Answer / 7anoter4

Usually a vertical grounding electrode –made of copper,
copperweld steel, stainless steel or else-and length of 3-20 m
is driven in earth and the upper end will be exposed in a pit
covered by a lid- about 0.3-0.6 m deep and 0.3 m diameter.
This pit facilitates electrode connection with horizontal
grounding conductor and as a check point of electrode state-
grounding [earthing] resistance measurements and other.

Answer / er. s.manimaran b.e(eee)

it is longest copper bar which is burried into earth .and
its connected to main earth wire of utility.

What is GIS Substation and how it operate? where these type of substation installed?

8 Answers   Power Grid,

---

What is the resistance to be connected for supplying the load of 20mV,1kohm from 20mV supply using rectifier.

1 Answers   Anna University,

---

How to calculate the Airconditioner capacity for a standard telecom BTS shelter?

3 Answers  

---

why the value of k is more in shell typr transformers?

0 Answers  

---

If we have 630kva step down transformer to operation 3 phase motor 150 kva which size of cable is used? at circuit breaker to 3 phase motor or to electrical board

1 Answers  

---

Explain what is clipper and clamper circuits?

0 Answers  

---

which motor is suitable for traction? why?

15 Answers   BCH, KPCL,

---

hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible

0 Answers   Engineers India, Engineers India Limited,

---

I WOULD LIKE NOW WHY WE CANT USE SOME CT FOR MESARING AND PROTECTION

2 Answers  

---

What will be the average KVA rating of Auto Transformer for 75kw 415V , 3phase induction motor

2 Answers  

---

what is the difference between contactors & relay.

2 Answers  

---

why anti pumping relay is not given to tripping coil of the breaker? why only to closing coil?

2 Answers   INEL, Siemens,

---