Answer / guest

VACCUM CIRCUIT BREAKER

Answer / nadarajan v

vcb means vaccum circuit breaker used in ehv power station.

A circuit breaker in which a pair of contacts is
hermetically sealed in a vacuum envelope; the contacts are
separated by using a bellows to move one of them; an arc is
produced by metallic vapor boiled from the electrodes, and
is extinguished when the vapor particles condense on solid
surfaces.

Answer / meenakshi

vacuum circuit breakers. these are the circuit breakers
which are used to protect medium and high voltage circuits
from dangerous electrical situations.

what is Harmonic effect?

2 Answers  

---

what is the difference between cable routing and scheduling?

4 Answers   Techno Labs,

---

If load current is 70amps or 50amps what range of CT to install for ampere metering

3 Answers  

---

Why the design of electromechanical energy conversion machines is based on the medium of conversion as megnetic field not as electric field?

2 Answers  

---

in dc shunt generator field is open in running condition what will happen?

8 Answers   century,

---

Why we Specify Transformer rating 433 V Instead of 415V ?

8 Answers   ABB, ERA, Uddans,

---

how calculate busbar size for rated amps, which formula use

2 Answers   Rites,

---

how to remover corona effect and hysteresis losses from contactor

0 Answers  

---

What is meant by Active and reactive power?

23 Answers   College School Exams Tests, Schneider, Torrent Power,

---

i have need all detail above basic transformer question..

0 Answers  

---

where used of HVDS system.

3 Answers  

---

in fuel level controller what is MOV please define.

2 Answers  

---