Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

Question about ct secondaries connections?

Answer Posted / ahmed rahman

in this connections for over current protection,i have a strange theoretical question.
we all see the common wire of the cts secondaries.
in this wire , the 3 currents of the 3 phase pass through it,
i want to know how each current goes back to it's ct without going to another one however it has a way to pass through !
..the second part of my question,,this earth connection also to the secondaries of the cts, why the current doesn't pass through it?? what prevents it? it acts as a short circuit to the earth !!!

http://www.electrical4u.com/images/backup-protection01.gif


http://www.sayedsaad.com/montada/attachment.php?attachmentid=125929

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

hello friends this is krunal here.. i have applied for he officer train in hpcl electrical stream.. any one who have applied before for electrical stream please help me out.. post ur reply to my mail id: krunal_airforce@yahoo.com.. any tips, old questions for paper or any help will do.. plz help me.. your faithfully, Krunal Darji

1938


Advantages of using generator circuit breaker (GCB) scheme in a power station ?

5320


why would amp draw on neutral wire be as much as amp draw on the hot leg.

2143


In vapour absorption refrigeration machine fluids used are

1296


1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.

3414


Which type of DG need Netral Earthing?

5378


HOW TO WORK A VFD?SAY SIMPLE METHOD

4501


What is the need for a controller?

1276


why we get 2 differnet values for power factor in 2 watt meter method in 3 phase

1914


how u measure/calculate renge of capacitor,capacitor has no any rating tag.what is the theory of measure of capacitons.

2034


What should be current in the Primary and secondary side of 1000KVA (11KV Supply)Transformer.?

1113


lorteny method

2043


what is buffer resistance starter.?.What is the working principle and where it is used..?

2080


in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

2764


I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer

1981