why we use stones or rock pieces in transformer area?

Answer Posted / svss

Crushed stone is a highly resistive material and this is
used in substations to protect the operating personal from
touch potential and step potential which may be very
dangerous in case of an electrical fault in the substation.
And the other reasons are it will not allow water
stagnation on top layer, and is not slippery.

Is This Answer Correct ?    32 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the effect of pi controller on the system performance?

715


How shall i select the value of capacitor or inductor in a system?

1536


What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

3217


how the phase convertor changes the no. of phases

1632


why use phase displacement in transformer.and effect of phase displacement on transformer

2438






plz send me the procedure and syllabus for mseb exam

3511


what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

1634


All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?

1291


What is sink and source?

782


A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

1898


harmonics filter

1590


what is vtg limit of earth and neutral at transformer side?

1653


How to calculate ant test the burden of Current transformer

2049


why can we use cosine wave instead of sine in ac supply as both have same rms vale and ripple factor

2157


what kelvin's law ?

1705