What is the difference between the watt hour meter and Var hour meter in terms of internal connection and work theory . ie "When the meter records watt-hour an when the meter records var hours ??"
13 15861Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????
1 2313A long transmission line is limited by - a)thermal limited b)voltage limited c)stability limited d) L,C limited please explain with proper reason.
1 2569what must be the mf for a meter with the following conditions. line ct ratio-100/1 line pt ratio- 220kv/110v meter pt ratio- 3X63.5V meter CT ratio- -/1 A
1 2618Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............
NTPC,
9 19979Post New Electrical Engineering Questions
Pl. give me checklist for installation & commissioning of machine tool.
What are the material used for inductance coil?
What is “pu” in electrical engineering?
What are all present producing cost of Per KWH of various Fuel?
i want wipro vlsi placement pattern please send me
types of central Air conditioner plant?
which fault is severe and why?between lll fault and lllg fault which fault is severe and y?
can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?
On 400 amp factory load how kvarh capacitors provide
Explain what are inter-poles and why they are required in a dc machine.
how we find transformer capacity by ohm
What is the automatic voltage regulator with servomotor?
standard earthing rating for power line..
THERMAL CAPACITANCE IS MEASURED IN..................................................
What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?