Interested to Buy Any Domain ? << Click Here >> for more details...
what is the difference between line & phase current in star delta connection motor?
- 2 Answers
- 5215 Views
- I also Faced
- E-Mail Answers
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
Starting current of a 10 HP induction Motor is ______ time’s full load current.
working principles of cf lamp,incandescentlamp and f lamp?
how does the thyistor work in dc drive?
What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance
Define conversion efficiency of a power amplifier.
Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend
What happens if i apply 500V to 440V rotary Switch ?
c++ write a program to use a fuction call "max"which accepts an intger arrey of size5.as an arrument and return the larger and smallest of the arrey to main without changing. the original changing of the original position of the element of the arrey.
As an electrical engineer what are the responsibilities which i can hold in TCS?
what is the function and use of cable differential protection relay?
1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve
In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring
what is the purpose of slope in the differential relay?why we are using two slope?but in busbar differential we are using only one slope.why?
if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit
If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?
