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This type of motor starting configuration is used to start large motors. The utility company's policy is to only let a certain three phase motor horsepower loads across the line starting. High horsepower loads draw high current which draws the line voltage down. This causes a small instantaneous brown out to which the utility company gets complaints about. To solve this problem, limit the horsepower load. Starting a delta motor in star configuration reduces the inrush current because the voltage applied to the motor is lower. This technology is rapidly becoming old due to the new type of motor controllers on the market. Replacing the star delta starters is soft start controllers. The inrush current can be controlled so as to not make any voltage drop on the line. These controllers are different from VFD's which are expensive for this type of application. The main function of the soft start is to get the motor on line without any line disturbances.
What else can I help you with?
What is the best type of electric motor for heavy starting loads?
The classic heavy starting load is a tram starting off from stationary, and for this the series-would dc motor is the preferred motor.
Which are preferred from both unilateral and bilateral tolerance system?
unilateral
Which amongst Bourdon's pressure gauge and manometer is preferred?
Bourdon gauge
Why fet is preferred over the bjt?
Disadvantage:Easy to damage when compared to BJT
Why is a split concentric cable preferred as a service cable over other cables?
its not
what's your preferred for starting a productive day oats or weetabix?
GB? it's 1024 MB.
What is the best type of electric motor for heavy starting loads?
The classic heavy starting load is a tram starting off from stationary, and for this the series-would dc motor is the preferred motor.
What are some examples of personification starting with the letter p?
Preferred, pondered, performed, posted, paid, pandered, purveyed.
What are the categories of insured rankings for term life insurance coverageie preferred etc and what are the typical premium differences between categories?
All companies have there own specific catagories. Most have the following: Smoker, Standard, Preferred, Super Preferred. They may also have standard plus and preferred plus. Then there may be: Preferred Smoker They all have table ratings starting with B down to P and maybe more. If you are thinking of life insurance, get an agent involved.
What is the past of has preferred?
had preferred
How do you put preferred in a sentence?
I would have preferred to answer another question. What you preferred is not what I want. The judges preferred the other contestant.
What is an example of a sentence using the word preferred?
So what do you like? Is pizza more preferred to you?
Is preferred the same as preferred stocks?
Preferred stocks and preferred are exactly the same thing. Preferred is just an abbreviation that is used so that people in the know can use their jargon.
What is opposite of preferred?
non preferred
What Famous person with the first name starting with e?
Erin Carter The poet e.e.cummings (This was his preferred way of spelling his name .); see link for further information .
Why cosine signals are preferred?
The answer depends on preferred to WHAT!
What is a preferred credit card?
what is a preferred card
