hoW to select a CT?

Answer Posted / kapil

it depends on the protection circuitary ratings and the
accuracy u desire for the application. it must supply the
rated current to the relays with the accuracy u desire for
ur purpose,and also copper losses in the CTs should be
minimum so it also depends on the laminations and conductor
material u choose.

Is This Answer Correct ?    3 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Why hydropower stations are preferred solution for meeting peak loads in grids?

575


how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?

2223


What is boucholz relay and the significance of it in to the trformer?

664


We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

1101


What type of a DC motor would you use for a lift?

671






CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

1949


Why derating factor os applied on Cables?

1517


What happens to voltage when current is zero?

775


1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

1531


can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.

4463


what is the main function of capacitors in mccs.

1272


I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.

1344


While HT line put on to activate ACB in low tention panel VCB tripping instantly.why it happens

1590


How to calculate the efficiency of Turbo Generator(Alternator) in general....?

2250


In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.

1137