Answer / abhishek pandey

The function of circuit breaker is to protect the power system equipments from the abnormal condition like high fault current flowing through the line due to line-to-line fault or line to ground fault. Circuit breaker breaks the circuit by isolating faulty part from the line and making the equipments safe.
During the normal working condition,the circuit breaker is in closed condition i.e; the fixed contacts and moving contacts present inside the circuit breaker are in contact with each other and allows normal current to flow through it.

Answer / h.m.naveen.gubbi

main function of CB is make and break the circuit, that means in normal operation make and break will done by manually, and in ubnormal condition will tripp automatically.

1.what is the contact resistace of CB ? 2.radioactivity should be mesured with---------?

3 Answers   Power Grid,

---

What is the Difference Between choke & ballast

3 Answers   ABB, ICS Integrated Computer Solutions,

---

What is the advantangeous over SFU (switch fuse Unit) & FsU (Fuse Switch unit) which one is better & application of Both?

2 Answers  

---

DOES A MAGNETIC CIRCUIT CONSUMES ENERGY? IF YES, WHY?

6 Answers  

---

what is meant by excitation current & armature current ? where its produce & how we can calculate ?

0 Answers  

---

I NEED RRB APTITUDE QUESTIONS AND MODEL PAPER,PLEASE SEND MY E-MAIL joo28_eee@yahoo.co.in

0 Answers  

---

what is meant by leading or lagging power factor?like in capacitor power factor is leading and in inductor power factor is lagging

4 Answers  

---

What is different between Metering CTs and Protection CTs?

4 Answers  

---

what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

0 Answers  

---

how to calculate knee point voltage for pt?

1 Answers   Amec,

---

The undesirable property of an electrical insulating material is

3 Answers  

---

how to size a diesel generator set?

1 Answers  

---