Interested to Buy Any Domain ? << Click Here >> for more details...
Initially motor starts with star connection ,after few
timing changes to delta connection, why the motor should
run continously in star connection,it gives high torque &
low current?
- 3 Answers
- 9522 Views
- I also Faced
- E-Mail Answers
Answer Posted / velusamy
There are two reasons
1.To get high starting torque, motor runs at star for
predetermined duration and then changed to delta.
2.If the motor runs continuously , the capacity of the
motor is reduced by root 3 times (Capacity of motor
rating/1.7324) and hence motor will fail if the OL setting
is not reduced to 1.7324times of motor full load current).
| Is This Answer Correct ? | 6 Yes | 2 No |
Post New Answer View All Answers
one split ac how can told of this ac which Tr tell me us
What is purpose of reactor?.What is different between line and bus reactor?
What are PLC leader logic program method
Why the efficiency of generator is more than motor in swinburne's test
The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is
What is a dc motor?
what is the Transformer Impedence?How can calculate?
What are the specifications for conducting earth leakage test as per IEC standard?
what is the difference between earthing and unearth
Define thermal resistance in the context of power amplifier.
BSNL TTA EXAM QUESTION
details of oil cell size of Breakdown voltage test of tranformer oil details as per Standardswith mushroom electrodes?
What is Anemometer used to measure?
how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?
why ht cable end termination don't have a gland?
