Roger Ledru

Title: The Innovations of Roger Ledru

Introduction

Roger Ledru is an accomplished inventor based in Pont De Cheruy, France. He is known for his significant contributions to the field of electrical engineering, particularly in the development of braking resistors for high tension electrical networks. His innovative approach has led to the creation of a patented technology that enhances the efficiency and safety of electrical systems.

Latest Patents

Roger Ledru holds a patent for a braking resistor designed for high tension electrical networks. This invention features a braking resistance that includes a ceramic envelope housing a stack of conducting solid disks made from carbon-based ceramic. The resistivity of these disks ranges from 100 Ω·cm to 1000 Ω·cm. The design incorporates a tube that maintains the stack, while a spring exerts pressure on the disks. Additionally, electrical contact is established between each end of the stack and respective conducting plates located at the ends of the envelope, which is filled with nitrogen at a pressure of 1 to 2 bars. This innovative design improves the performance and reliability of braking systems in electrical applications.

Career Highlights

Roger Ledru has made significant strides in his career, particularly through his work with the company Société Anonyme Dite Alsthom. His expertise in electrical engineering and innovative mindset have positioned him as a key player in the development of advanced electrical components. His patent reflects his commitment to enhancing the functionality and safety of electrical networks.

Collaborations

Throughout his career, Roger has collaborated with notable colleagues such as Edmond Thuries and Van Doan Pham. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas, contributing to the advancement of technology in their field.

Conclusion

Roger Ledru's contributions to electrical engineering, particularly through his patented braking resistor technology, demonstrate his innovative spirit and dedication to improving electrical systems. His work continues to influence the industry and inspire future advancements in technology.