Question 1 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 2 of 6
Intermediate

In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?

Question 3 of 6
Intermediate

Which protection features does the SQE have?

Question 4 of 6
Intermediate

What is the most commonly used starting method for motors in 4” conventional pumps?

Question 5 of 6
Intermediate

Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?

Question 6 of 6
Intermediate

Why is it important to protect the pump from over- and under voltage?

Question 6 of 6
Intermediate

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1: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
1: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
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1: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
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2: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Soft start reduces over-pressure in your piping.
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2: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
It reduces the occurrence of water hammer in the pipes and minimises wear during start-up.
2: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Soft start prevents the motor from getting warm.
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3: Which protection features does the SQE have?
Voltage handling, soft start, dry-running protection and overload protection.
3: Which protection features does the SQE have?
Protection against the well running dry.
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3: Which protection features does the SQE have?
The SQE does not have any protection features.
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4: What is the most commonly used starting method for motors in 4” conventional pumps?
Direct on line
4: What is the most commonly used starting method for motors in 4” conventional pumps?
Star delta starters
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4: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
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5: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Groundwater lowering & Irrigation
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5: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Domestic water supply & Groundwater lowering
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5: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Domestic water supply & Irrigation
6: Why is it important to protect the pump from over- and under voltage?
Because large variations in power supply will damage the motor over time.
6: Why is it important to protect the pump from over- and under voltage?
To avoid burning the house fuses.
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6: Why is it important to protect the pump from over- and under voltage?
To minimise the power consumption.
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