WHAT IS MEANT BY DERATING OF THYRISTOR?
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Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?
why are caluculte transformers or dg's in kva does not caluculate in kw
what is the function of AVR in generator? how the generator maintain the frequency while varies the load?
Does RCCB do the job of MCB? Lets take 16A RCCB. it trips when residual current exceeds 30mA. does it trip in an over current situation, i.e when current exceeds 16A ??
New istallation how many eathing have one transformer? Names of earthing connect places?
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??
what is static excitation and dynamic excitation of synchronous generator,scr excitation is a brush or brushless excitation?
transform oil how going to act like ainsulation purpose
WHY IN THREE PHASE CABLE 440V CURRENT FLOWS IF IN ONE PHASE 230V CURRENT FLOWS ???
why we are called the 4-20ma transducer,not 0-20 ma transducer??
we can conformed the vector group of the transformer. How?
star delta advantage and disadvantage?