MOSFET and Diode ratings

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shraddha17

New Member

• Oct 30, 2015

• #1

Im designing 3phase vsc (voltage source converter) and I want to know the exact ratings of the power MOSFET and diode for 3phase induction motor of ratings 1500rpm, 440v, 2 hp.

 

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shraddha17

New Member

• Oct 30, 2015

• #2

Please answer my question... Need help as soon as possible... Can reply me personally.

 

JimB

Super Moderator

Most Helpful Member

• Oct 30, 2015

• #3

I have moved your posts to their own thread - DO NOT HIJACK other peoples threads.

 

ronsimpson

Well-Known Member

Most Helpful Member

• Oct 30, 2015

• #4

shraddha17 said:

Need help as soon as possible

Click to expand...

You are in trouble. lol

If you know enough to build, you should know how to find the voltage across the parts. The power line can have spikes so you will need more voltage rating.

You need to find the current for a 2hp motor. There is run current and startup current. Remember; if you use a part at its rated current it will be hot.

 

MikeMl

Well-Known Member

Most Helpful Member

• Oct 30, 2015

• #5

You need a lot more help than a hobbyist forum can provide.

 

crutschow

Well-Known Member

Most Helpful Member

• Oct 30, 2015

• #6

As a start you need to calculate the maximum motor current.
Do you know how to do that?

What is a voltage source converter?
What is the source voltage?

If you don't understand the basics, then MikeML likely is correct.