what is the function of a circuit breaker ?how does the circuit breaker function during normal operation of an electrical system

2 Answers  

---

The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?

0 Answers   Ispat,

---

What is the diffrence between an ELCB(earth leakage circuit breaker) and RCCB(residual current circuit breaker)?which has higher degree of safety and why?

2 Answers  

---

How many earthings are provided for a 250KVA distribution transformer?

9 Answers  

---

what is the difference between H.T Or HV lines...?

1 Answers  

---

---

what is the use of tertiary winding?

2 Answers  

---

In a 3 phase system a neutral exists so that any unbalanced currents can flow through it towards earth.... but a phase demands a particular current as per the load attached to it....then where does the extra current come from the goes in the neutral??....I mean in an unbalanced system a phase demands a current as per its load attached....then where does the unbalanced current come from??

1 Answers  

---

what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

0 Answers   ABB,

---

In a d.c current, the power is the product of voltage and current. This relationship does not always apply to effective(r.m.s) values in an a.c circuit. Explain the reason for this.

2 Answers  

---

Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

2 Answers  

---

Why a single-phase induction motor not an inherently self-starting machine?

11 Answers   ETC, Hindustan Shipyard,

---

hi friends iam collecting details about motor,generator & transformer so send some web links to about motor,generator & transformer ,please help me .i need your help.thank u

4 Answers  

---