Answer / seshu

In the protection philosophy our aim is to protect the system under abnormal conditions for which we require tripping of the circuit breaker. So that every circuit breaker having 2 nos Trip coils (for redundancy).Once the breaker closed it has to trip so the monitoring of Trip coil supervision is necessary .In general closing coil supervision is not necessary and it would be additional cost

what is meant by class 1 E in electrical power supply?

0 Answers  

---

what is voltage

7 Answers   TCS,

---

what are the differenc between vcb and sf6 breakers

7 Answers   Google,

---

what is high and low cut off voltage of BB and DG at SPS????????

0 Answers  

---

What is the equivalent circuit of a transformer and its vector diagram?

0 Answers   Bhel, Madhucon,

---

---

how to select fuse rating for a 3-phase motor ???

0 Answers  

---

DC transmission

0 Answers  

---

Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

0 Answers  

---

what is cogging and crawling

2 Answers  

---

In a closed circuit if two 5volt power supplier are connected in parrel what is the current direction in tihs circuit?

1 Answers  

---

what is the difference between 2phase & 3 phase?

1 Answers   NTPC,

---

what are feeder pillars & panels?

1 Answers  

---