How to control speed of DC motor with AC power?
Answer Posted / saeid
I don't really understand why using field control can be
dangerous for a DC motor while this technique has been used
in thousands of application around the world without any
problem.
Any way, in order to control a DC motor, there are three
general ways: Armature voltage control
Field voltage control
Armature resistance control
Is This Answer Correct ? | 12 Yes | 5 No |
Post New Answer View All Answers
Dear sir my name Ankit i m Diploma holder present working in Welspun Corp ltd Anjar as Asst.engg (salary 14400/month ctc) i Would like to change my company also i have selected in ford India pvt ltd Sanand as trainee Tech with salary 12000/month so please suggest me for changing my job hope for *ve response
Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA
While testing a ZCT what parameters have to check or measure?
Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?
anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?
what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)
Dear all, i completed M.E(Power Electronics & Drives) 2011 passed out having 78% so i need job in core side but i don't know how can i receive the calls from electrical companies and i uploaded my CV in naukri, times jobs etc.. In that iam not recieved any mails from good companies so give me best procedure plzzzzzzzzzzzzzzzzzzzzzzzz..... Thanks, K.Linga Reddy Email-id:-lingareddykmthm@gmail.com Ph no:-08015402078
How does zener phenomenon differ from avalanche breakdown?
WHAT IS counter flux IN CT?
how withstand of hi-pot test outputs of transformer wire 2.5mm
Make a list observation on Transformer?
The power supplied to a 50mH inductor from a 120V, 60Hz source will be
If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?
If a high resistance fault occurs,then what are the changes will happen in the system?
how can see the ac indoor or out door ac which Tr