Answer / ritesh mishra

A circuit breaker is an automatically operated electrical
switch designed FOR OPRETE IN ABNORMAL CONDITION I.E. to
protect an electrical circuit from damage caused by
overload or short circuit. &
In an electric power system, switchgear is the combination
of electrical disconnect switches, fuses or circuit
breakers used to control, protect and isolate electrical
CKT.

Answer / ghanshyam_singh

i am satisfied with Mr. Ritesh

circuit breaker,as ritesh said is a protective device, while CB is a part of switchgear.

Answer / balachandhar.a

circuit breaker is a
protective device
used to isolate the
faulty part from the
healthy part of the
system.it is working
by the command
given by the relay
about the fault.and a
switch gear is
nothing but the
combination of
relay ,cb and other
protecting devices.

Answer / arun

switchgear is a group of device that give protection +switching.cb is a part of switchgear

Answer / m.radhakrishnan

Circuit Breaker is switchgear equipment. when short ciruit
condition abnormal current flow in the circuit. To protect
all the equipment in the power system network against
excessive over voltage or excessive current.

Answer / amarendra barad

Hi all,
Ok,But I think CB is a protective device which is designed
for working in noload condition as well as in load
conditions and automatically oprated but SG is also a
protective device which only can be used in noload
conditions and manually oprated.

How can transformer oil be used in transformers with voltage rating above its breakdown voltage?

2 Answers  

how to find number of run for transformer & alternator secondary side? give the example.

2 Answers   Powergear, Regen Powertech,

What is gross error?

0 Answers  

Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???

0 Answers  

WHAT IS METHOD TO DESIGN SIZE OF A 11KV UNDER GROUND CABLE FOR A OUTGOING FEEDER FEEDING 6NOS 250KVA TRANSFORMERS WITH 5KM LENGTH OF FEEDER?

1 Answers  

what is magnetizing current test in power transformer

0 Answers   ABB,

what is a kit kat fuse?

5 Answers   TCS,

What is the ratio of Booster transformer?

0 Answers  

After synchronizing the running generator with grid, the avr getting tripped and the generator breaker also oettong tripped, before tripping the avr the pf meter of generator is showing leading pf please kindly give a suggestion to rectify this problem.

2 Answers   Thermax,

A 3 phase motor, 440 voltage, induction motor. If we take out rotor from motor and if we give supply 440 volt to stator then what happens?????

20 Answers  

what is rotary ups?

2 Answers  

Define magnetic centre in a motor?

1 Answers