Why do we need interlocking in a HT metering or Ring main unit switchgear?

0 Answers  

---

How many earthing pits required for diesel generator set ? Why ?

1 Answers  

---

why need to be maintain power factor for industrial customer?

2 Answers  

---

why we use MV panels??? what's r all the needs

4 Answers  

---

insulators advantage in transformer yard?

1 Answers  

---

what is the order of mgnetiation current in a current transformer of 1000A/1A ratio?

2 Answers   Power Grid,

---

is harmonic useful or it distort the alternating quantity?

2 Answers  

---

3phase 4 wire system is more reliable or 3 phase 3 wire systems?

4 Answers  

---

What Should be the value of Vector Surge angle at Tripping and how to calculate it?

0 Answers  

---

What is actual name of Transformer oil.

6 Answers  

---

if we have to design a small transformer of rating 1 kva or 1 mva , how can we design it?

1 Answers  

---

What is the basic principle of circuit breaker?.. I read that it works on electro-mechanical principle... Does it require both electric n magnetic conversion to act?

3 Answers  

---