Answer / shanmugakalaivanan b.e eee abu

used for current rating above 100 amperes
its protected by thermal protection .
we can adjust the tripping
overload and short-circuit protection .
its normally used for current protection incoming side

Answer / yogesh raste

The main function of MCCB is to make and break the circuit.
I gives overload, shortcircuit and earth fault protection.

Answer / vikas goswami

Molded case circuit breaker(MCCB)IS used for overload thermal protection,it make the ckt at normal condition & and break at fault condition,it is also used as INCOMMER in control panel at high rating load,the rating of MCCB is to be above 63A.

Answer / v p bahuguna

mccb protected the cable and equpment when short circuted
and ground fault. we can set the trip lable as per system
reuirement.

Answer / pps

to make or break a ckt.

Answer / debashis das

the function of MCCB is used for over load thermal
protection,it make the ckt normal condition and break et
fault condition.

can anyone tel me what is competency of electrical supervisor??

2 Answers   ONGC,

Which type of Oil is used in transformers, & what is its strength?

1 Answers  

if we connect a ohmmeter across shorted capacitor .what will be the reading..will it be zero or infinity

2 Answers  

What is clock position of Transformer?what are the clock positions are there?and what is different of them?

0 Answers   Synergy,

How do we calculate tranmission line losses of a 132 KV tranmsission line. Please give some quick tips?

2 Answers  

How can the direction of a three phase induction motor be reserved

4 Answers  

how to improve my communication skills

7 Answers   Infosys, MAHINDRA, Wipro,

Why do you use an isolator on both sides of the circuit breaker? ( shortly answer)

2 Answers  

how to calculate generator capacity?(kva)

2 Answers   SMEC,

how the arcing is made in ac electric arc furnace? ( between the three electrodes in any sequences or between the electrode & the charge(steel))

1 Answers  

if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.

0 Answers   Power Plant,

what is the speed of the darkness?

3 Answers   Wipro,