what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?

0 Answers   Bhel,

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I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions

0 Answers   Wipro,

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In the Load Test of 3 Phase Squirrel Cage Induction Motor, 2 wattmeters are used. One of the wattmeter deflects in negative diretion during no load. Why?

1 Answers   CAT,

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OHMS Law is only applicable for ac or dc or both circuiT?.

6 Answers  

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What is sink and source?

0 Answers  

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wath is skin effect?

9 Answers  

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Why scr and igbt used in  ups systeam ????

1 Answers   JLL,

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why PD testing for power cables

1 Answers   Bhushan Power Steel, CSE, Datre Corporation,

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how to select the no. of brushes in a lap winding?

0 Answers  

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Why we Do not connect the windings of the motor in delta? & what would happen if we do that? I mean the winding themselves not the three lines that are coming to the motor?

1 Answers  

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Dear all,recently in our plant we installed a conveyor for this the motor ratings are 5 hp and Amps 7.39.Due to on urgent starting of conveyor we fix the DOL starter with range of 9-15 amps.give me suggestion regarding on this issue

1 Answers  

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In the case of petrochemical area AC drive & AC motor is used where the speed variation is required. Why they are not Using DC drive & DC motors in such areas?

1 Answers  

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