Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?917
What happent when a AC motor(no break and starters ) stop and suddenly start . ? Starting current low or high?? Why?1 1299
Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.1 1782
True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)1088
What is hipot test procedure?
What will be the current rating of Main switch for 80 kVAR panel1 1211
If a earth leakage circuit breaker trips is it possible to tell which house circuit breaker (I have four) is the faulty circuit?1 1332
What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?983
What will be MF for below rating ? Main CT PT value is 11kva/110 and 20/5 amp Meter display is 1kva/110v and -/5 amp What will be MF ? Multiplycity factor of energy meter1083
Explain the advantages and disadvantages of thermal power plant?
what is the need of starter in tube light and what type of starter is used in that?
How many Zones can be in Conventional type fire alarm system & how can we detect the fire in Conv. type FAS?
What is the difference between rated and per unit in transformer?
what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct
why do we put a transformer on soak before loading it
WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION
what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?
how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.
sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers
H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....
1sq mm dc powr cable can carry how much dc currnt
Witch do depand of Power factor and theory of power factor?
What does the term power factor shows?
Define phase lag and phase lead?