Ronald T Zipagan

Title: The Innovations of Ronald T. Zipagan

Introduction

Ronald T. Zipagan is an accomplished inventor based in Greenwood, SC (US). He has made significant contributions to the field of electrical engineering, particularly in the development of innovative drive circuits and voltage sensing devices. With a total of two patents to his name, Zipagan's work has had a notable impact on power distribution systems.

Latest Patents

Zipagan's latest patents include the "Trip Coil Drive Circuit" and "Electrical Switching Apparatus Including the Same." The trip coil drive circuit is designed for a shunt trip coil of a network protector. It features an alternating current input that receives an alternating current voltage and a first half-wave rectifier that provides multiple direct current voltages. An energy store, such as electrolytic capacitors, generates a first direct current output. A sensor circuit monitors the alternating current input and the first direct current output, providing a second output from either source. A second full-wave rectifier then responds to this output and the trip signal to drive the network protector shunt trip coil.

The second patent, "Automatic Voltage Device and Network Protector Incorporating Same," describes a voltage sensing device that automatically scales the source and network phase voltages of a power distribution system. This device is capable of handling one of two operating voltages for input to a network protector relay. It also scales a voltage for operating the trip and close circuit of the circuit breaker in the network protector. A latching tap select relay switches the system voltages to the lower operating voltage input taps of step-down transformers after a short delay, ensuring all system voltages are in the lower operating range. A diagnostic circuit verifies the proper switch position and voltages before closing output contacts to connect the scaled voltages to the relay and circuit breaker.

Career Highlights

Throughout his career, Ronald T. Zipagan has worked with notable companies, including Eaton Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects in electrical engineering.

Collaborations

One of his notable coworkers is Mark Faulkner, with whom he has collaborated on various projects. Their partnership has contributed to the advancement of technology in their field.

Conclusion

Ronald T. Zipagan's contributions to electrical engineering through his patents and career achievements highlight his innovative spirit and dedication to advancing technology. His work continues to