Question 1 of 6
Intermediate

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

Question 2 of 6
Intermediate

The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?

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

How does the integrated dry-running protection work?

Question 5 of 6
Intermediate

What is the benefit of a slow increase in speed?

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: Which of these isn’t a key dry-run protection benefit for the installer?
The installer can avoid costly callbacks
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1: 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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1: Which of these isn’t a key dry-run protection benefit for the installer?
The installer doesn’t have to worry about water bursts
2: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In wells with water temperature up to 60° C.
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2: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In installations that require constant pressure.
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2: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In original 4” boreholes where sediments over the years have narrowed the hole.
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: How does the integrated dry-running protection work?
It automatically restarts 3 minutes after shut down.
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4: How does the integrated dry-running protection work?
It prevents sand from damaging the pump.
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4: How does the integrated dry-running protection work?
It automatically shuts down the pump if water shortage is detected.
5: What is the benefit of a slow increase in speed?
It keeps the motor current low
5: What is the benefit of a slow increase in speed?
It keeps pump movements at a minimum
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5: What is the benefit of a slow increase in speed?
It removes the need for motor contactors
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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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