phase output of a VFD ... then what should be the base voltage ? thanks a lot
1 3937Post New Electrical Engineering Questions
A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?
why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you
how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.
What are the specifications for conducting earth leakage test as per IEC standard?
I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?
how to size H.T & L.T Panel ?
THERMAL CAPACITANCE IS MEASURED IN..................................................
how to operate and maintenance of 1500 kva diesel generator set
how does high earth to neutral voltage affect electronic equipment?
what kn of disc is used in 33kv,132kv,220kv,400kv,800kv transmission line
what is the function of Moulded case circuit breaker, why it is called Moulded?
what is the importance of earthing system on the generators big capacity and small?
difference between ac series and parallel circuit
How to Decide(calculate) Bush bar size for copper and aluminiam ?
