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Author Topic: Siemens pays price for bearings and blades issues  (Read 1465 times)
stannn
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« on: November 07, 2014, 01:47:55 PM »

http://www.rechargenews.com/wind/1382803/Siemens-Wind-pays-price-for-bearings-blade-issues
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Fintray
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« Reply #1 on: November 07, 2014, 01:57:38 PM »

So what else did Lisa say?
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stannn
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« Reply #2 on: November 07, 2014, 02:12:16 PM »

Mmmmm..... It was all there when I opened it.
The massive charges Siemens incurred for inspecting and replacing main bearings in onshore wind turbines during its financial fourth quarter were due to an early degradation of the bearings in certain machines, Siemens Energy chief Lisa Davis said at a press conference. 
"These issues appear to be related to recent batches of bearings and we're in close discussions with the supplier that we have for these bearings," Davis said, without disclosing the supplier's name.

The problem affects certain batches from one supplier of bearings for Siemens' 3MW direct-drive wind turbines, a company press official told Recharge.

As all of the turbines are equipped with the company's turbine condition monitoring (TCM) system, Siemens was able to detect the development of such damage via remote diagnostics early on, he added.

The second reason for the charges that added up to 223m ($279m) during the quarter were costs incurred for blade repairs caused by "harsh weather conditions" both onshore and offshore, Davis explained.

"This is a topic that we see within the industry and where we have already successfully implemented a design change for leading-edge protection in our manufacturing facilities," she said.

"We will also roll the similar retrofit out to affected locations." The blades came from Siemens' own manufacturing facilities, the press official said.

Problems at bearings and blades have repeatedly haunted the wind power industry.

German utility RWE Innogy earlier this year re-tendered a contract to equip the 332MW Nordsee 1 offshore wind farm in the German North Sea after a technical hitch relating to bearings was found in a handful of turbine manufacturer Senvion's flagship 6.2MW offshore turbines.

Senvion, a unit of India's Suzlon, previously had been pre-selected to provide the turbines, which would represent a very important order for the company.

US giant GE earlier this year was hit by a manufacturing "anomaly" that caused a number of blade breakages, including two incidents at a 200.6MW Invenergy wind farm in Nebraska.
« Last Edit: November 07, 2014, 02:14:52 PM by stannn » Logged

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clockmanFR
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« Reply #3 on: November 07, 2014, 07:09:39 PM »

Yep, bearings run the World, but does any one test them.

As I have said before, I have come across FAKE bearings, or ones that I could file, ie not hardened and tempered properly, at a ratio of 1 in 10 in branded units.

Take your file lads.........
« Last Edit: November 07, 2014, 07:37:21 PM by clockmanFR » Logged

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Fintray
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« Reply #4 on: November 08, 2014, 10:43:01 AM »

You would think that for a part that is so critical there would be very good quality assurance throughout the manufacturing process?
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