Question 1 of 6
Intermediate

What happens if the static water level is too low?

Question 2 of 6
Intermediate

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

Question 3 of 6
Intermediate

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

Question 4 of 6
Intermediate

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

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

Question 6 of 6
Intermediate

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1: What happens if the static water level is too low?
The pump overheats
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1: What happens if the static water level is too low?
The water level is brought down below the inlet of the pump
1: What happens if the static water level is too low?
The motor shuts down
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2: 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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2: 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
2: 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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3: How long did it take to replace the pump with a Grundfos SQ?
30 minutes
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3: How long did it take to replace the pump with a Grundfos SQ?
60 minutes
3: How long did it take to replace the pump with a Grundfos SQ?
90 minutes
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4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 10 %
4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 15 %
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4: By how much does the supply voltage decrease before the motor contactor stops the pump?
More than 20 %
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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 is the most commonly used starting method for motors in 4” conventional pumps?
Direct on line
6: What is the most commonly used starting method for motors in 4” conventional pumps?
Star delta starters
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6: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
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