SOLAR WATER PUMP INVERTERS

SOLAR WATER PUMP INVERTERS

The correct sizing of a solar water pump inverter is crucial for the optimal, stable operation of the pump system, especially when running a submersible water pump.

Inverter sizing for solar water pumps

Depending on the application, solar water pumps, particularly submersible (deep-well) pumps need a high amount of power. For the pump system start up, a high current surge must be handled, requiring a fit and correctly sized inverter for the solar water pump system.

The complete circuit, including the batteries, should be adjusted to sustain the start up surge concurrently with other system loads. If improperly sized, the solar water pump inverter in the circuit can shut down, offsetting the correct operation of the pump systems which can be a very serious problem in applications where continuous water supply, such as for feed-stock irrigation and drinking water supply, is crucial.

The minimum continuous watt rating of a solar water pump inverter is required to start off a submersible water pump without additional loads. The standard average running power is usually between 10-20% with typically about 10% of power losses in the inverter. The modified sine-wave inverter will take the losses to 15% because the motor efficiency is affected negatively.

SOLAR WATER PUMP INVERTERS

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