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Vestas begins controlled restart in Sweden V112 collapse probe
ReCharge News|Andrew Lee|Feb 5, 2016
The Danish OEM – which is still investigating why the V112-3.0 MW came down – yesterday switched back on a single machine, which will be closely monitored by its technicians as they continue their inquiries. The remaining 31 turbines at Lemnhult were taken out of service following the collapse.
The Danish OEM – which is still investigating why the V112-3.0 MW came down – yesterday switched back on a single machine, which will be closely monitored by its technicians as they continue their inquiries. The remaining 31 turbines at Lemnhult were taken out of service following the collapse.
Vestas began a controlled restart of the 96MW Lemnhult Wind Farm in Sweden, the site of a Christmas Eve collapse of one of its 3MW turbines.
The Danish OEM – which is still investigating why the V112-3.0 MW came down – yesterday switched back on a single machine, which will be closely monitored by its technicians as they continue their inquiries.
The remaining 31 turbines at Lemnhult were taken out of service following the collapse, which caused no injuries but was the first such incident involving one of Vestas’ MW-class machines.
Vestas’ initial investigations point to a failure in the bolted flange between tower sections one and two.
The manufacturer said third-party metallurgists have found no problem with the bolt quality, …
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Vestas began a controlled restart of the 96MW Lemnhult Wind Farm in Sweden, the site of a Christmas Eve collapse of one of its 3MW turbines.
The Danish OEM – which is still investigating why the V112-3.0 MW came down – yesterday switched back on a single machine, which will be closely monitored by its technicians as they continue their inquiries.
The remaining 31 turbines at Lemnhult were taken out of service following the collapse, which caused no injuries but was the first such incident involving one of Vestas’ MW-class machines.
Vestas’ initial investigations point to a failure in the bolted flange between tower sections one and two.
The manufacturer said third-party metallurgists have found no problem with the bolt quality, and the early focus was on the bolt pre-tensioning procedure.
The single turbine restarted yesterday will be run in local-operation mode, said Vestas.
“Among other things this entails the tower being visually inspected every seven days until the definitive root cause has been determined and any required corrective actions taken.”
The restart plan was drawn up in conjunction with wind farm operator Stena Renewable and approved by local authorities.