Power inverter nad inductive load test

[satrah101]

Hello all

I have a motor water pump rated at 370w and a power inverter with a rating of 1000w but can handle surge peak power of 2000w for 1 second. Is there a way to test inductive loads of a motor to find out if my power inverter can handle the required load at start-up. Hope I got this right as I am new to electronics.



Inverter is a powertech model MI5722 pure sine wave 1000w 12vdc/230 30A solar regulator.
https://www.jaycar.com.au/1000w-pure-sine-wave-inverter-with-30a-solar-regulator/p/MI5722

Many thanks in advance.

 

[cadaveca]

Yeah, should be written in code format on the motor. There is math that can be done as well, but you shouldn't need to bother with that.

 

[satrah101]

Hello Dave
Thanks for the quick reply. I could not find anything on the motor specs. This is the product that i have my eye on (but do not own yet)- http://www.ebay.com.au/itm/252541858936. Maths is fun, love it. Can you send a link for the maths stuff, may save some time for you writing it out. Studied health science and medical subjects for over 10 years. Electronics is very new for me. Need to get set up for irrigation system 240v and have it controlled with arduino and powered by solar with deep cycle battery. The easy part. my inverter is 600 dollars so i do not want to see it blowup , but if push comes shove, will will buy big inverter.

 

[Bill_Bright]

If you have access to a decent o'scope and know how to set it up and interpret the results, you can measure the in-rush current to see if it exceeds the capacity of your inverter. Assuming your pump and inverter are in proper working order, you have plenty of headroom. I highly doubt you exceed the 1000w capacity. But if you do, it is no where near 2000w, nor will it last a whole second.

 

[cadaveca]

Ah, so by this model, you are in the asia region? there would not be such standardized labelling there as there is here in North America.

Contact the pump maker directly, and ask them the inrush current for this model. looking at labelling on the ebay site shows 370W, but just below, 470W.


That's the sort of stuff I'm used to looking at, so I'd hazard to say that that 470W figure in for start-up, but I cannot say for sure.

Since you need such info to be able to make power supply for any motor, motor makers usually have no problem offering this info quite quickly. They WANT to answer your exact question, really.