ABB Ultra Low Harmonic Variable Speed Drives Understanding Harmonics To appreciate the full benefits of ABB’s Ultra Low Harmonic drives, it’s necessary first to understand the concept of harmonics. Essentially, harmonics are unwanted currents that flow within a power system, caused by non-linear electrical loads. Non-linear loads, such as variable speed drives, switch power on … Continue reading →
What is it Harmonic Distortion and where does it come from? For this blog article we are delighted to have George Dodwell, ABB Water Framework Manager – South, explain harmonic distortion and where it comes from: When we look at harmonic distortion (most often known simply as “harmonics”), I feel it’s best to start at … Continue reading →
Here ABB’s Martin Richardson reflects on feedback from the water industry on the issue of harmonic mitigation. Four years ago, ABB received CPD accreditation for a training course that looked at the effect of harmonics on the operation of water plants and ways in which their impact could be mitigated. The course targeted water industry … Continue reading →
Haven’t the last few months been rather surreal? I am guessing your company, like ours, are busy putting in new measures to keep staff and customers as safe as possible. In an effort kick start returning to a form of normality and to enable us to continue to add value to our customers, we are … Continue reading →
On the 14th May 2019 we hosted an ABB training day on Harmonics and Mitigation Methods for the Water Industry. The interest for the training was very high, both morning and afternoon sessions were fully booked within a day of publishing them, prompting us to add another date. The Course Itself The training day was … Continue reading →
New Date Added! Due to the high level of response we received we have added another date for the Harmonics and Mitigation Methods for the Water Industry training course. The first day was booked up in just two days, so we decided to add another on: Wednesday 12th June 2019 IDS are hosting a half day … Continue reading →
Harmonics are caused by non-linear loads on the network, such as fluorescent lights, computers and AC drives. When adding further drives at a site, the total harmonic load must be considered. Most drives have six-pulse diode rectifiers, which give relatively high levels of total harmonic distortion, about 40 percent. Twelve-pulse rectifiers were introduced some years … Continue reading →
This week we feature a recent article from ABB’s water industry manager for UK & IE, Stuart Foster. Writing in Drives & Controls, Stuart explains the challenges Water Companies face when it comes to harmonic pollution: “Have you noticed how a single word can mean one thing in one context, but something totally different in … Continue reading →
You must be logged in to post a comment.