What is the min and max ohmic value for earthing?

Answer Posted / satya dev ( knight frank)

It is depending on usage
LV- for copmutor/ electronic device --- 0- 1 ohm
for UPS --- 0- 1 ohm
HV - for substaion/ power generating system- 0- 5 ohm

but 0 is not possible.

Is This Answer Correct ?    32 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

1125


Where servomechanism is used?

644


How to configure the drives in PLC, through Profibus commnication. And to how to address it?

2367


Why derating factor os applied on Cables?

1519


we are small scale industry in production of rice & rice bran. Pls let me know how to take contract demand for our industry.. (for information we have total 600.hp)

3477






types of central Air conditioner plant?

1712


What is class ab operation?

643


what are the installation procedure of high voltage power transformer,CT,CB&PT?

1618


what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

1687


what is the difference between general inverter and solor inverter clerly explain plz

1673


HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?

1609


How to calculate the phase to phase clearness of HT /// LT bus bar?????

1602


WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?

1489


Which type of a.c motor is used in the fan (ceiling fan, exhaust fan, pedestal fan, bracket fan etc) which are find in the houses ?

602


What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

1576