Cable tensioning cycling system

A cable testing system, comprising:

• a first storage reel for paying out a cable to be tested;
• a first moveable sheave to receive the cable from the first storage reel and disposed in series with a second moveable sheave, wherein rotation of the first moveable sheave and the second moveable sheave is controlled by a first drive;
• a moveable tensioning sheave to receive the cable from the second moveable sheave, the moveable tensioning sheave being coupled to a power source;
• a third moveable sheave to receive the cable from the moveable tensioning sheave and disposed in series with a fourth moveable sheave, wherein rotation of the third moveable sheave and the fourth moveable sheave is controlled by a second drive;
• a first clutch and a second clutch operably coupled between at least two of the first moveable sheave, the second moveable sheave, the third moveable sheave, and the fourth moveable sheave;
• and
• a second storage reel to receive the cable from the fourth moveable sheave.

A cable testing system, comprising:

• a first storage reel for paying out a cable to be tested;
• a first moveable sheave to receive the cable from the first storage reel and disposed in series with a second moveable sheave, wherein rotation of the first moveable sheave and the second moveable sheave is controlled by a first drive;
• a third moveable sheave to receive the cable from the second moveable sheave and disposed in series with a fourth moveable sheave, the third moveable sheave and the fourth moveable sheave being disposed in parallel to the first moveable sheave and the second moveable sheave, wherein rotation of the third moveable sheave and the fourth moveable sheave is controlled by a second drive;
• a moveable tensioning sheave coupled to a hydraulic power source, the moveable tensioning sheave positioned to receive a portion of the cable between the second moveable sheave and the third moveable sheave and apply a tension to the cable;
• and
• a second storage reel to receive the cable from the fourth moveable sheave.