Our Products

Services of the highest quality, solutions that win you over: Explore the innovative and classic products from HSP.

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Research and Development

For HSP, each day is an investment in the future. Discover our Research & Development division and see how we shape tomorrow’s solutions – today.

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For decades, we have been driving innovation in the high-voltage sector. By promoting new perspectives, we remain at the cutting edge.

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Proven High-Voltage Performance

Wall bushings

HSP's wall bushings provide the perfect solution for air-insulated switchgear installations where space efficiency and cost optimization are paramount. Designed with proven cast resin technology and available in both porcelain and silicone composite insulator options, these bushings deliver reliable performance from 52 to 800 kV.

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Your competitive advantages at a glance

Custom Engineered Solutions

HSP's wall bushings are precisely dimensioned to meet each customer's specific technical requirements and installation constraints. This tailored approach ensures optimal performance and seamless integration into existing infrastructure, eliminating costly modifications or compromises.

Optimized Space Design

Every HSP wall bushing is engineered with an optimized size that maximizes performance while minimizing spatial footprint. This compact design approach reduces installation complexity and allows for more efficient use of valuable substation real estate.

Reduced Construction Costs

HSP wall bushings are designed to minimize overall building and installation expenses through simplified mounting requirements and reduced structural demands. This cost-effective approach delivers significant savings in both initial construction and long-term operational expenses.

Wall bushings – Tailored Engineering Excellence

Each wall bushing is custom-engineered to meet specific project requirements, ensuring seamless integration while minimizing building costs and maximizing operational efficiency. Whether for new construction or retrofit applications, HSP wall bushings offer the ideal balance of technical excellence, space optimization, and economic value.

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SEW Wall Bushings: Tailored for Every Application

Featuring the highest mechanical strength through fiberglass tube insulator technology and optimized sizing for lowest building costs, these dry-insulated bushings are engineered for voltages up to 500 kV. Whether you need hall-to-hall or open-air configurations, current transformer integration, or specialized installation angles, SEW bushings provide the perfect balance of strength, economy, and adaptability for your substation design.

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Advanced Wall Bushing Solutions for Next-Generation Substations

As the global energy landscape evolves toward renewable sources and smart grids, HSP's custom-engineered wall bushings provide the space-efficient, cost-optimized solutions that modern substations demand. These oil-free, maintenance-minimal wall bushings directly support the industry's push for more sustainable infrastructure while future-proofing electrical networks through optimized design and reliable performance.

Our aim ist to offer our customers future-proof solutions – for sustainable benefits.

hans_gronau Hans Julius Gronau Managing Director
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About HSP

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Technology