Question 1 of 6
Intermediate

Which protection features does the SQE have?

Question 2 of 6
Intermediate

What is the benefit of a slow increase in speed?

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 is correct sizing of the submersible pump important?

Question 5 of 6
Intermediate

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

Question 6 of 6
Intermediate

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

Question 6 of 6
Intermediate

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1: Which protection features does the SQE have?
Voltage handling, soft start, dry-running protection and overload protection.
1: Which protection features does the SQE have?
Protection against the well running dry.
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1: Which protection features does the SQE have?
The SQE does not have any protection features.
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2: What is the benefit of a slow increase in speed?
It keeps the motor current low
2: What is the benefit of a slow increase in speed?
It keeps pump movements at a minimum
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2: What is the benefit of a slow increase in speed?
It removes the need for motor contactors
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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 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.
4: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
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4: 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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5: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 10 %
5: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 15 %
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5: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 20 %
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6: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Four times higher
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6: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Six times higher
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6: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Seven times higher