MCB - Miniature circuit breaker is used from 1A to 100 Amps
rating. which is only magentic tripping device
MCCB - Moulded circuit breaker is used from 32amps to
1600amps ( combination of both thermal and magentic
ACB - Air circuit breaker is used from 630amps to 5000amps
capacity - in older version only thermal tripping only. now
a days it is combination of both thermal and magnetic
mcb (miniature ckt. breaker) is used for low current
ranges, avaiable uo to 63A
mccb (miniature current ckt breaker )is used for medium
current ranges up to 800 A
acb (air ckt breaker)is used for more higher ratings.
I have a table fan of Rallifan Make. When I overhauled it I
found a stator winding and an aluminum die cast rotor. So
it is supposed that it is a 1 phase induction motor. But
there are only two terminals coming out and there is no
capacitor. Can any one tell how this motor works? or which
type of this motor is?
what is the purpose of vector group in a transformer ? if 2
tranaformers r connected in parallel the vector group is
same or not?
for parallel operation 2 transformers of different
manufacturers maintain same vector group or not?