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Topic :: Copper





Copper Interview Questions
Questions Answers Views Company eMail

What current can be carried by 25 sqmm copper cable safely?

Bharti,

6 11415

how can I make the copper get white bye any salt or acit?

2148

if transformer core is made of copper instead of steel which losses will increase..please explain

Bhel,

5 16823

how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?

1968

Why have to use copper cable for local isolator to motor ?

2042

Can we use same copper cable for both AC & DC power.

3 5659

If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

Bajaj,

2158

why core losses and copper losses does not depend on power factor?

5 22245

HOW TO DESIGN THE body EARTH cable(Copper Conductor) size for 60KVA UPS?

ANZ,

1948

What is 2P*0.5 sqmm screened copper cable and what is the use of it..?

1 3477

how do we select a copper power cable for a 10 HP, 1440 rpm, 440V, 3 phase AC motor?

Rolling Mill,

4 12508

Why only plate(copper) Earth pit given for neutral earthing? why not pipe(G.I) Earth pit?

1 4806

How can calculate the earthing strip of Copper/GI for rating of 30kV,discharge current 10KA Lightning arrester.

Raychem RPG,

2264

IN 3 PHASE INDUCTION MOTORS SOMETIMES COPPER BARS ARE PLACED DEEP IN ROTOR WHY..?

ONGC,

3 11449

Why did lightening arrestor solid copper rod head is sharp on mobile tower top?

1954




Related Topics


Un-Answered Questions { Copper }

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

2074


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

1811


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

2062


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

2304


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...

1923


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

2744


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)

1917


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

3387


what is the current density of copper & alluminium.

1997


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

1903


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

1961


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.

5333


why copper is a bad conducter at low temperature?

1801


caurren capacity calculator of Copper and aluminium wire

2097


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.

2414