Risha Na

Title: Innovations by Risha Na: Pioneering Circuit Interruption Technology

Introduction

Risha Na is an accomplished inventor based in Chicago, Illinois. She has made significant contributions to the field of electrical engineering, particularly in the area of circuit interruption technology. Her innovative approach addresses critical challenges in DC power circuits, enhancing safety and efficiency.

Latest Patents

Risha Na holds a patent for a Direct Current Momentary Circuit Interrupter. This invention is designed to provide protection against short circuit faults in a DC power circuit. The momentary circuit interrupter operates in series with a mechanical switch, injecting a transient voltage pulse via a pulse transformer. This process reduces the DC fault current to near zero, allowing the mechanical switch to disconnect the faulty branch under a near zero-current condition. The power electronic circuit on the primary side of the transformer controls the discharge of multiple pre-charged capacitors to generate the transient voltage pulse during fault interruption. Notably, this system incurs no power loss during normal operation. The secondary winding of the pulse transformer is highly conductive, minimizing conduction power loss. This invention offers an ultrafast response to short circuit faults, significantly reduces overcurrent stress in power systems, and achieves ultralow conduction power losses.

Career Highlights

Risha Na is affiliated with the Illinois Institute of Technology, where she continues to advance her research and development efforts. Her work has garnered attention for its innovative solutions to complex electrical engineering problems. With a focus on enhancing the reliability and safety of DC power systems, Risha has established herself as a leading figure in her field.

Collaborations

Risha collaborates with esteemed colleagues, including Zheng John Shen and Yuanfeng Zhou. Their combined expertise fosters a dynamic research environment, driving forward the boundaries of electrical engineering innovation.

Conclusion

Risha Na's contributions to circuit interruption technology exemplify the impact of innovative thinking in electrical engineering. Her patent for the Direct Current Momentary Circuit Interrupter showcases her commitment to enhancing safety and efficiency in power systems. Through her work at the Illinois Institute of Technology, Risha continues to inspire future advancements in the field.