What should be the earthing resistance of an industrial
substation and also What should be the house hold earthing
resistance?

Answer Posted / abhi

for industries it should be less than 1 ohms

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?

2064


why do we not use equivalent voltage source in negative sequence equivalent ckt.

1599


what is per unit calculation?looking for simple and strong explanation thk u

2431


Write the force balance equation of ideal spring element.

767


How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?

877






what are the safety measures of induction motor?

1568


what are the basic insulation levels & what its Unit

1482


As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?

1183


Draw torque - speed curve and load curve of induction motor? mark operating point ?

1513


I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?

1591


Where is servomechanism used?

651


WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?

1701


difference between main metering kiosk and check metering kiosk

2326


Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,

2386


what is the control circuit for operating the clean room air shower

1722