Topic :: Copper





Copper Interview Questions
Questions Answers Views Company eMail

16sqmm copper cable carrying how much amps ?

1081

We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

1260

How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?

1 1769

Is the nyquist theorem true for optical fibre or only for copper wire ? Explain.

2760

does water content by KF will calculate only external moisture absorbed or the ligand ? (for ex copper sulphate pentahydrate)

NA,

1436

we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor

963

The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?

1814

Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

922

Why we make body earthing of transformer and what will be the size of the copper wire for this purpose related to KVA Capacity of the Transformer as per code.

988

Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?

1300

A fold density is 19 times greater than the water and for copper it is 9 times.At what ratio you can mix gold and copper to get 15 times denser than water.

Hexaware,

790

Which conduct faster heat among steel, copper and brass?

GM General Motors,

615

What is the metal used to extract copper from the solution of copper sulphate?

661

What is the effect of addition of zinc in copper? What is the use of 70/30 brass ?

649

Why is the statue of liberty made of copper?

657




Related Topics


Un-Answered Questions { Copper }

How to Decide(calculate) Bush bar size for copper and aluminiam ?

1694


What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

1422


HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?

1575


What is the gross weight to copper ratio in slip ring induction motor of 4000 HP,6.6 kv, 372amp, 992 rpm GE motor.

1917


How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...

1491






what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA

2321


how to avoid electrical shock how capacitor store charges wat are the speed control of induction motors state faradays law flemings left hand rule what is rotary converter wat is transmission and distribution what are the sources of energy abrevation of acb,vcb,sf6,igbt what is output equation of transformer which test copper iron and iron loss are calculated what is eddy current draw a single line diagram (10 marks) draw direct online starter(10 marks)

1449


What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

2966


what is the current density of copper & alluminium.

1510


What is the formula to calculate the size of Aluminium and copper cable?

1468


Why do we use copper cable for HT Supply and why not Aluminium?

1536


How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.

4960


why copper is a bad conducter at low temperature?

1432


caurren capacity calculator of Copper and aluminium wire

1718


What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

1942