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What is mechanical loss in dc machines?
Friction and windage causes mechanical loss in DC machines.
What is the principles of DC machines?
All DC machines are works based on the principle of FARADAY'S LAW OF ELECTROMAGNETIC INDUCTION.
How can the field coils of DC machines be connected with self excited machines?
No
How many types of DC machine?
05 types of dc machines
How is DC shoes made?
machines
Why carbon brushes are used in DC machines?
Carbon brushes used in DC machines because carbon is soft material and it does not generate spikes when contact with commutator
What is the EMF for DC machines?
Electro Magnetic Field
Why DC motors and DC generators are commonly known as 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.
How do you convert a DC motor to a generator?
all the electrical machines can be run either as a motor or as a generator. but dc machines, A motor can be run as generator and vice versa with little modification
How can the mechanical losses be reduced in dc machines?
chata matha .
What is the Purpose of an ac welder?
It produces alternating current AC. It is cheaper to build than a DC or an AC - DC welder. Most electrodes can be used with DC. Some can be used for both. Very few are AC only. DC produces a smoother arc, is easier to strike an arc and most machines in industry are DC. Surprisingly a lot of AC machines are on farms as they were cheaper to buy.
Design of air gap in dc machines?
Minimum distance of air gap
