what is the relation between Sq mm of wire and its current
carrying capacity?

Answer Posted / chiplonkar

Current carrying capacity of a wire depends on the thermal
properties of the insulation applied over the conductor.
i.e. its temperature withstanding capacity decides the
current carrying capacity. For sending higher currents in a
wire,one must have lower resitance in order to limit the
Heat generated in the conductor.

Is This Answer Correct ?    6 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

when the Transmission and Distribution network where is the "feeder" lines are located? and why should be used in T&D network.....

1262


what does a string of resistors in a series will do?

746


What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

1653


what is the advantage of connecting capacitors in delta than in star?

1636


We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?

1639






in my industry we are using 3 step up transformers for induction heaters..i.e 415/580v and other are 11/440v.in power consumption does a step trnsformer makes any difference compared to step up?? plz explain

1435


What are your personal skills and abilities for such a Master Course and your possible preparation to undertake this course?

1576


A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

1884


in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4

1633


Sir, plz tell me how droop setting is done in parellel operation od DG set ? please give practical example ?

1681


Anybody know how schematic diagram for reverse power relay? RPR for generator protection

1667


Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

2238


What is the difference between line drop and percentage line drop?

1075


For overhead protection we use which transformer?

1947


what is meant by 3rd hormonics ?

1401