Do I need a special Transformer to put 240 VAC 3 phase into it and and get 480 VAC 3 phase out of it to run a machine? Or, do I just use an ordinary step down transformer and step up the voltage? Thanks2 3524
what is the principle of vvvf drive motor3 26759
We know that, in case if there is a faulty insulation,or sc, the current is bypassed to earth through the earth wire that has low resistance.Actually, what will happen to that current that flows through gnd?In that case,if we come in contact with that faulty appliance, wont that current flow through us as we form a closed path by standing in gnd?Is grounding a safety measure?3 4165
Hai, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to firstname.lastname@example.org
why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.12 60178
sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to email@example.com
how can you prove that in CE configuration a transistor has 180 degree phase shifted output
hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :firstname.lastname@example.org
HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS email@example.com,firstname.lastname@example.org
How can we measure and monitor critical performance parameters of Diesel Generator Sets, both electrical and engine ?3 8305
hi frnds.....anyone get any reply from HPCL. I HAVN'T.....B,COS written will b on FEB 17 th.
what is the maximum genarating in india?17 35750
WHAT IS THE DIFFERENCE BETWEEN RESISANTANCE AND IMPEDANCE IF IMPEDANCE IS MORE THAN RESISTANCE AT SAME VOLTAGE CAN WE HAVE RELATION DERIEVED BETWEEN THEM4 7423
How to calculate D.C load current?3 29885
Why 9KV surge arrester having 7.65KV of MCOV?
What are the protections for safe running of electric generator?
what is the significance of cabability curve of alternator
Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?
What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?
Is there any guideline say about display of earthing value near to earth pit
List examples of voltage source?
What is the role of power pack in substation protection system?
why 1.7Uo for HV cable Hi pot test?IE standard why?
could anybody able 2 send me jindal steels previous papers fr electrical steam....pls send 2 my id if possible....email@example.com
explanation of mesh bus bars
what is cogging and crawling
various transmission tower like .,D tower ,K.C.O tower ,C.C.O tower,K.C.R tower ,C.C.R tower ,H.C.O tower in different tons.
What is open loop and control loop systems?
How can we calculate the KVA rating of a Distribution transformer from its core details?