why there is a temperature rise at different metal to metal contact at cable lug??suppose cable is aluminium and the lug is copper,than why the temperature rise takes place??

2 Answers   JK Cement,

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HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

0 Answers  

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how many desk top computer can connect to a 25kva 3phase generator?

1 Answers  

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Why an ac systems are preferred over dc systems?

0 Answers  

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why transformer cannot rotate though the princplebehind induction motor is similar to a transformer?

2 Answers   GE,

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what is allowable current flows from phase to ground with out tripping the breaker

1 Answers  

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what is the difference between thyristors and capacitors

2 Answers   DRDO, ETE,

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how work the differential protection relay in details?

2 Answers  

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out of all machines which have highest efficiency and why?

2 Answers  

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why wave traps are placed only at y and r phase?

3 Answers  

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i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com

0 Answers  

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how do you tell if a avalanche button diode is a p or an

1 Answers  

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