if the neutral and ground of ups voltege are connected together in the source itslef then why the voltege b/w neutral and ground comes positive in some other destination inspite of having earth pit. how can we mimmise this?

1 Answers  

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which type of rtd is good for any system,2wire,3wire or 4 wire

9 Answers  

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Explain about relays.. Can we give both AC and DC to the same relay... How it is energising.. Explain its working..

7 Answers   IOCL,

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difference between accuracy and precision

6 Answers   Honeywell, ONGC,

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whatis diference between zero pressure and obsolute pressure

1 Answers   ABB,

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HOW DOES SPECIFIC GRAVITY AFFECT LEVEL MEASUREMENT.

3 Answers  

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need to calculate flow rate with the help of dp range and orifice bore dia and size. range is 0 to 400 inwc and orifice size is 12 inch 150 # rf and bore dia is 7.180 inch. need to calculation for flow rate

0 Answers  

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what are the steps I have to deal with?

0 Answers   ONGC,

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what is bms?

4 Answers   Emco,

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What are the different modes of a contollogix family processor? How they work?

3 Answers   Honeywell, Siemens,

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Why are the uses 24vdc in industries

0 Answers  

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plz give me the logic for how a pushbuttoon can be worked as atoggle switch i m working with allenbradely/micrologix1200/rslogix500

3 Answers  

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