what is the difference between line & phase current in star delta connection motor?
Answer Posted / e. segovia
In 3ph star connections we can prove by means of drawings
or maths methods that Line current = SQRT(3)*Phase
current, and in delta connections Line current = Phase
current, that is why we use star-delta connection for
heavy motor startings. This means we can lower the current
at starting and then after having overcome the system
inertia we swap to delta connection. worth mentioning that:
In delta, Line voltage = Phase voltage
In star, Line voltage = SQRT(3)*Phase voltage.
Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
what is the minimum clearance between a 11KV 150KVAR capacitor cell and series reactor.can a series reactor can be mounted in the same structure of the capacitor cells structure
what is draiv work
can we synchronize star system generators with delta system transmission line ? and how ?
hello! sir i did three year of diploma in electrical (2007- 2010) and now i m a student of electrical engineering. sir can i apply for germany visa for study and part tome work over there?
i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.
Can RCD's used to protect the VVVF drive if not why.
please give me solution to rectify the emi(electromagnetic interference)
why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?
How will you utilise electrical power? You can start from the generating station.
what is EIB lighting control system? what is the advantages of this system?
Distinguish between nuclear power station with thermal power station for initial cost, starting period, cleanliness, and transportation of fuel
What is the name of the winding from which the supply is taken for load connections?
why star point of HT motor not earthed?
10 Mtr Hight of Lighting Arrestar how much area coverd??
State kirchoff voltage law?