Michael L Mcclure

US Patent:

20180080434, Mar 22, 2018

Filed:

Sep 20, 2016

Appl. No.:

15/270086

Inventors:

- Schenectady NY, US
Zachary Troope - Atlanta GA, US
Brian Manikas - Schenectady NY, US
Erin Lee Krumenacker - Greenville SC, US
Lauren Ashley Wyant - Greer SC, US
Christopher Robert Savio - Greenville SC, US
Michael Graham McClure - Albany NY, US

International Classification:

F03D 9/00
H02J 3/38
H02P 9/00
F03D 9/25

Abstract:

The present subject matter is directed to a system and method for detecting lifting of a ground brush of a generator of an electrical power system connected to a power grid so as to prevent damage to the electrical power system (e.g. bearing failure). The method includes monitoring, via at least one sensor, a voltage signal of a rotor shaft of the generator. The method also includes determining at least one characteristic (e.g. amplitude and/or frequency) of the voltage signal for a predetermined time period. Further, the method includes determining whether the at least one characteristic of the voltage signal is above a predetermined threshold, wherein the at least one characteristic of the voltage signal being above the predetermined threshold is indicative of the ground brush being lifted.