Answer / prashant

strictly earth resistance must be zero

Answer / shiva

good earthing less than 3 ohms

Answer / ilango

earth resistance value=0 to 10 to 100 to 1000 ohms

when ur using single phase type of load for a 3.5core power cable .Why neutral is .5 and how much current in the neutral if we consider neutral as a reverse path for three phases.

2 Answers  

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Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?

0 Answers   AVT Natural Products, EMC,

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what is the difference between Inverter and ups

1 Answers   L&T, MTS,

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For 415v,3phase,22kw rating of motor how to calculate MCCB rating

2 Answers   Zigma Technologies,

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what is the earth resistance ?

5 Answers   Bhel, Cummins,

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As all us know that the capacitor panel is connected to improve the power factor when it is PF is low. whether we can connect the capacitor panel on D.G. side(? If it is yes means why?

1 Answers   Aricent, Essar,

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Why does not AC excitation use in rotor of AC Generator instead of DC excitation?

2 Answers   A2Z Group,

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how to calculate slip ring induction motor stator and rotor currents??

0 Answers  

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WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

0 Answers  

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WHAT ARE THE BELT HORMONICS IN AC MACHINE HOW TO REDUCE IT

2 Answers   DRDO,

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Dear Sirs, I am a technical persons.In one of our Electrical Sub- Station, We have installed three numbers of 1250KVA ,11KV/0.415KV Transformer to feed the Factory load. We have found some abnormality. In one of our Transformers the leakeage current from transformer body to earth through earth continuity wire is almost 86 Amp but in other transformer it is (5-10)Amp. where the load current on three phase and neutral are respectively 1360Amp,1400Amp,1370 Amp & 176Amp. So please any technical person help me about the reasons of this situation and how I can rectify the fault. Moreover,I have measured the earth resistance of the Earth continuity wire which is less than 1 Ohm. Thanks Tapas Barua

3 Answers  

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what is the size of cable for 15kw motor and 85 meter cable length using with vfd

0 Answers  

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