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Inverter Rating

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Nick Clarke 313/02/2019 19:05:54
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1322 forum posts
53 photos

Starting to look at inverters and wondered if there were any benefits (or indeed drawbacks) to using a higher rated inverter than strictly necessary - ie would a .75kW invertor be suitable for a .75kW (1Hp) motor or would a 1kW (or larger) be a better choice?

Thanks

Nick

Edited By Nick Clarke 3 on 13/02/2019 19:08:45

Thor 🇳🇴13/02/2019 19:28:14
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1483 forum posts
41 photos

Hi Nick,

Have you read this thread?

Thor

Mike Poole13/02/2019 19:30:18
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3168 forum posts
72 photos

A 750W inverter should run a 750W motor or less with no problems. Often the actual motor current is one of the parameter settings so a smaller motor can be run at full performance and protected. Some more sophisticated inverters can run a self test to learn the motor that is connected and set relevant parameters. In general there is no point in overrating the inverter.

Mike

Martin Cargill13/02/2019 20:35:23
170 forum posts

If the price difference between the two is small it may be worth going for the bigger inverter. You never know when you might want to upgrade the motor or the machine.

Martin

Nick Clarke 313/02/2019 21:06:45
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1322 forum posts
53 photos
Posted by Thor on 13/02/2019 19:28:14:

Hi Nick,

Have you read this thread?

Thor

I have now.

Thanks

Nick

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