Question 1 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 2 of 6
Intermediate

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

Question 3 of 6
Intermediate

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

Question 4 of 6
Intermediate

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

Question 5 of 6
Intermediate

What is a key installer benefit of the voltage protection in SQ/SQE?

Question 6 of 6
Intermediate

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

Question 6 of 6
Intermediate

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1: Why is correct sizing of the submersible pump important?
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.
1: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
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1: Why is correct sizing of the submersible pump important?
Because too big a pump will ruin the taps due to too high pressure.
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2: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 10 %
2: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 15 %
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2: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 20 %
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3: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Four times higher
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3: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Six times higher
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3: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Seven times higher
4: What happens if the water level in the well drops below the inlet?
The motor power consumption drops
4: What happens if the water level in the well drops below the inlet?
The motor power consumption stays the same
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4: What happens if the water level in the well drops below the inlet?
The motor power consumption increases
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5: What is a key installer benefit of the voltage protection in SQ/SQE?
Steady water supply
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5: What is a key installer benefit of the voltage protection in SQ/SQE?
Faster installation
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5: What is a key installer benefit of the voltage protection in SQ/SQE?
Fewer service visits
6: 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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6: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
6: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
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