Interested to Buy Any Domain ? << Click Here >> for more details...
hello, I need to know exactly what happen in the motor
while it is connected to the (star/delta) starter,
mechanical and electrical. Thaks for answering
- 3 Answers
- 5803 Views
- I also Faced
- E-Mail Answers
Answer Posted / parth belani
When A motor starts, it draws more current, which is
usually 6-7 times the normal current. This high current can
damage the motor winding because of heating. Therefore we
need to reduse the starting current. For this purpose we
use a star-delta starter. when the motor starts, this
starter connects the motor windings in the star connection,
because of which the current reduces to 1.732 times. After
the motor picks up some predetermined speed, the starter,
with the help of a swich (this switch operates
automatically with the centrifugal force), connects the
motor windings in delta connection.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
how to calculate the fault in substation
How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?
What is the Nyquist criterion regarding control systems?
What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?
explain all the classes with example
whati s the sludge current in ups
what are symmetrical and non symmetrical components in electrical installation.
How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)
An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP wants to distribute these blocks to 2600 customers as follows. a) 200 medium size businesses; each needs 16 addresses b) 400 small businesses; each needs 8 addresses c) 2000 households; each needs 4 addresses Design the subblocks and give the slash notation for each subblock. Find out how many addresses are still available after these allocations.
Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?
how to select the no. of brushes in a lap winding?
how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?
How test for Ddo vector group test condition?
what is differant beetween overload current and phase current?
what type of earthing do for dry fissure rock?
