At which stage does Grundfos recommend installing an output filter?
What is a general rule of thumb when it comes to a motor cable?
The larger the cross-sectional area of the cable, the lower the energy losses. True or false?
When does undervoltage typically happen?
Which of these is not a key factor when determining which type of drop cable to use?
What is the main advantage of using a variable frequency drive in submersible pumps?
Test results
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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
Q: What is a general rule of thumb when it comes to a motor cable?
A: It must always be submerged in liquid
Q: What is a general rule of thumb when it comes to a motor cable?
A: It must always be used in the air
Q: What is a general rule of thumb when it comes to a motor cable?
A: It must be larger than the drop cable
Q: The larger the cross-sectional area of the cable, the lower the energy losses. True or false?
A: True
Q: The larger the cross-sectional area of the cable, the lower the energy losses. True or false?
A: False
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 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: 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