Page 215 - Fluid Power Engineering
P. 215
Factors
Partial
Safety
*
N
Analysis
of
Type
U
F
events
extreme
Conditions
of
extrapolation
Other
For
+ 2m/s N U N U N U N U network electrical of loss or fault system Control A U fault electrical internal preceding or system Protection A U of loss including fault electrical internal or External network electrical * F faults system electrical or protection, Control, network el
V out
V out < V out < V hub − 2m/s, V r , V r V out < V out < V hub ± 2m/s, V out V out < V out < ± 2m/s, V out ± 2m/s, V out V out < ± 2m/s, V out ± 2m/s, V out period recurrence period recurrence period recurrence period recurrence by stated period recurrence
V out
<
Condition V hub < V hub < V in < < V r = V hub < V hub V hub < < V r = V hub < V hub < V r = V r = V hub < V r = V r = 50-year 50-year 1-year 0.7 V ref < 1-year be to V maint manufacturer 1-year 61400-1
Wind V in NTM NTM V in ETM ECD V in EWS V in NTM V in NTM V hub EOG V in NTM V in NWP V hub EOG V hub EDC V in NWP V hub EOG V hub NTM EWM EWM EWM V hub NTM EWM NTM EWM IEC from
occurrence idling) maintenance Cases
plus shutdown or still conditions Load
production production shutdown (standing fault and assembly, Design
Design Situation Power Power fault of up Start Normal Emergency Parked Parked Transport repair and from IEC. 9-4 TABLE
187