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Solar Water Pumping Systems

Solar Water Pumping Systems

From the array on the ground to the water in the tank, specified as one system rather than a box on a wall.

The Process

How KEVAN Works Through It

1. Duty Point First

Head, flow and daily water demand decide the pump. Everything downstream - drive rating, array size, cable - follows from that, not the other way round.

2. Pump and Motor Type

PMSM, asynchronous and BLDC pumps are all supported by the SV13 and SV20, so the pump can be chosen on hydraulics. Confirm phase and voltage: single-phase 220V, three-phase 220V or three-phase 380V.

3. Drive Selection

SV13 for 0.4-22kW compact installations, SV20 where grid-adaptive behaviour, light detection and sub-10ms switching are needed, KV500 where only single-phase 220V exists and the pump is three-phase 380V.

4. Array Sizing and MPPT

The drive tracks the maximum power point, but it cannot invent power. Size the array for the pump duty point across the working day, with headroom for low-light hours.

5. Hybrid Backup

Where supply must continue after sunset, wire the AC source - grid or diesel - so the drive can switch into hybrid mode rather than stopping.

6. Protection and Sensors

Connect the low water probe and tank-full input at installation. Dry-run, overload, over-voltage and low-frequency protections all need to be commissioned, not left at default.

7. Monitoring

GPRS modules give mobile app status on SV13 and SV20; RS485 Modbus RTU on the KV500 feeds an existing SCADA or irrigation controller.

8. Commissioning and Handover

Test dry-run tripping deliberately on an empty pipe, record parameters, and leave the operator with the settings that matter - start threshold, stop frequency and source switching.

FAQ

Solar Water Pumping Systems Questions

How efficient is the SV20?
Energy conversion efficiency reaches up to 96%, and the highest efficiency quoted is 98.7%.
How fast does it switch between solar and grid power?
AC/DC switching time is less than 10ms, so pumping is not interrupted during the change.
What pump sizes does the SV13 cover?
0.4kW to 22kW.
Which pump supply voltages are supported?
Single-phase 220V, three-phase 220V and three-phase 380V.
Can the KV500 really run a three-phase 380V pump from a single-phase 220V supply?
Yes. That is its defining feature: single-phase 220VAC input, three-phase 380VAC output, with no step-up transformer or phase converter required.
What power range does it cover?
2.2kW to 18kW.

Design Your Solar Water Pumping Systems With Us

Send site details - head, flow, supply, motor - and our engineers will size the system.