How Humming noise generated in starter motor which was used
the start the engine in a vehicle/car/Truck?.Moreover
Starter motor was operated in DC power supply. Can you guys
clarify ?
Answer Posted / 1802.pranav
actually in stater of a vehicle there is one solenoid switch
which has one auxiliary and one main winding.so as soon as u
rotate the key of car,auxiliary winding comes into the
picture and 1st contact is made.in this situation motor runs
at low speed around 600rpm.But when 2nd switch comes into
contact due to main wdg then motor runs at max speed.and
when 2nd switch comes into contact it produces spark and
pushing action DUE TO WHICH HUMMING SOUND COMES.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What are the advantages of nichols chart?
WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI
Who many reason of ignition fail ?
im electrical engineer, could any one help me for FEWA exam questions please ?
What is the main cause of magnetism?
Some times to change of DOR of a motor, interchange of R & B is not effected and RYB take same current, but interchange of R&Y is effected ie change the DOR. My doubt is what is the problem in motor and how it is happen.
what are the different methods for the starting of a synchronous motor.
Difference between earthing & grounding.?
Terminal blocks is used for segregate the connections... There is any principle for terminal block..?
why power factor is important?
what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)
What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
How will you define capacitance?
Comparision of Air break circuit breaker, SF6 Circuit breaker and vacuum circuit breaker.