Answer / abdul wajid

The standard earthing for 440V system is less than 1 ohm ,
for 33000/440V the standard earth resistance is 5 ohm

Answer / saic~ehvvibes

Earthing resistance standard values:

Without Grid (Individual Earth Pit) = Less than 01Ohm
With Grid = less than 05Ohms

what is mcb

7 Answers   L&T,

---

why we decide alternating wave form in ac system and not in dc system

2 Answers   GMR,

---

what is the formulae for calculating the cable size for a given voltage and current.

4 Answers   Bharat Forge,

---

What is meant by Low Resistance Cable and High Resistance Cable.

0 Answers  

---

What is the physical significant of power factor?

0 Answers   Cooper,

---

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

0 Answers  

---

HOW MANY TYPES OF FUSE?

0 Answers  

---

What is the use of choke in tube light?

5 Answers  

---

What is meant by SPS Aluminium pipe in substations? Anyone knows whats this?

1 Answers   Amec,

---

how we can calculate which capacity capacitor bank we have to add for improve pf?

3 Answers   Consultancy, JM Huber, Torrent Power,

---

The screw thread commonly used for transmission of motion is one of the following types of threads

0 Answers   Caterpillar,

---

1.what is difference between line,neutral and earth 2.IF single phase voltage is 230v ac and what should be the voltage between line to neutral,neutral to earth and earth to line

1 Answers  

---