1
At which stage does Grundfos recommend installing an output filter?
2
Which type of output filter does Grundfos recommend?
3
What is a general rule of thumb when it comes to a motor cable?
4
Which of these is not a key factor when determining which type of drop cable to use?
5
The larger the cross-sectional area of the cable, the lower the energy losses. True or false?
6
What is the main advantage of using a variable frequency drive in submersible pumps?
Test results
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01.
Q: At which stage does Grundfos recommend installing an output filter?
A: If the net supply is over 340 V
01.
Q: At which stage does Grundfos recommend installing an output filter?
A: If the net supply is over 360 V
01.
Q: At which stage does Grundfos recommend installing an output filter?
A: If the net supply is over 380 V
02.
Q: Which type of output filter does Grundfos recommend?
A: Line choke filter
02.
Q: Which type of output filter does Grundfos recommend?
A: Sine wave filter
02.
Q: Which type of output filter does Grundfos recommend?
A: dV/dt filter
03.
Q: What is a general rule of thumb when it comes to a motor cable?
A: It must always be submerged in liquid
03.
Q: What is a general rule of thumb when it comes to a motor cable?
A: It must always be used in the air
03.
Q: What is a general rule of thumb when it comes to a motor cable?
A: It must be larger than the drop cable
04.
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
04.
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
04.
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
05.
Q: The larger the cross-sectional area of the cable, the lower the energy losses. True or false?
A: True
05.
Q: The larger the cross-sectional area of the cable, the lower the energy losses. True or false?
A: False
06.
Q: What is the main advantage of using a variable frequency drive in submersible pumps?
A: It allows you to regulate your installation
06.
Q: What is the main advantage of using a variable frequency drive in submersible pumps?
A: It is much quieter
06.
Q: What is the main advantage of using a variable frequency drive in submersible pumps?
A: It is easy to install