Month: August 2012

  • Wind farm substation: an overview

    Almost in every wind farm a step-up substation is built to collect all the energy generated by the turbines and received through the MV cables. The exceptions are new wind farms or existing wind farms extensions built near a substation that can be upgraded to absorb the additional energy produced: in these cases, only a…

  • Power curve: what is it and how to measure it

    A power curve is a relationship between free wind speed at the WT location and the associated expected power being produced. Power curve warranties are often included in contracts, to assure the wind turbine performs according to specification. Here you have an example of how it looks like: It is measured following international standards to…

  • Manitowoc cranes AutoCAD DWG blocks

    Other AutoCAD blocks of cranes that you may find useful. Manitowoc cranes are not very common in europe but they are widely used in the states. Manitowoc 16000 Crane AutoCAD Block Manitowoc 18000 Crane AutoCAD Block

  • Horizontal directional drilling (HDD) in wind farms

    Horizontal directional drilling is a technique frequently used in wind farms when we have the need to cross the pipes below roads, rivers or even the sea. Here you have the picture of 2 slightly different solutions, one using directional drilling and the other with horizontal drilling. The installation of a pipe using directional drilling…

  • Terex Demag cranes AutoCAD DWG blocks

    Here you have my collection of Terex Demag cranes: Terex Demag CC2800 narrow track crane AutoCAD block Terex Demag CC 6800 AutoCAD DWG block More Liebherr cranes here.

  • Wind turbines foundations grouting

    Grout is an extra high properties material that is normally used in wind farm construction just below the tower flange, above the foundation. It is a transition material, designed to have a very high fatigue resistance. All the dynamic loads need to be transferred and absorbed by the grout connecting the tower to the foundation…