Answer / k.prakashchandra

Differential relay compares the correspondig currents of
the same phase on both sides,where REFR compares the
unbalanced current of the phases with the current in the
neutral

Power factor =1.000 at factory in supply. However, PF = 0.8 at motor end. Current = 100 Amp, Voltage = 400 V. What is the power distribution loss? Can I reduce it by adding capacitor at the load feeder?

0 Answers   Accenture,

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what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?

0 Answers  

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int a,b ; a=b=10 ; if(a>b){ printf ("%d",a)}; no error output is a=10

2 Answers   TCS,

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From an electrical motor & electrical generator, which has more efficiency & why?

1 Answers   Sahi,

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generaly all power generating devices is expressed in KVA or MVA then why power ststion is expressed in MW

6 Answers  

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Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

0 Answers  

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Why is it that variation allowed in supply voltage to motors is (+ or -)10 %, whereas that in frequency is (+ or - )5 %

3 Answers  

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for ac networks if the voltage wave form is V=Vm sinwt here the voltage Vm=230 for the frequency 50hz then the time period is 0.02 sec then for the time period 0.12 sec what is the voltage

4 Answers  

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HI, I want to buy a new Xformer to my plant. what are the main parameter should I check ( Xformer rating is 16 MVA)

2 Answers  

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Why battery is always operate on dc supply?

1 Answers   Vikram Ispat Industries,

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if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

0 Answers  

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what is surge impedance loading and it's significant in power system?

2 Answers  

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