using in R,Y& B PHASE LTSIDE(415V)ct ratio 4000/5 WITH ENERGYMETR OF 1280 REV./KWH,240V.WHAT WILL BE MF OF METRE.
HCC,
1 2581a induction motar has 30-35% exciting current at no load but in transformer it is only 2-3% ofbrated current why any reason?
1 2869in short circuit. test of a transformer 5 to 10% ofvrated voltage is used why??? if we use rated voltafe then what will be?
1 2441in an open circuit. test there is no load curent.. but secondary. ia open then no urrent have to flow but there a smaller current flows why?
4 5044How i can select current transformer and meters for the upgrading the panal..for 200kw to 600kw....i need to select monitoring and protection ct,s and apmpire meter ,kw meter too.
1 2846Post New Electrical Engineering Questions
what are the differant std sizes of cable trenches?
What happens if we run alternator on under frequency?
what is DRP panels?
How much earthing frequency is capable?
what are the parameters plays a major role in Potential transformer Burden calculation??
what is working process of star delta controlling circuit ?
Explain how you intend to work under pressure to meet up with deadline target?
what is rating boiler
What safety precaution are to be taken for avoiding electric hazards ?
Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?
CPC cable .PVC \1C....I want to get sure that type is flexible indoor or to be install on trench. please advice .thanx :)
What is transister define the transister ammiter ,base, colector.
generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...
what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?
why we change the direction of winding in rotor ?how we make the north and south pole?
