Answer / deepak

By earth resistance tester that consist of 2 electrodes
along with its leads.Connect one lead from earthpit to
tester & burry 2 electrodes in earth & connect there
respective lead with tester & then check the earth R. It
should be from 0 to 1 Ohm.

Answer / raghavendran.r

The Above stated answer is true but I would like to add
more to that.there is a technique called as Werner
Configuration Technique where we have in total 4
electrodes.The first and fourth electrode is connected to
Current source and 2nd and 3rd electrode is connected to
voltage source and all 4 are inserted into the earth.And
the data is recorded by a Earth resistivity meter.

Answer / prashant

By meggar

why we are used armed coble for wiring of 3phase motor?

3 Answers   AluChem,

---

can a synchronous motor be made to rotate in a clockwise direction ?

1 Answers  

---

How to write a progrramme to turn ON and turn OFF a motor with a single push button in AB?

2 Answers   HCL, Torrent Pharma,

---

What does VVVF stands for in VVVF drive ? How does it differ from VVF drive?

8 Answers   HAL,

---

What is mean demand of the Plant?

2 Answers  

---

what is difference between differential protection and distance protection and how we calculate the sloop?

5 Answers   OPS, Power Grid,

---

What are the advantages of hydropower?

0 Answers  

---

what will happen if i commission a transformer without connecting the neutral?

2 Answers   L&T, Sail,

---

Why Powers are named in MW?

1 Answers  

---

How to covert the ac to dc and how to control the dc output?

3 Answers   ABB,

---

can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

0 Answers   NTPC,

---

what is the signification of trivector meter? why its name is trivector meter ?

3 Answers  

---