Flexibility at every rotation
The demands on connection technology for wind energy are high. With tower heights now well over 100 meters, copper-based Ethernet connections are reaching their limits. The solution for longer transmission distances is called "fiber optic". However, these fiber optic links in a wind turbine are subject to particularly stringent requirements.
FO between the blades and nacelle must be pluggable in order to reduce service and maintenance costs. In addition, fiber end-faces with angled physical contact (APC) technology are employed in measuring technology applications to minimize return loss. However, pluggable connectors with APC were previously only available in the IP 20 protection class, resulting in the additional use of encapsulated housings. With the development of a complete wiring solution between the blades and nacelle in protection class IP 65/67, the need for further housings is eliminated, which significantly facilitates handling during assembly and maintenance. Moreover, the metal version of the PushPull connector provides additional mechanical protection.
Product variants in the wind industry
The HARTING PushPull Fiber Optic family has also been supplemented with other product variants: The PushPull Extension Cord Adapter is a robust connector for the extension of PushPull cables available, which can be glued on a mounting plate in the wing. In addition, a Y-cable was developed. This duplex cable is split into two simplex cables just behind the connector through a Y-splitter to create the optical loop in the wing. HARTING PushPull has hitherto been restricted to physical contact (PC) contacting with a ground joint.
Thanks to a special assembly method, single-mode assemblies with angled physical contact (LC APC) are now available as well. These impress with extremely low attenuation values (< 0.25 dB) and very low scattering of attenuation in different cables. Reference measurements are required for operational startup.
In order to reduce the effort associated with these measurements, HARTING Technology Group has developed a PushPull “optical short circuit” loop connector. Other accessories such as protective caps and locking clips are also provided in order to prevent the accidental opening of the PushPull connector.
Your benefits at a glance:
- LC APC angled physical contact
- Custom cable assemblies meeting the toughest demands
- Complete range of acces-sories for fiber optic in harsh operating environments