Question 1 of 6
Intermediate

What is the most commonly used starting method for motors in 4” conventional pumps?

Question 2 of 6
Intermediate

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

Question 3 of 6
Intermediate

What is the benefit of a slow increase in speed?

Question 4 of 6
Intermediate

Why is it important to protect the pump from over- and under voltage?

Question 5 of 6
Intermediate

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

Question 6 of 6
Intermediate

Where is domestic groundwater extraction typically relevant?

Question 6 of 6
Intermediate

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1: What is the most commonly used starting method for motors in 4” conventional pumps?
Direct on line
1: What is the most commonly used starting method for motors in 4” conventional pumps?
Star delta starters
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1: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
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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: What is the benefit of a slow increase in speed?
It keeps the motor current low
3: What is the benefit of a slow increase in speed?
It keeps pump movements at a minimum
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3: What is the benefit of a slow increase in speed?
It removes the need for motor contactors
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4: Why is it important to protect the pump from over- and under voltage?
Because large variations in power supply will damage the motor over time.
4: Why is it important to protect the pump from over- and under voltage?
To avoid burning the house fuses.
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4: Why is it important to protect the pump from over- and under voltage?
To minimise the power consumption.
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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: Where is domestic groundwater extraction typically relevant?
In big cities.
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6: 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.
6: Where is domestic groundwater extraction typically relevant?
In smaller and medium sized towns.
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