Answer / afridi

mcb acb & vcb difference is in spellings

Answer / bn.abhilash kumar

the main difference is mccb means moulded case circuit
breaker which use ark
quenching device as AIR which is used upto 500 Amps only
ACB:air circuit breaker which use quenching device as air
and used upto 3000 Amps at 415 volts

Mccb is not having a long life ACB is having long life

Answer / ddharampal

wtat is st and pt, ct

Answer / abhilesh kumar

MCCB MEANS MOULDED CASE CIRCUIT BREAKER IT IS USED FOR ARC
QUENCHING AND MEDIUM VOLTAGE

VCB MEANS VACCUM CIRCUIT BREAKER IT IS USED FOR ARC
QUENCHING HIGH VOLTAGE

ACB MEANS AIR CB AND IT IS USED FOR ARC QUENCHING AND HIGH
VOLTAGE

Answer / sathish

MCCb is reliabilty is less
ACB compare to mccb its good
Vcb is more reliability

Answer / r aamir pakistani

MCB is stand for miniture circuit breaker.It is for low
voltages.
MCCB is stand for moulded case circuit breaker. It is for
medium voltages.
ACB is stand for Air circuit breaker.It is for high
voltages.

Answer / kumar t

Mccb is moulded case circuit breaker.
ACB is air circuit breaker.
VCB is vacuum circuit breaker.
MCB is stand for miniture circuit breaker.It is for low
voltages.
MCCB is stand for moulded case circuit breaker. It is for
medium voltages.
ACB is stand for Air circuit breaker.It is for high
voltages.

Answer / pankaj kumar gupta

Mccb is moulded case circuit breaker.
ACB is air circuit breaker.
VCB is vacuum circuit breaker.
But Basic Differnce Is

Mccb use for Low value of current(16A,10A..)
Mccb depend upon Number of Pole
ACB USE FOR PROTECTION IN TRANSMISSON OF POWER IN POWER PLANT
VCB USE FOR PROTECTION IN DISTRIBUTION OF POWER IN POWER PLANT

if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

0 Answers  

Bhel supervision exam question: If 2 generators are working in a network. And if suddenly the field of anyone generator weakens. What will happen in the network? 1. The generator will run as motor 2. The generator will run as motor in reverse direction 3. The generator will take lighter load 4. The generator will take more load

9 Answers   Bhel,

which relay is better , instantaneous or IDMT relay .

2 Answers  

WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?

0 Answers   Schneider,

is there any chart showing the suitable cable size according to AMP and length ? for three phase motors

0 Answers  

why starting current is high and resistance is almost 0 during the starting of motor dc motor...?

0 Answers  

After fault clearing in Tr line, whether the Metering core of CT is comes to normal condition from saturation region & its works as a normal condition?

1 Answers  

Why can't we parallel Voltage transformer secondary circuits?

0 Answers  

Why do we twist copper to make cable?

3 Answers   Bhel, Integrated, MR Cables,

what is the differnce between ac and dc?

5 Answers  

which type of material is used to transformer laminated core?

6 Answers  

all the technical question with answers pleas send your email id ramar_eee@yahoo.com

0 Answers   RRB,