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.

what will happen if i connect the buchholz relay in reverse direction.

1 Answers   MAN,

what is mean by live tank and dead tank in current transformers?

1 Answers  

We are having a 2000KVA DG set. It trips with Over speed and Engne Hot when the mahine is stopped in full speed. How shall I analyse the block load and reverse power.Is the problem related to power factor. The machine which runs on this DG is having all Synchronous motors with incividual Drives.

1 Answers  

in the exciter the power is feeded from battry or control or whatever.and we need it in the generators for the stating . do we need it in the shutdown also?i mean the exciter>

2 Answers   Shell,

plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?

0 Answers  

what are the protecyion of transformer & generators

0 Answers  

I am mechanical engineer,I need Training in Electrical & Electronics ( i.e. three days workshop training ) Where will I get the same Please suggest?

2 Answers  

we have 400kv/6.6kv transformer ,it has total 9 taps on HV side with normal tap on tap no 5.when we took the ratio test we observed that ratio was decreasing from tap 1 to tap 5 and was found increasing from tap 5 to tap 9.What is the reason?if anyone have related document then please send me on the email id ankushbahale@gmail.com......plz plz

1 Answers  

EXPLAIN THE ESSENTIAL FACTORS WHICH INFLUENCES THE CHOICE OF SITE FOR A HYDRO ELECTRIC POWER PLANT

0 Answers  

Is the inductance parameter of transmission line affected by taking the earth into consideration?is the same true for capacitance? Justify the answer.

1 Answers  

what will happen if ac motor given dc supply?

1 Answers  

some meggers have three terminals. wat is the real function of the earth terminal?

2 Answers