Question 1 of 6
Intermediate

How many times higher than nominal speed does the motor current reach during the first milliseconds?

Question 2 of 6
Intermediate

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

Question 3 of 6
Intermediate

Which of these isn’t a key dry-run protection benefit for the installer?

Question 4 of 6
Intermediate

Why must the pump unit be installed below the dynamic water table?

Question 5 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 6 of 6
Intermediate

What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?

Question 6 of 6
Intermediate

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1: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Four times higher
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1: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Six times higher
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1: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Seven times higher
2: 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.
2: Why is it important to protect the pump from over- and under voltage?
To avoid burning the house fuses.
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2: Why is it important to protect the pump from over- and under voltage?
To minimise the power consumption.
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3: Which of these isn’t a key dry-run protection benefit for the installer?
The installer can avoid costly callbacks
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3: Which of these isn’t a key dry-run protection benefit for the installer?
The installer doesn’t have to worry about additional components
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3: Which of these isn’t a key dry-run protection benefit for the installer?
The installer doesn’t have to worry about water bursts
4: Why must the pump unit be installed below the dynamic water table?
So you are sure to minimise your power bill.
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4: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
4: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
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5: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
5: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
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5: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
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6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 100 V and 250 V
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6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 150 V and 315 V
6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 230 V and 400 V
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