Sven Gunnar Wretemark

Title: Sven Gunnar Wretemark: Innovator in High Voltage Cable Technology

Introduction

Sven Gunnar Wretemark is a notable inventor based in Stockholm, Sweden. He has made significant contributions to the field of electrical engineering, particularly in the development of high voltage cable technology. His innovative approach has led to the creation of a unique cable design that enhances performance and safety.

Latest Patents

Wretemark holds a patent for a high voltage cable that features a metallic conductor core surrounded by an inner layer of semiconducting material. This design includes an insulation layer that encompasses the semiconducting layer, which is further protected by an outer semiconducting layer. The outer layer is strongly bonded to the insulation layer, with its outer surface resistivity carefully selected to be within the range of 10⁷ - 10⁹ ohm/square. This specific resistivity range is crucial as it equalizes the voltage distribution within the cable jacket and facilitates the splicing of cable ends and termination, as the outer semiconducting layer cannot be readily removed.

Career Highlights

Wretemark is associated with Telefonaktiebolaget Lm Ericsson (Publ), a leading telecommunications company. His work there has allowed him to apply his innovative ideas in practical applications, contributing to advancements in the industry.

Collaborations

Throughout his career, Wretemark has collaborated with notable colleagues, including Mats Gunnar Olsson and Carl Ove Tollerz. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Sven Gunnar Wretemark's contributions to high voltage cable technology exemplify the impact of innovation in electrical engineering. His patented designs not only enhance performance but also ensure safety in electrical applications. His work continues to influence the industry and inspire future advancements.