if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?
1496if two transformers are parallel & both have fault short ckt. impedance of 50KA in each case will it increase or decrease show example?
1 2738-----------means a source which can supply a constant voltage to aload irrespective of the valu of load resistance.
2 3743What is the electrical difference between Earthing Switch (ES) and Maintenance Earthing Switch (MES)?
1 2347how we calculate the knee point of a protection and metering CT and what is the testing procedure.
CS,
1 3440HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.
1621Dear sir, I am working in wind mill division , pls explain Pls explain in details with formula My question is Wind speed 3.5 M/s Gen RPM is 1500 ( 25 K/w Production ) Wind speed 12 M/s Gen RPM is 1500 ( 220 K/w Production ) Why in 3.5 m/s generation was low , why in 12 m/s generation was high , Pls dont explain wind force or wind density , that one already i know For the above question RPM was same why the KW was different Answer : 1. Its depends on the density ( Force ) of the air Sir , Pls explain wit Formula sir
1 3012why stay insulator is not used with stay wire for 11kv Lines. Whereas it is used for LT lines ?
2 12944Post New Electrical Engineering Questions
What is the formula to calculate the rating of a three phase air circuit breaker
To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors
why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points
Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks
What are stable systems?
in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?
Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??
What are the advantages of vscf wind electrical system?
Write the force balance equation of ideal dashpot element.
My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?
How many types of instrument cables are there?
what is meant by 2 within a star in a voltmeter dial?
Where voltage are high and current to be interrupted is low the breaker preferred is:
Differentiate between induced emf and self inductance?
how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?