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VLT
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Drives
VLT
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Frequency Drives - Save Money and Energy
VLT
®
frequency drives replace on-off operation – with the associated wear and tear and high energy consumption – with a smoother and more precise electronic speed control. Allowing plant optimisation and energy saving within HVAC, water and wastewater and many other applications.
Like in the Chester Zoo (UK) where VLT drives not only provide optimum conditions for elephants, jaguars and penguins. At the same time the drives help saving up to 78% energy. 55% of these savings are directly attributable to the VLT frequency drives.
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Read more about saving energy with VLT frequency drives
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Watch the Chester Zoo energy saving video and read more about this application
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VLT
®
Low Harmonic Drive eliminates disturbances on the grid
Danfoss Drives has launched the first mass-produced low harmonic drive.
The VLT
®
Low Harmonic Drive eliminates disturbances on the supply grid by actively imposing currents into the grid so that a high quality sine wave is restored and maintained.
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Harmonic distortion is costing you a fortune
All electrical equipment, including cables, is designed based upon a common assumption – that it will be used on a pure sinusoidal supply. If the supply is corrupted with harmonic distortion, then the equipment is operating outside of its design parameters, potentially to its detriment.
The adverse effects of harmonic distortion can be severe and include:
• Limitations on supply and network utilisation
• Increased energy losses
• Increased kVAr costs
• Increased transformer, motor and cable heating
• Reduced equipment life-times
• Costly thermal trips
• Network resonance problems
• Sensitive control system malfunctions
The solution
Danfoss offers a number of very effective solutions to reduce harmonics, improve reliability and reduce operating costs.