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  

---

Why the colour of insulator is always is chocolate in colour?

1 Answers   MRF,

---

what is the difference between equipment earth and system earth.

1 Answers   Hofincons,

---

Residual voltage & residual current used in which protection?

5 Answers   Qatar Gas, Reliance, Transformers and Electricals,

---

What is a dc motor?

0 Answers  

---

why excitor coil of an alternator can fail

3 Answers  

---

Which of the following plant has less plant factor ? -Nuclear -Hydro -Diesel -Pumped storage

1 Answers  

---

In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

0 Answers   Saint Gobain,

---

WITCH CARDS IN USE IN FIRE CONTROL PANEL.

0 Answers  

---

why substation ratings are multiple of 11 means 11\33 kv substation

6 Answers  

---

What is the different between digital phase converter and ordinary phase converter?

0 Answers  

---

what exactly commisioning work does in electrical site work... LT side?..

0 Answers  

---