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

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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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Solutions for Optimal Voltage Distribution

Bushings for gas-insulated switchgear

HSP's comprehensive bushing range delivers custom-engineered solutions with optimum voltage distribution for both gas-insulated and air-insulated applications. Featuring resin-impregnated paper technology and designed to handle fast voltage changes, these bushings provide reliable performance across voltage ranges from 52 to 800 kV and currents up to 4000 A, ensuring optimal performance and long-term reliability in demanding electrical environments.

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Strategic advantages for your operation

Voltage Distribution

HSP's switchgear bushings are engineered with advanced condenser grading technology that maintains optimal voltage distribution even during rapid voltage fluctuations. This superior design ensures consistent performance and prevents electrical stress concentrations that could compromise system reliability.

Proven Resin Technology

HSP's switchgear bushings utilize decades-proven cast resin insulation technology that has been field-tested in demanding switchgear environments worldwide. This reliable design eliminates the need for oil-filled systems, providing maintenance-free operation and consistent performance throughout the bushing's operational life.

Climate Resistant

HSP switchgear bushings are designed to operate reliably in very low ambient temperatures while maintaining flame-resistant properties for enhanced safety. This dual capability ensures dependable performance in harsh climatic conditions and provides critical fire protection in industrial switchgear installations.

Bushings for gas-insulated switchgear – Engineered for Peak Performance

HSP's switchgear bushings deliver unmatched performance with optimized voltage distribution technology that handles even the fastest voltage changes. Whether you need gas-insulated or air-insulated solutions, HSP's custom-engineered bushings ensure optimal switchgear performance across the full range of demanding electrical applications.

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SEKGFt: Gas-Insulated Switchgear Solutions

HSP's SEKGFt bushings provide optimum voltage distribution and proven cast resin insulation for gas-insulated switchgear applications from 73 to 550 kV. Featuring lightweight silicone composite housing with shock resistance and flame protection, these oil-free bushings deliver reliable performance in extreme conditions with custom adapter flanges designed to your specifications.

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Advanced Switchgear Solutions for Next-Generation Power Systems

As the global energy landscape evolves toward renewable sources and smart grids, HSP's oil-free switchgear bushings provide the reliable, maintenance-minimal solutions that modern electrical substations demand. By continuously investing in switchgear bushing innovation, HSP is not just meeting today's substation requirements but actively defining the standards for tomorrow's electrical switching systems, ensuring critical switchgear infrastructure remains reliable, safe, and efficient for generations to come.

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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