Interested to Buy Any Domain ? << Click Here >> for more details...
What is the Difference Between MCCB & ACB & VCB
Answer Posted / ebrahim.p.b
MCCB-moulded case circuit breaker
ACB-air-blast circuit breaker
VCB-vaccum circuit breaker
their functions are same.......
ACB-These breakers employ a high pressure airblast as an arc
quenching medium.The contacts are opened in a flow of
airblast established by the opening of blast valve.The air
balst cools the arc and sweeps away the arcing product to
the atmosphere.This increases the dielectric strength of the
medium between contacts and prevents from reestablishing the
arc.Consequently the arc is extinguishedand flow of current
is interrupted.
VCB-in such breakers vaccum is used as the arc quenching
medium. Since vaccum offers highest insulating strength,it
has far superior arc quenching properties than any other medium.
| Is This Answer Correct ? | 15 Yes | 2 No |
Post New Answer View All Answers
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection
how could we calculate the no of outgoings from a 800 watt distribution board
What are the effects of adding a zero to a system?
what is feed back and what are feed back amplifiers?
condition Autotrip facia come on control panel of electrical transmission line?
What are n circles?
How colour picturetube works & how many year it will works.
I have c license but I don't know eligibility of Max Kilo Volts under the electrical licensing board.
how to find out 3 phase complex power in per unit in unbalanced system?
how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?
State Maximum Power Transfer theorem.
I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.
What is the size of a 60 watt and 80 watt tubelight?
What is the earth treantment procedure?
