Ac Motors Body construction is slotted where In Dc motors construction is plain.reasons are given below.
In ac motors armature is static therefor more current for cooling purpose fins are required,thats why on motor body slots are given.
In case of DC Motors Armature is rotating therefor heat produced due to armature current.there for cooling ventilation
is required.and field is static,and it takes very small amount of current so thre is no cooling requirement for that.
there is a one way u have to check the rotor if the
commutator and brush assembly present in dc motor but not in
AC motor .
but in size dc motor size quit large compare then Ac motor
and also usually Ac motor has outer cooling fins and blower
which is fixed on shaft in case of dc motor forced air
cooled inside the motor in-order to dissipate the heat .
How to connect a Restricted earth fault relay for
2000KVA,11/0.433 KV Distribution Transformer and What is
the neutral CT ratio should be selelcted for 2000 MVA
Transformer for estabilishing the Restricted earth fault
Here iam a question with SYNCHRONIZATION PANNEL related
as i want to design a SYNC.pannel board iam giving the 2
nos of 1MVA Generators to sync pannel , then what wil be
the out put of the sync pannel, whether it wil be one cable
coems from the sync panel or two cables..
as iam using two transformers to meet my load demand,
so pls clear me whether two cables comes from sync panel to
connect to transformers or only one cable