Vfd presentation
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Transcript of Vfd presentation
![Page 1: Vfd presentation](https://reader033.fdocuments.in/reader033/viewer/2022061214/549c8ad6b47959b7318b476a/html5/thumbnails/1.jpg)
Variable Frequency Drives
![Page 2: Vfd presentation](https://reader033.fdocuments.in/reader033/viewer/2022061214/549c8ad6b47959b7318b476a/html5/thumbnails/2.jpg)
Variable Frequency Drives• Where we use them
• Why we use them
• Precautions
![Page 3: Vfd presentation](https://reader033.fdocuments.in/reader033/viewer/2022061214/549c8ad6b47959b7318b476a/html5/thumbnails/3.jpg)
Where We use themVariable Frequency Drives (VFDs) are used for motor control in various system applications including:
• AHU Supply Fans
• AHU Return Fans
• Hot Water Pumps
• Chill Water Pumps
• Cooling Towers
• Chillers
![Page 4: Vfd presentation](https://reader033.fdocuments.in/reader033/viewer/2022061214/549c8ad6b47959b7318b476a/html5/thumbnails/4.jpg)
Why we use them• Slower startup of large motors
• Speed control of motors
• Reduce maintenance cost
• Energy efficient
![Page 5: Vfd presentation](https://reader033.fdocuments.in/reader033/viewer/2022061214/549c8ad6b47959b7318b476a/html5/thumbnails/5.jpg)
Precautions• ***ELECTRICAL POWER CAN REMAIN IN
VFD SYSTEM EVEN AFTER DISCNNECT IS SWITCHED OFF*** http://www.youtube.com/watch?v=pagfHf1-etw
• Running VFDs in HAND can cause system issues and damage equipment
• Voltmeters and Amp Meters will not give accurate readings of voltage and current from a VFD.
![Page 6: Vfd presentation](https://reader033.fdocuments.in/reader033/viewer/2022061214/549c8ad6b47959b7318b476a/html5/thumbnails/6.jpg)
![Page 7: Vfd presentation](https://reader033.fdocuments.in/reader033/viewer/2022061214/549c8ad6b47959b7318b476a/html5/thumbnails/7.jpg)
Questions?