Published: 03/14/2006
| Question: | Power Line Harmonics and Installation Considerations for AC and DC Drives |
| Answer: | Yaskawa General-Purpose Inverter Technical Information
| Classification | Precautions on Application | Model | GN | Document No. | YEA-P-01-GN-01 |
| Title | Power Line Harmonics Considerations for DC Drives and AC Drives |  | | | |
Conclusion
The construction and protective features of the Yaskawa inverters with built-in DC Link Chokes eliminate the need for isolation transformers. Knowing harmonic distortion and using appropriate filtering on a system wide approach, insures a more reliable, cost effective solution. A DC Link Choke is just as effective at reducing harmonic current as a AC line reactor. Today many existing solid-state DC drives (most prevalent in the early 80's), electromechanical and fluid drives are rapidly being replaced by AC variable speed technology. High-maintenance DC drives and motors have been eliminated on extruder and other applications through the installation of Flux Vector AC drives, which closely match DC performance while eliminating maintenance. |
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Product Information:
| Product Group: | Inverters/Drives |
| Product: | F7 Drive |
| Applications: | |
| Category: | Harmonics; Isolation Transformers; Power Quality; Reactors |
Other Information:
SAFETY PRECAUTIONS AND INSTRUCTIONS FOR USE OF FAQ INFORMATION!
Please read and understand the product instruction manual before installing, servicing or operating Yaskawa products. FAQ content and illustrations are provided as technical advice to augment the information in manual, not superceed it. It is not possible to give detailed instructions for all types of installation or support activities. The information described in the FAQs are subject to change without notice to improve the product or FAQ. Yaskawa assumes no responsibility for errors or omissions or damages resulting from the use of the information contained in any FAQ.
All warnings, cautions and product instruction for product use must be followed. Installation, operation and maintenance should be carried out by qualified personnel. Failure to observe these and other precautions highlighted in the product manuals will expose the user to high voltages resulting in, serious injury or death. Qualified personnel are defined as individuals who are familiar with the installation, starting, operation and maintenance of Yaskawa products of the type described and have proper qualifications to perform the work.
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