When a VFD is installed with a pump, what happens if the valve for one irrigation zone is closed and another is open?
What does a VFD do?
How much energy can you expect to save when installing a VFD with the main pivot?
Which of the following is not an essential parameter to achieve high uniformity in sprinkler irrigation?
Fill in the blank with the correct option: Installing a VFD with a pivot ensures that the _______ at the sprinklers remain constant, thereby maintaining high irrigation uniformity.
Can a VFD be used as an over-frequency drive when pump performance needs to be increased?
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Q: When a VFD is installed with a pump, what happens if the valve for one irrigation zone is closed and another is open?
A: A pressure sensor notifies the VFD to reduce the pressure, and thereby the speed of the pump.
Q: When a VFD is installed with a pump, what happens if the valve for one irrigation zone is closed and another is open?
A: The pressure decreases in the zone that is open.
Q: When a VFD is installed with a pump, what happens if the valve for one irrigation zone is closed and another is open?
A: The power consumption increases by almost 50% compared with both zones open.
Q: What does a VFD do?
A: It changes the frequency of an electric current supplied to an electric motor
Q: What does a VFD do?
A: It changes the temperature of the pumped water
Q: What does a VFD do?
A: It improves sprinkler conditions
Q: How much energy can you expect to save when installing a VFD with the main pivot?
A: Minimum 10%
Q: How much energy can you expect to save when installing a VFD with the main pivot?
A: Minimum 15%
Q: How much energy can you expect to save when installing a VFD with the main pivot?
A: Minimum 20%
Q: Which of the following is not an essential parameter to achieve high uniformity in sprinkler irrigation?
A: Water temperature
Q: Which of the following is not an essential parameter to achieve high uniformity in sprinkler irrigation?
A: Water flow
Q: Which of the following is not an essential parameter to achieve high uniformity in sprinkler irrigation?
A: Water pressure
Q: Fill in the blank with the correct option: Installing a VFD with a pivot ensures that the _______ at the sprinklers remain constant, thereby maintaining high irrigation uniformity.
A: Energy
Q: Fill in the blank with the correct option: Installing a VFD with a pivot ensures that the _______ at the sprinklers remain constant, thereby maintaining high irrigation uniformity.
A: Irrigation time
Q: Fill in the blank with the correct option: Installing a VFD with a pivot ensures that the _______ at the sprinklers remain constant, thereby maintaining high irrigation uniformity.
A: Flow and pressure
Q: Can a VFD be used as an over-frequency drive when pump performance needs to be increased?
A: Yes
Q: Can a VFD be used as an over-frequency drive when pump performance needs to be increased?
A: No
Q: Can a VFD be used as an over-frequency drive when pump performance needs to be increased?
A: Yes, but only if the motor has enough reserve power