Interested to Buy Any Domain ? << Click Here >> for more details...
Why is starter necessary for a three-phase induction motor?
- 37 Answers
- 180405 Views
- BMM, Essar, Hero MotoCorp, ITI, Maruti Suzuki, Supertech, Watt, I also Faced
- E-Mail Answers
Answer Posted / r.siddharth
At the instant of starting, the rotor is stationary, thus
slip being unity, the frequency of the rotor emf equals the
supply frequency and the rotor emf induced per phase is
quite large.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
What type of core material is used for metering C.T and protection C.T???
i have 3500 amp load and select current transformer and perches.how i calculate .please understand
how can we make cable shedule for controll wiring ? which details must be required for it.?
why ss stablity limit is more transient stablity limit?
which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?
What is the dc grounding system and what is diff between AC/DC grounding system?
HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com
what are the factors to be considered while design the breaker either HT or LT??
what is destructive and non-destructive testing of welding
how invertor convert the dc into ac give brif detail
1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?
What is speed mode?
what is feed back and what are feed back amplifiers?
difference between a diode and thyristor?
what is the major difference between LIBBP & HIBBP.. which one is most preferable..
