International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 88

Wind turbines

 
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PT 61400-26 Project Leader & Members

Project Leader
National

Committee
Mr Robert W Sherwin
 US
Member
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National

Committee
Mr Martin Huus BjergeDK
Mr Werner BohlenDE
Mr Guillermo Carrascal LozanoES
Mr Víctor Cuadro UrunuelaES
Mr Harald DeckerDE
Mr Leon Eliassen NotkevichNO
Mr Eugenio Gómez SantiagoES
Mr Christopher GrayAT
Ms Henriette HaavikNO
Mr Keir HarmanGB
Mr Roger R HillUS
Mr Yuanlong HuUS
Mr Takahiro IshiyamaJP
Mr Knud JohansenDK
Mr Namho KyongKR
Mr Staffan LindahlGB
Mr James R MaughanUS
Ms Karen Meyer-TruelsenDE
Mr Peter NachbaurAT
Richard NicholDK
Mr Yasuyuki OguroJP
Ms María Pineda JimenoES
Mr Frank Joseph PribilUS
Mr Sigi PsutkaAT
Mr Niels RabenDK
Mr Jörn RassowDE
Mr Michael RüterDE
Mr Anton SimmonsGB
Mr Riaan SmitZA
Mr Yukinobu UchidaJP
Ms Larisa Vladimirovna VariginaRU
Mr Mike WöbbekingDE

Title & Task

PT 61400-26

Availability for wind turbines and wind turbine plants

 

The technical specification shall define generic terms of wind turbine systems and environmental constraints in describing system and component availability, lifetime expectancy, repairs and criteria for determining overhaul intervals. Ideally the specification shall define terminology and generic terms for reporting wind power based generating unit reliability as well as availability measurement.


A generating unit includes all equipment up to the termination point defined in the distribution code (grid code) agreed between the generation party and the distribution / transmission party. Reliability encompasses measurement of the ability of the wind turbines to perform their intended function. Availability measurements are concerned with fractions of time a unit is capable of providing service, taking environmental aspects into account. Environmental aspects would be wind and other weather conditions, as well as grid and substation conditions.


In case further common definitions are required, coordination with other groups should be undertaken - to obtain a set of definitions relevant to electricity generation using wind power, consistent with IEV415. Adoption of IEEE 762 (2006) as a template for the specification and the opportunity to collaborate with the North American Electric Reliability Corporation (NERC) Generating Availability Data System (GADS) shall receive due consideration.