Question 1 of 6
Intermediate

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

Question 2 of 6
Intermediate

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

Question 3 of 6
Intermediate

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

Question 4 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 5 of 6
Intermediate

What happens if the static water level is too low?

Question 6 of 6
Intermediate

In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?

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: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Four times higher
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2: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Six times higher
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2: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Seven times higher
3: What happens if the water level in the well drops below the inlet?
The motor power consumption drops
3: What happens if the water level in the well drops below the inlet?
The motor power consumption stays the same
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3: What happens if the water level in the well drops below the inlet?
The motor power consumption increases
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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: 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: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Soft start reduces over-pressure in your piping.
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6: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
It reduces the occurrence of water hammer in the pipes and minimises wear during start-up.
6: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Soft start prevents the motor from getting warm.
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