Interested to Buy Any Domain ? << Click Here >> for more details...
What is the Difference Between MCCB & ACB & VCB
Answer Posted / anushil
basically by nature of work all are circuit breaker,though selection of CB depends upon the amount of load drawn & potential in line to which breaker needed.as all three have different quenching medium,like (air, vaccum etc)now selection of breaker depends on dielectric strength or quenching medium.
as air is medium for ACB & vaccum for VCB and their dielectric strength are 10^-5torr & 10^-8torr respectively. so VCB have more dielectric strength then compare to air. as because of that selection of breaker depends on the dielectric strength of medium.
ACB (air circuit breaker-630,800,1000,1200,1500,2000,2500,4000,5000 Amp here curent rating is high but voltage is low)is used for LT(415 Volt) Panels as amount of arc generate in breaking of contact is low& strenght needed is 10^-8 torr. now for VCB(vaccum circuit breaker)is used for HT(6.6,11,33KV) Panels as amount of arc is more so we need at least dielectric strenght of 10^-5Torr.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
How may I get the maximum current capacity for a particullar size Alluminum or Copper cable if there is compulsion to use?
which connection is safer series or parallel?usually which connection we prefer at home?
what is servo motor and how to work it.
Z transform is use when system is not a) converges b) diverges
what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors
what is interpose? where it is used and why it is used?
If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.
What is the working mechanism of OLTC in Power Transformers????
need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.
Sate maximum power transfer theorem?
In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?
why can the rotor of 3 phase slip ring induction motor not be a 2 phase rotor?
whats the differece between Exd and Exe
What are the parts in a inverter?
why the rotor current becomes in steady state during high slip region? please verify with equations.
