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07-19-2012 03:11 AM

inverter for pumps solution

We are looking for water pumping solutions for the following capacity pumps:

1.5kW (2.2HP) - We need only single phase inverter, 4-5A rated output, 20A surge, 220VAC - Please specify the recommended output power of PV setup.

3.7kW (5HP) - We need single and three phase inverters as there are options for both pumps, 7A rated output, 32A Surge current on startup, 220V and 380V options. Please specify the recommended output power of PV setup

5.5kW (7.5HP) - Possibly single phase and three phase, 9-10A rated output, 40A surge on startup, 220V and 380V options and please specify the recommended output power of PV setup

7.5kW (10HP) - 3 Phase Inverter only, 13-14A output, 52A surge, 380V. Please specify the recommended output power of PV setup

Since your inverters are VF function enabled, we would like to make them work with air-conditioners as well.

Please list your recommended setup for each of the above requirements.

Many thanks
07-20-2012 02:29 AM
Top #2
07-20-2012 02:29 AM
the single phase and three phase inverter can NOT be options. if the inverter is three phase, means just three phase power is acceptable.

About the startup surge current, I assume the data you listed was for the motor only, have NOT connected to the inverter.
After you apply inverter for the pumps, the startup surge current is just about 1.3times of the rated current, means 5A output, the surge is about 5*1.3A
08-30-2012 04:26 AM
Top #3
08-30-2012 04:26 AM
I found a fairly smiple set of instructions for a DIY wind generator on the web. I'm certainly no carpenter but I managed to throw together and now I also sell my excess electricity back to electric company. Check it out if you're interested.
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