Question 1 of 6
Intermediate

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

Question 2 of 6
Intermediate

How long did it take to replace the pump with a Grundfos SQ?

Question 3 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 4 of 6
Intermediate

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

Question 5 of 6
Intermediate

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

Question 6 of 6
Intermediate

What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?

Question 6 of 6
Intermediate

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1: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 10 %
1: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 15 %
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1: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 20 %
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2: How long did it take to replace the pump with a Grundfos SQ?
30 minutes
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2: How long did it take to replace the pump with a Grundfos SQ?
60 minutes
2: How long did it take to replace the pump with a Grundfos SQ?
90 minutes
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3: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
3: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
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3: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
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4: What is the most commonly used starting method for motors in 4” conventional pumps?
Direct on line
4: What is the most commonly used starting method for motors in 4” conventional pumps?
Star delta starters
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4: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
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5: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Four times higher
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5: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Six times higher
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5: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Seven times higher
6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 100 V and 250 V
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6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 150 V and 315 V
6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 230 V and 400 V
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