is 60hz freq better than 50 hz?&why?

1 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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Transformer's core is made up of which material and why so?

10 Answers   ABB, NTPC,

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What is an 86-P or an 86-A trip

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Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box

0 Answers   Siemens,

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What is the difference between Earth and Neutral?

2 Answers  

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how net resistance islow in star connection and viseversa in delta connection...? if anybody could explain in detail it wud be helpful.

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What is the abbreviation of NGT panel

0 Answers  

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how to check dc current,how to fix ammeter in dc line

5 Answers   Gold Fields,

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What is the difference between voltages or potential difference? And what are they?

0 Answers  

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what is the use of spst switch in performing experiment on self excited dc motor?

2 Answers  

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) why transformer cannot rotate though the principle behind induction motor is similar to a transformer

3 Answers  

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