Barry R Contrael

Title: **Barry R. Contrael: Innovator in Circuit Breaker Technology**

Introduction

Barry R. Contrael, an accomplished inventor based in Cumming, GA, has made significant contributions to the field of electrical engineering. With a total of three patents to his name, Contrael's work focuses primarily on circuit breaker technologies designed to enhance safety and efficiency in electrical systems.

Latest Patents

One of Contrael's most notable patents is for a circuit breaker distribution system configured to provide selective coordination. This innovative system employs a solid-state switch as the main or upstream breaker, paired with a branch or downstream breaker that incorporates overcurrent protection. The solid-state switch is equipped with a microcontroller that performs several key functions. It allows repeated pulses of current to flow to the downstream breaker in the event of an overload or short circuit. The microcontroller also establishes a maximum current limit for the solid-state switch, referred to as the "chop level," which is set higher than the rated current of the circuit breaker to prevent damage from repeated pulses. Furthermore, the system optimizes pulse intervals to align with the system voltage waveform, ensuring that chopped pulses are more effective for de-latching the downstream breaker at crucial times.

Career Highlights

Mr. Contrael currently works with Siemens Industry, Inc., where he applies his expertise to develop advanced electrical solutions. His work significantly contributes to the improvement of safety and reliability in electrical distribution systems.

Collaborations

Throughout his career, Contrael has collaborated with notable colleagues, including Jorg Sizemore and James Edward Ferree. Their teamwork exemplifies the synergy between skilled professionals in achieving innovative solutions in electrical engineering.

Conclusion

Barry R. Contrael stands out as a prominent inventor whose patents have the potential to shape the future of circuit breaker technology. His dedication to innovation and collaboration continues to inspire advancements in electrical systems, ensuring safety and efficiency for users and industry professionals alike.