because we cannot apply to series motor
in this test their is a no load on dc shunt motor so it is an indirect test
05 types of dc machines
because the dc motor will act as dc generator as same as dc generator acts as a dc motor .so it is called as dc machines.AnswerBecause generators and motors are machines, and operate on d.c.'A.C. machines' are generators, transformers, and motors which operate on a.c.
swinburne's test on dc shunt machine is to predetermine the efficiency of the dc machine , but it is not accurate it is just like estimation of efficiency of dc shunt machine when it is run as a motor and a generator............................
All transformers are a.c. machines.
in this test their is a no load on dc shunt motor so it is an indirect test
we can predetemine the efficiency of a dc machines working as a motor or generator
Friction and windage causes mechanical loss in DC machines.
All DC machines are works based on the principle of FARADAY'S LAW OF ELECTROMAGNETIC INDUCTION.
No i took tablets to help me pass everything naturally .
No
05 types of dc machines
machines
The DC Test was a test which students could take when applying for a Diploma course in nursing. The initials DC stood for Dennis Child, the test's creator.
I think you probably mean a 'brake' test, not a 'break' test. A 'brake test' is performed to find the output power of any machine. In North America, this is commonly expressed as 'brake horsepower'; elsewhere it is expressed in 'watts'.
Carbon brushes used in DC machines because carbon is soft material and it does not generate spikes when contact with commutator
Electro Magnetic Field