Reynard High Voltage Connection System for Inter-Array Cables - Offshore Wind Turbine Animation

Reynard company (V&SH) is an offshore contractor, specialized in testing and terminations, cable repairs and outfitting of offshore high voltage assets. Other services cover testing, fault finding and pre-assembly, all on the cutting edge of innovative new developments in the renewable energy sector. Below you can read general overview of high-voltage (HV) connection systems for inter-array cables used in offshore wind farms:

HV Connection System for Inter-Array Cables

High-voltage (HV) connection systems for inter-array cables are crucial components in offshore wind farms, facilitating the transmission of electricity from individual turbines to offshore substations. Here are the key aspects typically associated with such systems:

1. Components of HV Connection Systems

1. Cable Terminations: Cable terminations are used to connect the inter-array cables to the wind turbine and the offshore substation. These terminations must be robust and designed to withstand the marine environment, including saltwater exposure and mechanical stresses.

2. Joints: Joints are used to connect different lengths of inter-array cables together. They ensure electrical continuity and mechanical strength while maintaining the insulation integrity of the cables.

3. Connectors: Connectors provide the interface between cables and other electrical components, such as transformers or switchgear, within the offshore substation. They are designed for high electrical conductivity and mechanical reliability.

2. Design Considerations

1. Reliability: HV connection systems must be highly reliable to ensure continuous electricity transmission from the wind turbines to the offshore substation and eventually to the onshore electrical grid.

2. Environmental Protection: Components of the HV connection systems are designed to withstand harsh marine environments, including corrosion-resistant materials and robust sealing mechanisms to prevent water ingress.

3. Ease of Installation and Maintenance: Design considerations include ease of installation to minimize downtime during construction and maintenance activities offshore. This may involve modular designs and standardized connectors.

3. Installation and Testing

1. Installation: HV connection systems are installed during the construction phase of the offshore wind farm. Specialized vessels and equipment are used for cable laying, termination, and jointing operations.

2. Testing: Rigorous testing is conducted to ensure the integrity and performance of the HV connection systems. This includes electrical testing (such as insulation resistance and partial discharge testing) and mechanical testing (such as cable pulling tests).

4. Standards and Regulations

1. Compliance: HV connection systems must comply with international standards and regulations governing electrical installations in offshore environments. This ensures safety, reliability, and compatibility with grid connection requirements.

Conclusion

HV connection systems for inter-array cables play a crucial role in the efficient and reliable operation of offshore wind farms. They ensure the seamless transmission of electricity generated by wind turbines to the onshore grid, contributing to the growth of renewable energy sources and sustainability goals globally.

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