what is the accaptable voltage between neutral to earth & How to reduse the resistance of earth in chemical earthing

4 Answers  

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What is the significance of vector grouping in Power Transformers??

3 Answers  

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How to calculate cable size between battery charger to Battery ?

2 Answers   L&T,

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Can we use shunt trip coil instead of trip coil with protection relay for protection?

0 Answers  

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why we used stone chips under the transformer area..

2 Answers   SSC,

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What do you understand by external characteristics of a d.c. Generator?

0 Answers  

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what is working of no & nc.

8 Answers  

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what is difference between armoured cable and un armoured cable

2 Answers  

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When distance between two pulleys is not fixed, the tension of belt is adjusted by a) driver shaft b) driven shaft c) adjustment screw d) belt

0 Answers   BMRCL,

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Why is reating of t/f in kva but for inverter in kw ?

3 Answers   UPPCL,

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How to calculate the breaking capacity(like 15ka,20ka) of Circuit breaker (MCB,MCCB,ACB)

9 Answers   Career Excellent Sdn Bhd, Neona, Northern Max Engineering, Sps Renewables, Terasaki, UEM,

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For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation

0 Answers  

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