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Page de couverture de Morten Handberg Decodes Blade Damage Categories

Morten Handberg Decodes Blade Damage Categories

Morten Handberg Decodes Blade Damage Categories

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 Morten Handberg, Principal Consultant at Wind Power LAB, returns to discuss blade damage categorization. From transverse cracks and leading edge erosion to carbon spar cap repairs, he explains what severity levels really mean for operators and why the industry still lacks a universal standard. Sign up now for Uptime Tech News, our weekly email update on all things wind technology. This episode is sponsored by Weather Guard Lightning Tech. Learn more about Weather Guard’s StrikeTape Wind Turbine LPS retrofit. Follow the show on Facebook, YouTube, Twitter, Linkedin and visit Weather Guard on the web. And subscribe to Rosemary Barnes’ YouTube channel here. Have a question we can answer on the show? Email us! Welcome to Uptime Spotlight, shining Light on Wind. Energy’s brightest innovators. This is the Progress Powering tomorrow. Morten, welcome back to the program. Thanks, Allen. It’s fantastic to be back again. Boy, we have a lot to discuss and today we’re gonna focus on categorization of damage, which is a super hot topic across the industry. What does a cat five mean? What does a category three mean? What does a category 5.9 I’ve I’ve seen that more recently. Why do these defect categories matter? Morten Handberg: Well, it matters a lot because it really tells you as, uh, either an OEM or as an operator, how should you respond to your current blade issue. So you need to have some kind of categorization about what the defect type is and what the severity is. The severity will tell you something about the repairability and [00:01:00] also something about the part of the blade that is affected. The type of the defect tells you something about what is the origin From an operational point of view, it doesn’t make as much sense in a way because you really just wanna know, can this be repaired or not? You know? And you know, what does it need to repair? That’s what you need, what you really need to focus on as an operator, whether it’s then del elimination, erosion, peeling. Uh, transverse cracks, it’ll all come down to repairs. It does matter for you because it will tell you an underlying, you know, are there reason why I’m keep seeing all these damages? So that’s why you need to know the category as well. But purely operational. You just need to know what is the severity side know, what does it take to repair it? Allen Hall: So as the operator, a lot of times they’re getting information from different service providers or even the OEM. They’re getting multiple inputs on what a damage is in terms of a category. Are we getting a lot of conflicting information about this? Because the complaint from [00:02:00] I hear from operators is the OE EMM says this is a category four. The ISP says is a category five. Who am I to believe right Morten Handberg: now? Well, there is a lot of, a bit different opinions of that. It almost becomes a religious issue question at some point, but it, it really dives down to that, you know, there is no real standardization in the wind industry. And we’ve been discussing this, uh, I wanna say decades, probably not that much, but at least for the past 11 years I’ve been, been hearing this discussion come up. Uh, so it’s, it’s something this was just been struggling with, but it also comes down to that. Each OEM have their own origin. Uh, so that also means that they have trended something from aeronautics, from ship building industry, from, you know, uh, from, from some other composite related industry, or maybe not even composite related. And that means that they are building their own, uh, their own truth about what the different defects are. There is a lot of correlation between them, but there is still a lot of, lot of tweaks [00:03:00] and definitions in between and different nomenclature. That does add a a lot of confusion. Allen Hall: Okay, Morten Handberg: so Allen Hall: that explains, I mean, because there isn’t an industry standard at the moment. There is talk of an industry standard, but it does seem like from watching from the outside, that Europe generally has one, or operators specifically have one. Uh, EPRI’s been working on one for a little while. Maybe the IEC is working on one, but there isn’t like a universal standard today. Morten Handberg: There is not a universal standard. I mean, a lot of, a lot of OEMs or service providers will, will, will claim that they have the standard, they have the definition in wind power lab. We have our own. That we have derived from the industry and in, in general. But there is not an, uh, an industry agreed standard that everyone adheres to. That much is true. You could say in Europe, a lot of owners have come together, uh, in the Blade Forum, and they have derived, there’s a standard within that. Um, uh, and with a lot of success, they’d written, the [00:04:00] Blade Hamburg I think was very helpful because it was operator driven, um, approach. ...
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