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 2750a induction motar has 30-35% exciting current at no load but in transformer it is only 2-3% ofbrated current why any reason?
1 3048in short circuit. test of a transformer 5 to 10% ofvrated voltage is used why??? if we use rated voltafe then what will be?
1 2613in 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 5448How 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 3004Post New Electrical Engineering Questions
what is the effect of back reactive power on the generator ?
What is the effect on Power factor and capacitor when your company load is more than 70 % of welding transformer
How line capacitance & line inductance varies with increase in height tower.
What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
What is float cum boost charging system?
why effective resistance should be more than static resistance in transmission line?
What are the roles and responsibilities of electrical engineer in cement plant
State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp
describe the phenomena of vacuum interruption in C.B
How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.
What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?
can any one know is sbi interview based on merit or based on roll number
Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.
describe the Operation of induction generators from bus bars
A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram