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IN OLTC we observed "OUT OF STEP" Alarm, we have two different transformer, when both are in parallel this type of alarm observed. what's the meaning of this alarm and why it occurs???
3 21738How to Convert horsepower to kva? what is the three phase formula? email me if u know thanks Rehan smileavail@msn.com
3 10161The current though a branch in a linear network is 2A when the input voltage is 10 volts. If the voltage is reduced to 1 volt, and the polarity is reversed, what is the current flowing through the branch ?
2 8816How to Convert horsepower to kva? what is the three phase formula? explain me if u can Example..i have 50Hp Moter how can i convert in kva tell me formula three phases Rehan Smileavail@msn.com
4 27422high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...
2008dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour
1951Post New Electrical Engineering Questions
explain with diagram how to protect transformers and substations from over current with help of CT's?
Why does amplifier gain reduce?
why we can stote dc? why we cant store ac?
What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.
What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?
If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?
if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side
Is it possible to use a S1 duty class motor for crane application (S4)? If not, why?
Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise carrying amps rating.Please give the solution with a good example.
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
On Which Pressure PRV is operated.
How is magnetic leakage reduced?
What is trip and closing coil in cb? Why need of them
Can you explain about TEE protection scheme?
given data are load current & power factor cable core size? plz any one update the calculation formula
