The inexpensive way to improving energy efficiency of a
motor which operates consistently at below 40% of rated
capacity is by _____.
Answer Posted / parekh viraj
operating in delta mode
| Is This Answer Correct ? | 18 Yes | 8 No |
Post New Answer View All Answers
3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........
1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?
What is icu and ics in Acb and how many time icu or ics passes from breaker?
On Which Pressure PRV is operated.
What is measurement?
what happen when we add mentos in cold drink?& why?
Explain Continuous and Discrete signals?
in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?
why ct ,cvt should be stored in a vertical position?
Explain the functioning of diode?
What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.
The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current
Benifits of 3ph 4 wire metering over 3ph 3 wire
Why neutral point is consider as zero potential?
how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.