Answer Posted / durgak
MCB meance Moulded Circuit Breaker also called as miniature
circuit breaker which are small capacity ( low voltage )
breakers and these too are moulded. So MCB is a breaker but
moulded(sealed). The breaker is the term used to a unit
which breaks (opens) the circuit above its rated flow of
current. it has the characteristic and ability to self
operate and isolate(break) the circuit if there is a fault
down the line. Circuit breakers are used to connect the
LOAD to the power circuit(line). Once the breaker has
opened it can not get ON by itself. It is to be actuated
again.Thats why we find a certain breaking capacity value
in MCBs in Kilo Amps.For example for light/fan loads the
MCBs rating is 6Amps which have a breaking capacity of
9Kilo amps whereas power points for ACs need 15Amp MCBs
with breaking capacity of 9 t0 12 Kilo Amps.depends upon
the manufacturers specifications.
As on date best MCBs available in market are:-
MDS,L&T,Siemens. Others of second grade are:-
Havells,Standard,HPL,Indo-Asian.
| Is This Answer Correct ? | 13 Yes | 12 No |
Post New Answer View All Answers
what is the use of expulsition protective gap in 11Kv line.
what is the effect of higher value of GD???
How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm
What is the difference between acs 550 & acs 850
what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.
how we explain parallel paths armature winding?
i need about 10 years of GATE solved papers in pdf format and even mock tests toooo
Ceiling Fan and Storage type water heater. Discuss
Why hydropower stations are preferred solution for meeting peak loads in grids?
how to calculate units consumption for a 12 hp motor /hr.
What are the applications of different multistage amplifiers?Plz also write advantages of these amplifiers? Thaaaaaaaaanx
what is Anti-pumping?
I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?
what is the importance of Partial Dischage test for Electrical Equipments
