Location History:
- Hengelo (O), NL (1981)
- Hengelo, NL (1981 - 1986)
Company Filing History:
Years Active: 1981-1986
Title: Bertus Griesen: Innovator in High Voltage Technology
Introduction
Bertus Griesen is a notable inventor based in Hengelo, Netherlands. He has made significant contributions to the field of high voltage technology, holding three patents that showcase his innovative approach to electrical engineering.
Latest Patents
One of his latest patents is a method for switching in a three-phase high voltage circuit. This method involves interrupting an inductive load in a three-phase, high voltage network using a switch with quick dielectric recovery, specifically a vacuum switch. The design ensures that two of the three vacuum switches open at least one-third of a cycle of the network frequency later than the first vacuum switch, which helps prevent high over-voltages caused by virtual chopping. Another significant patent is for high tension vacuum switches. This invention features two relatively axially movable switching contacts and two annular electrodes that shield the open contacts from excessive electric fields. Each shield is associated with a respective switching contact and projects slightly beyond the contact surface to provide a field-shielding effect when the contacts are open. Notably, at least one of the shielding electrodes is capacitively coupled with its respective switching contact, allowing for smaller overall dimensions of the switch.
Career Highlights
Bertus Griesen is currently employed at Hazemeijer B.V., where he continues to develop innovative solutions in high voltage technology. His work has been instrumental in advancing the efficiency and safety of electrical systems.
Collaborations
He collaborates with various professionals in the field, including his coworker Harry C. Gundlach, to further enhance the development of high voltage technologies.
Conclusion
Bertus Griesen's contributions to high voltage technology through his patents and work at Hazemeijer B.V. highlight his role as a key innovator in the industry. His inventions not only improve the functionality of electrical systems but also ensure their safety and reliability.