When does undervoltage typically happen?
Which type of output filter does Grundfos recommend?
Where can you find the required cooling level?
What is the main advantage of using a variable frequency drive in submersible pumps?
Which of these is not a key factor when determining which type of drop cable to use?
At which stage does Grundfos recommend installing an output filter?
Test results
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Q: When does undervoltage typically happen?
A: When the drop cables are too small
Q: When does undervoltage typically happen?
A: When the drop cables are too large
Q: When does undervoltage typically happen?
A: When there is too much heat in the motor
Q: Which type of output filter does Grundfos recommend?
A: Line choke filter
Q: Which type of output filter does Grundfos recommend?
A: Sine wave filter
Q: Which type of output filter does Grundfos recommend?
A: dV/dt filter
Q: Where can you find the required cooling level?
A: In Grundfos Product Center
Q: Where can you find the required cooling level?
A: On the motor nameplate
Q: Where can you find the required cooling level?
A: In the pump’s data booklet
Q: What is the main advantage of using a variable frequency drive in submersible pumps?
A: It allows you to regulate your installation
Q: What is the main advantage of using a variable frequency drive in submersible pumps?
A: It is much quieter
Q: What is the main advantage of using a variable frequency drive in submersible pumps?
A: It is easy to install
Q: Which of these is not a key factor when determining which type of drop cable to use?
A: Selecting the drop cable based on pumped media
Q: Which of these is not a key factor when determining which type of drop cable to use?
A: Selecting the drop cable based on voltage losses
Q: Which of these is not a key factor when determining which type of drop cable to use?
A: Selecting the drop cable based on life cycle costs
Q: At which stage does Grundfos recommend installing an output filter?
A: If the net supply is over 340 V
Q: At which stage does Grundfos recommend installing an output filter?
A: If the net supply is over 360 V
Q: At which stage does Grundfos recommend installing an output filter?
A: If the net supply is over 380 V