When making the decision to use a DC or AC inverter, you may consider things like costs, maintenance, parts, upkeep, and more. To help you with the decision-making process, here are some of the key ways a frequency inverter can improve machine automation.
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They can be used in all locations
When operating an AC inverter, there are no sparks, making it a great option for more corrosive or humid environments. On the other hand, a DC drive produces a lot of sparks, which can make it potentially dangerous in environments where water is present. It's something to keep in mind, especially when it comes to operating HVAC units, for example.
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They have no upper speed limit
The lack of an upper speed limit means operators can have greater control over the drive and its resulting speed. By changing the frequency of the electrical power supply, the operator can change the speed of the AC drive, making it a useful device in a wide variety of situations and applications.
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They have a highly dynamic response
Speaking of speed changes, an AC inverter has a high dynamic response, so it can handle sudden speed changes very well. This is useful when launching highly efficient machines and improving production results and experiences. A DC drive will take longer to adjust to a speed change, which can result in reduced efficiency. Likewise, PQ Ovens help improve the efficiency of industrial ovens.
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They are less bulky and expensive
One of the biggest advantages of an AC inverter is that it can help reduce machinery expenses. The parts and components involved in an AC inverter tend to be smaller and more compact than those in a DC inverter, making AC inverters cheaper. Furthermore, the space that a frequency converter can save is another way to contribute to cost reduction.
An AC inverter does not require switching or has a rectifier, so it consumes less energy than a DC inverter. This is yet another way a frequency inverter can reduce costs for operators and machine builders.
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They require less maintenance
An AC unit outperforms a DC unit in this case. One reason is that an AC inverter's brushes last longer, so they can withstand higher speeds and longer periods of work. Over time, this results in fewer maintenance checks and brush replacements. Additionally, the converter and inverter in an AC inverter help with its efficiency and allow for fewer inspections and routine maintenance.
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They are more energy efficient
Compared to DC drives, and similarly to electronically commutated motors, AC drives have better energy efficiency. For one, they don't need all the maintenance and replacements that DC units require. This allows them to continue working effectively for longer periods.
They can also handle speed changes much better than DC drives, another way to use power more efficiently. Finally, it is not uncommon for an AC drive to have a few different operating parameters that allow for more efficient use of the machinery. This additional benefit can also help operators make better use of energy and resources.
