Question 1 of 6
Intermediate

Where is domestic groundwater extraction typically relevant?

Question 2 of 6
Intermediate

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

Question 3 of 6
Intermediate

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

Question 4 of 6
Intermediate

By how much does the supply voltage decrease before the motor contactor stops the pump?

Question 5 of 6
Intermediate

What happens if the static water level is too low?

Question 6 of 6
Intermediate

What happens if the water level in the well drops below the inlet?

Question 6 of 6
Intermediate

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1: Where is domestic groundwater extraction typically relevant?
In big cities.
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1: Where is domestic groundwater extraction typically relevant?
In remote areas where it is too costly to extend the municipal water supply to just a few houses.
1: Where is domestic groundwater extraction typically relevant?
In smaller and medium sized towns.
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2: 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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2: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
2: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
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3: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Groundwater lowering & Irrigation
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3: 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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3: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Domestic water supply & Irrigation
4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 10 %
4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 15 %
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4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 20 %
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5: What happens if the static water level is too low?
The pump overheats
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5: What happens if the static water level is too low?
The water level is brought down below the inlet of the pump
5: What happens if the static water level is too low?
The motor shuts down
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6: What happens if the water level in the well drops below the inlet?
The motor power consumption drops
6: What happens if the water level in the well drops below the inlet?
The motor power consumption stays the same
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6: What happens if the water level in the well drops below the inlet?
The motor power consumption increases
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