Determine the minimum cable size for a 28A single phase final sub circuit originating from the distribution board supplied by three phase submain. The route length of the final sub circuit is 54 m. Assume 1% voltage drop in the consumer's mains. Submain specification: Cable: 50mm2 4 core V75 copper; Route length 42m; Maximum demand 135A per phase

1 Answers  

---

Earth Is a very good conductor or very good insulator.? If a good conductor then why current donot flow through small piece f earth and if a good insulator then why we use it as return path in lines.???

6 Answers   L&T,

---

explain supply side and demand side energy management with advantages & disadvantages

0 Answers  

---

Which factor decide the colour of the light emitted from a Led?

3 Answers  

---

What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?

0 Answers  

---

Formula to calculate amps rating when we are having only the width & thickness of the coppper ?

2 Answers   BEL,

---

mccb service sittings be done?

0 Answers  

---

What are the uses of lead compensator?

0 Answers  

---

why the secondary winding of the transformer is not open circuited ?

5 Answers   Nepal Electricity Authority, Torrent Pharma,

---

i am getting to neutral earth voltage zero ,is this a perfect earthing ?

3 Answers  

---

what is the difference between between open delta and broken delta?

5 Answers   Reliance,

---

how many stairs have you climbed while you were coming

0 Answers   Bhel, SSB,

---