Tag: conductor hardware

  • Bolted terminals: Powering Peru’s energy efficiency

    Wind and solar hybrid project

    Peru’s power sector is now starting an investment cycle that includes the construction of generation and transmission facilities. The country currently has 33 power production projects under construction. This investment of $6.5 billion is expected to result in over 5,000 MW of new installed capacity between 2026 and 2036. The project includes eleven solar power plants, five wind farms, sixteen hydropower projects, and one natural gas-fired power plant. Furthermore, the reported 52 transmission projects total more than US$3 billion in investment. This increases the requirement for infrastructure such as transmission poles, wires, insulators, suspension and tension hardware, bolted terminals, grounding devices, and surge protection. Transmission infrastructure provides an electrical link between generation facilities and important consuming centers. The transmission projects evacuate electricity from new power plants, increase transmission capacity, reduce network congestion, improve system reliability, and strengthen the SEIN.

    Bolted terminals provide secure, dependable, and long-lasting connections for solar, wind, and transmission installations. They offer a secure, low-resistance, and long-lasting electrical and mechanical joint in adverse environmental conditions. Terminals, such as mechanical lugs and splices, link big wires to switchgear, transformers, combiner boxes, and bus bars. This ensures a solid connection, lowering electrical resistance and heat generation. Bolted terminals are intended to transport currents for large-scale power generation. The terminals must withstand dynamic loads such as wind, vibration, and thermal expansion. The terminals are made of corrosion-resistant materials that are suitable with both copper and aluminum conductors, preventing galvanic corrosion.

    Quality assurance for bolted terminals used in Peru’s power generation projects

    Bolted terminals connect conductors to equipment terminals, busbars, transformers, switchgear, substations, and other electrical components. Improving their quality is critical as the government increases solar and wind energy and invests in transmission infrastructure. Quality assurance for the clamp eliminates faults that can result in excessive contact resistance, localized heating, voltage dips, corrosion, arcing, and electrical failure. The terminals’ QA process includes material quality control, dimensional inspection, electrical conductivity testing, mechanical load testing, torque and fastening quality, contact-surface quality, corrosion resistance testing, and fastener quality assurance.

    Quality-assured bolted terminal

    QA inspects bolt and nut grades, washer size, thread correctness, surface treatment, hardness, tensile strength, and corrosion resistance. Quality assurance assures that the bolted terminals provide the low-resistance, mechanically secure, and corrosion-resistant connections essential for reliable operation of renewable generation projects

    Deployment of bolted terminals in Peruvian power generating projects

    Bolted terminals create a secure and conductive connection between conductors and electrical devices. Peru now generates energy through solar, wind, hydropower, and natural gas projects. With increased investment in transmission networks, bolted terminals will aid in the evacuation of generated power and strengthening the national grid. The following are the roles of bolted terminals in the infrastructure.

    Bolted terminals maintain low-resistance current flow
    • Solar power projects—bolted terminals connect PV conductors to combiner boxes, connect combiner boxes to inverters, and connect inverters to transformers. They help maintain continuous, low-resistance current flow despite outdoor exposure and mechanical stresses.
    • Wind power projects—the terminals connect generator conductors to electrical equipment. They also connect transformer terminals to cables, busbars, or other electrical equipment.
    • Natural gas power plants—bolted terminals provide electrical interfaces between the generator output system. They also allow the transfer of generated electricity into the plant’s medium- or high-voltage electrical system.
    • Transmission infrastructure—the terminals provide connections between circuit breakers, disconnector, current transformers, voltage transformers, power transformers, and surge arresters.
    • Providing mechanical stability—the bolted terminals also maintain the physical integrity of the electrical connection. They resist forces from conductor tension, vibration, thermal expansion, wind loading, and equipment vibration.

    Peruvian power generation investments encourage energy efficiency

    Peru’s investment in power generation goes beyond simply increasing electricity supply. Investments can help Peru improve its energy efficiency in a variety of ways. This is through:

    1. Increasing the share of efficient renewable generation—solar and wind generation converts available energy resources into electricity without the need for fuel combustion.
    2. Reducing energy losses through transmission infrastructure—modern transmission infrastructure improved efficiency by increasing transfer capacity, reducing network congestion, improving voltage management, and connecting renewable resources with demand centers.
    3. Improving use of Peru’s renewable resources—the investments allow the country to transform more of its domestic resources into useful electricity.
    4. Diversifying the generation mix—the investment combines solar, wind, hydropower, and natural gas. This helps improve the operational efficiency of the electricity system.
    5. Improving grid reliability and reducing inefficient operating conditions—Peru‘s electricity strategy emphasizes a reliable, continuous, and efficient electricity system.