The DC Generator generate the AC supply only in Armature
not DC Supply.But we want Dc source , so want one converter
thats why we use commutator.In shortly we can say its
converts AC source to DC source.
its obvious t rectifies ac to dc..bcoz the current produced
by the dc generator will b of sinusoidal form obviously ac
since it s a dc generator it should produce only dc
current..in order 2 convert it to dc v r using this
commutator.
it the part of dc generator.in dc generator two half rings
are used the purpose of these rings is to prevent the
direction of current as in ac thee are caled as commotator
Dear all please note commutator is not a converter, all are
telling dc ot ac, we already giving dc supply to motor
through motor terminals at A1 & A2 (ie.+ & -) it is
transformed to rotor winding or bars through Brush and
commutator.
DC supply - Motor TB A1&A2 - Carbon Brush - Commutator -
Rotor winding or copper bars
in dc motor,rotor provides an alternating flux for the
reason of provides rotating torque so that need for ac
supply to rotor..in order to that comutator converts the ac
from dc supply to rotor... so commutator need for dc motor..
According to general circuit diagram of 1-Phase t/f , why
the primary is not get short circuited ,even though the
supply terminals both are directly connected through
primary winding?
we have a 2000kva step down transformer at our site. The HT
side is charged from 22000V. So the primary current will be
52.48A. So why the HT breaker(SF6 ABB) is rated of
1250Amps ?
along with your userid / name. ThanQ
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