Answer / nagendra

Whenever a fault occurs the circuit breaker trips.Reclosing of the breaker automatically when the fault on the system cleared is known as auto reclose system in circuit breakers

Answer / raul

basically there r 3 types of faults..... transient fault
(80%), semi-permanent fault (12%) and permanent faults
(8%). transient fault occurs only for a small duration, the
CB is opened for a short duration of time so dat d cause of
failure is cleared and the line is re-closed by closing the
CB. for semi-permanent faults which r basically due to a
twig falling on d line or a bird spanning around a
conductor.......the auto-reclosing after the cause is burnt
away.........and finally the permanent faults ie single
phase permanent fault n 3phase permanent fault.....for 1-
phase fault, the remaining two phases r operational n the
faulted phases is taken out for repairs n after d repair is
done the line is reclosed n for the other 3-phase fault,
the complete 3-phases r taken off for repair n after d
repair is done, all d 3-phases r reclosed

Answer / vinod

Auto reclose is using in transmission line circuit breaker
with selection of single phase, three phase or single and
three phase.

In transmission line there is chance of momentery fault,
based on the area and lenth the time and times of auot
reclose being selected.

Answer / tarun purohit

When any fault occures in line,the circuit breaker trips the supply off to the line.This is called the auto reclose system in Circuit breakers.

What is the difference between double compression

7 Answers   Bhel, Hyundai, Orchid Chemicals and Pharmaceuticals, PDO, Prefamac,

---

According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

0 Answers  

---

1) Can anyone give me a typical value for Insulation Resistance of 11kV xlpe cable? 2) How much will the IR value decrease per KM of cable length added?

1 Answers  

---

How to calculate mf when meter equipment and meter are connected

0 Answers  

---

how to set relay setting? and example calculation...

0 Answers   JSW,

---

Will u plz give me simple diagram for tube light connection & also function of chock?

8 Answers   Bhushan Power Steel, Dalmia Group, Jindal, Practical Viva Questions, TCS, Windmoller,

---

What is turbocharger in a generator?

2 Answers  

---

What shall be the minimum distance to be maintained between two power cable in a common trench?

3 Answers  

---

Why the wave trap is put in Y phse only in switchyard?why not in other phases?

1 Answers  

---

What is CCT (Correlated Color Temperature) ?

0 Answers  

---

What is the need of black rock stones under the transformer yard?

5 Answers   TNEB Tamil Nadu Electricity Board,

---

what is the advantages og idmt relay over magnetic relay??

0 Answers   Bhel,

---