Pls explain about vfd control?Where it is used, Give some
example?
- 3 Answers
- 5645 Views
- Siemens, I also Faced
- E-Mail Answers
Answer Posted / tanmay maheshwari
Variable frequency Drives(vfd) are used for controlling the
speed of AC motors by changing the frequency of power
supply. the advantage of using them is they can be used for
multiple machines having various ratings. The
cycloconverters are used for the conversion purpose.
they are used for ventellating purpose, in pumps etc.
| Is This Answer Correct ? | 11 Yes | 0 No |
Post New Answer View All Answers
how to compute kAIC? with formulas...
sir, Is their any measuring unit of knoking? please explian?
What is the difference between circuit breaker and isolator
What is float cum boost charging system?
Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.
what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?
What is transformation ratio what it describes?
Give idea about General Engineering. From which book i can study this topic. Pl. reply me via email. My email is ravi@bhelhwr.co.in, also give the name of book/website, from where i can prepare it.
which type of stability limit is higher,steady state or transient? why?
What are the advantages of using distance protection schemes as opposed to normal overcurrent/ earth fault protection on high voltage feeders.
Where burned of electricity,when,who, & why.
How will polarity test of Dy5 Transformer ?
What are the advantages and disadvantages of negative feed back?
What is the mechanism of WTI
5.WHICH TYPE WELDING PROCESSES USES NON CONSUMABLE ELECTRODE.........
