William J Hopper

US Patent:

20230020562, Jan 19, 2023

Filed:

Jul 14, 2021

Appl. No.:

17/376014

Inventors:

- Charlotte NC, US
Hiram Lee Avant - Wilmington NC, US
William Hopper - Lewiston ID, US
Lorenzo Pelayo - Payette ID, US
Joseph Matthew Travis - Huntersville NC, US
Bernard Cantin - Charlotte NC, US

International Classification:

H02K 15/00
H02K 7/18
H02K 13/00
F03B 13/08
F03B 3/18

Abstract:

A method for in-place machining of a collector ring attached to a turbine shaft of a hydroelectric generator includes: attaching a support member to stationary portions of the hydroelectric generator, the support member being configured to support a machine tool at an angle parallel to an inclination angle of an axis of rotation of the turbine shaft; attaching an adjustable positioning device to the support member; attaching the machine tool to the adjustable positioning device, the machine tool being configured to perform a machining operation on the collector ring; controlling a rotational speed of the turbine shaft to a specified rotational speed by controlling a flow of water through the turbine; adjusting the adjustable positioning device to adjust a position of the machine tool with respect to the collector ring; and performing the machining operation on the collector ring at the specified rotational speed of the turbine shaft.