Answer / pradeep kumar dhar

The resistance value varies according to the nature of the
soil.It is very high for rocky soils.A value of 1 ohm or
less is considered to be very good.Several pits are
interconnected to reduce the value of earth resistance.

Answer / shri..

It should be bellow one ohm

Answer / vikram

The resistance value depanded to the nature of the
soil.The resistance value is very high for Hill area. when
resistance value of lessthan 1 ohm this value is very good.

Answer / parmod kumar

The resistance value of Earth Pit should below 1 Ohm &
Earth pit are connected to reduce the earth resistance
value.

Answer / ajoy kumar

In some cases like rocky soil, the resistance value of individual earthpit become more than 5 ohms. For these cases, we can consider the combined earthing and it should be atleast less than 1 ohm.

Answer / &

the earth resistance
more than 1. and any
switch yard
maintain...earth
resistance below 3
meter, with the mat
giiii

what is earthed and inearthed cable or system?

1 Answers   CCCL, L&T,

which INDIAN STANDERD in Mention the earth test value?

1 Answers  

what are the breakdown voltage rating of mini- curcuit'transfarmer!

0 Answers  

What will happen if 230V DC motor connected to 230V AC Supply?

15 Answers   Ashok Leyland, BOC, JSW, ONGC, RRB, TRB,

How can we save theft of wire after finishing of wiring work, plz suggest another answer other than security or supervisor's work?

1 Answers  

What are the advantages of nichols chart?

0 Answers  

hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

0 Answers  

what is the effect of un-synchronized power.

0 Answers  

What is inrush current? how can calculateit? what is the affect of it?

0 Answers  

how to enter inverter parameter? without manaual?

0 Answers   Essar,

why voltage rating not mention at HPSV or HPMV lamps?

2 Answers   OPS,

can any one explain about when EB supply failed then how the load will transfer onto DG's step by step.

1 Answers