It is a three inch fan and i want it to rotate to other direction .I've tried cutting the wire and reconnecting them inverse like black to white and white to black ,but it won't start rotating when i plug it in that way.And then it works again when i rejoin the wire to the way it is. I don't know what causing the problem.Is there anyone familiar with these small mortor?Any suggestion would be appreciated.Thanks!! http://i296.photobucket.com/albums/mm163/sasukebloodwheel/110527-105859.jpg

2 Answers  

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To prevent the mal operation of a differentially connected relay while energizing a transformer, the relay restraining coil is baised with (a)second harmonic current (b)fifth harmonic current (c)third harmonic current (d)seventh harmonic current

2 Answers  

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suppose there is afault in transmission line connected to a generating station, then what r the adjustments u will take to without loss of synchronism?????

2 Answers   NTPC,

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What is electrical diversity factor in electrical installations?

0 Answers  

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what is the design factor that affects the size of a motor ?

3 Answers   Reliance, SGI,

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in case of OC+EF relay, how the burden is divided/calculated/shared by the CTs in case of normal (healthy condition) and during fault conditions.? three coils of OC & ef coil is conected in residual connection across the three CTS.

1 Answers  

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what is slip resistance? how much its value in 110 kw motor? why voltage is varied in vvvf drive ?

1 Answers   Reliance,

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In a power system we know that if the generated power is less than the load then the frequency of the system is decreases.So does this mean that total required load is delivered at alower frequency?

1 Answers  

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what is a bus riser in power system and why it is used

2 Answers  

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What is the difference between a Junction Box and a Marshalling Box?

8 Answers  

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i want all question & answers of the written exam

1 Answers   Essar, L&T, MES, RRB,

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what is meaning of bus raiser???

1 Answers  

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