What is the most commonly used starting method for motors in 4” conventional pumps?
Why is it important to protect the pump from over- and under voltage?
The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
Why is correct sizing of the submersible pump important?
Where is domestic groundwater extraction typically relevant?
Test results
Q: What is the most commonly used starting method for motors in 4” conventional pumps?
A: Direct on line
Q: What is the most commonly used starting method for motors in 4” conventional pumps?
A: Star delta starters
Q: What is the most commonly used starting method for motors in 4” conventional pumps?
A: Auto transformer
Q: Why is it important to protect the pump from over- and under voltage?
A: Because large variations in power supply will damage the motor over time.
Q: Why is it important to protect the pump from over- and under voltage?
A: To avoid burning the house fuses.
Q: Why is it important to protect the pump from over- and under voltage?
A: To minimise the power consumption.
Q: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
A: In wells with water temperature up to 60° C.
Q: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
A: In installations that require constant pressure.
Q: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
A: In original 4” boreholes where sediments over the years have narrowed the hole.
Q: Why is correct sizing of the submersible pump important?
A: Because an undersized pump will not be able to deliver the required flow and pressure and an oversized pump reduces energy efficiency, which increases operational costs.
Q: Why is correct sizing of the submersible pump important?
A: Because too small a pump will pump the well dry.
Q: Why is correct sizing of the submersible pump important?
A: Because too big a pump will ruin the taps due to too high pressure.
Q: Is the SQE pump able to provide constant pressure?
A: No.
Q: Is the SQE pump able to provide constant pressure?
A: Yes.
Q: Where is domestic groundwater extraction typically relevant?
A: In big cities.
Q: Where is domestic groundwater extraction typically relevant?
A: In remote areas where it is too costly to extend the municipal water supply to just a few houses.
Q: Where is domestic groundwater extraction typically relevant?
A: In smaller and medium sized towns.