Yueming Zhu

Title: Yueming Zhu and His Patent for Online Self-Checking of Gas Density Relays.

Introduction

Yueming Zhu is an inventor based in Shanghai, China, and works at Shanghai Roye Electric Co., Ltd. His patent work addresses equipment monitoring and maintenance in electrical power systems.

Latest Patents

Zhu is associated with 1 patent: “Gas Density Relay with Online Self-Checking Function and Checking Method Therefor.” The invention combines a gas density relay with pressure and temperature sensors, a gas chamber, a pressure-regulating mechanism, a contact-signal sampling unit, and an intelligent control unit.

The system regulates pressure to trigger the relay’s contacts and sends the resulting signals to the control unit. The unit uses the density value at the time of contact action to determine the relay’s action value and/or return value, enabling checks without requiring a maintainer to visit the site. The pressure-regulating mechanism is separate from the SF6 gas path of the relay and electrical equipment, reducing sealing requirements while supporting grid reliability and lower manufacturing costs.

Career Highlights

Zhu’s listed patent reflects a focus on automating the verification of gas density relays used in electrical equipment. By enabling online checks, the invention aims to reduce the need for on-site maintenance work.

Collaborations

The provided information lists Xiaowei Ye and Haiyong Jin as Zhu’s coworkers. It does not specify their roles in the patent.

Conclusion

Yueming Zhu’s patent presents an approach to checking gas density relays remotely, with the goal of simplifying maintenance and supporting reliable power-grid operation.