Jane H Shin

US Patent:

20210123966, Apr 29, 2021

Filed:

Oct 24, 2019

Appl. No.:

16/662992

Inventors:

- Palo Alto CA, US
- Schenectady NY, US
- New York NY, US
Jane Shin - New York NY, US
Serena Lee - New York NY, US
Bradley Kittrell - New York NY, US

International Classification:

G01R 31/12
G01R 31/02

Abstract:

An approach to detecting partial discharge events involves retrofitting an electrical system to include a capacitive sensor configured to capacitively sense partial discharge events of a component of the electrical system. The capacitive sensor has a first electrical conductor that forms a first terminal of the capacitive sensor, a second electrical conductor that forms a second terminal of the capacitive sensor, and a dielectric that separates the first electrical conductor and the second electrical conductor. The capacitive sensor generates an electrical sensor signal at an output of the capacitive sensor in response to the partial discharge event. The electrical sensor signal is converted to an optical signal and the optical signal is processed to detect an occurrence of the partial discharge event.