Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

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Is possible to increase the voltage without using transformer? why?

9 Answers  

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Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

0 Answers   HAL,

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what are the range of memory address in plc for L&T lx7 4A

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How can I communicate with an Areva MiCOM P121 relay by RS485 port? In other word, which command can I send and what information can I have recieved? please send some refrences, please. thanks

3 Answers  

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what is the carona effects meaning in HT line transmmission system

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How can calculate the efficency of the rectifier. input 240V AC, current 5 amps,P.F 0.98, Output is 54 V DC,62.6 A.

10 Answers  

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why transformer rating is expressed in kva.

4 Answers   Electrosteel, L&T,

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What is the tension required for the 25000 CFM AHU belt

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roles of owslaw explain?

3 Answers   BSNL,

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what is working process of star delta controlling circuit ?

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what do you mean by star point.its importance in ct & pt

2 Answers  

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