What is cogging and crawling phenomenon in motor.
- 2 Answers
- 3270 Views
- DAE, I also Faced
- E-Mail Answers
Answer Posted / kamalesh
cogging
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper
Explain cos(theta) and Sin(theta)
what is the difference between vector scale and vector diagram?
two way ckt diagram can be drawn by how many ways? give diagram
If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..
what is difference between speed mode and torque mode in motor?? explain in simple words please.
What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?
Is the theorem applicable to ac sources?
How many gap between finger contact in a.c.b. and v.cb.?
what is the reason the main breaker is trip during the motor is running? (some time the breaker is not trip)
How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).
How can we increase the capacity of Energy.?
A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
What was your role in the silicon evaluation/product ramp? What tools did you use?
