how to mesure the earth pit value and what is the minimum
value of single earth pit?
Answer Posted / susant kumar acharjya
you can measure the earth pit through meggar.
take two rod of 45 cm . one rod erect 30 mtr from earth pit and connect a cable with that rod and the second end connect at earth of meggar,2nd rod 90 degree to first rod at the distance of 40 mtr from the earth pit again connect with cable and the 2nd of with meggar guard. two probe of meggar connect to the earth pipe . rotate the meggar u wil get les than 1 ohm
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?
how to commissioning the genset with amf panel?
how is the incoming cable size calculated for a given current rating of a panel??
How can get elongation of 2 k.G aluminium, if elongated aluminium dia is 2.5 mm?
why does make gain margin and phase margin on same plot.?
Electrical 'C' license full abbreviation , and full form
how we can calculate chiller required ampear?
along with technical test papers
why electron produce magnetic field when it is in motion?
What is the difference between Droop vs Isoch Control?
How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel
If increased the frequency up to 1000 then what changes shows in voltage?
Why GRR starts from 60% of motor speed why not less than 60%?
can you any one give exact mathematical relation between AC current and DC current?
please send previous exams question papers