Abstract: A turbine replacement unit for replacement of at least one double runner horizontal submersible installation for a hydroelectric plant including at least one submerged coupling and at least one submerged bearing supported by a submerged bearing pedestal in which each of the two runners discharge a flow into a common draft tube. The replacement unit includes a single runner positioned to replace each of the two runners, the single runner receiving a flow and discharging the flow into the existing common draft tube. A dry pit assembly is positioned to surround the submerged pedestal and define an air space around the submerged pedestal and an oil-flooded bearing is positioned on the pedestal to replace the submerged bearing. A shaft supports the runner for rotation and is at least partially supported for rotation by the oil-flooded bearing. A generator is coupled to the shaft and is operable to produce an electrical power in response to rotation of the shaft.

Abstract: A turbine replacement unit for replacement of at least one double runner horizontal submersible installation for a hydroelectric plant including at least one submerged coupling and at least one submerged bearing supported by a submerged bearing pedestal in which each of the two runners discharge a flow into a common draft tube. The replacement unit includes a single runner positioned to replace each of the two runners, the single runner receiving a flow and discharging the flow into the existing common draft tube. A dry pit assembly is positioned to surround the submerged pedestal and define an air space around the submerged pedestal and an oil-flooded bearing is positioned on the pedestal to replace the submerged bearing. A shaft supports the runner for rotation and is at least partially supported for rotation by the oil-flooded bearing. A generator is coupled to the shaft and is operable to produce an electrical power in response to rotation of the shaft.

Abstract: Method and apparatus for altering the static electric charges of sheets of dielectric material arranged in a stack in which the stack is subjected to a high intensity electrostatic gradient. Interlock and shorting structures are utilized for preventing injury to users due to electrical shock.

Abstract: A method and system for maintaining precise electrically neutral, positive or negative atmosphere in an area, such as a textile mill, by adding charged ions to air being pumped into that area, for example, through an air conditioning duct whereby at least two spaced apart grids are mounted in the duct with one connected to a positive high voltage source and the other connected to a negative high voltage source so that both grids produce ions and the voltages applied thereto are controlled to maintain the area atmosphere neutral, positively charged or negatively charged as required to dissipate an undesired charge generated in a manufacturing process.

Abstract: A method and system for ionizing air passing through a metallic duct, e.g. to maintain precise electrically neutral, positive or negative atmosphere in an area, such as a textile mill, by adding charged ions to air being pumped into that area, with at least one electrical grid mounted in the duct by means of one or more insulator posts connecting the grid to a duct wall and adapted for connection to a DC high voltage source whereby buildup of conductive material such as grease or lint in a conductive path between the grid and duct wall is prevented. In one embodiment this is accomplished by providing an insulating sleeve within the duct and surrounding the grid, this sleeve by protecting against short circuits also permitting high currents to be safely used. In a second embodiment air deflectors mounted on the grid wall deflect the air in the duct away from the insulator posts, preferably with the aid of clean air injected between the air deflectors and duct wall.

Abstract: A method and system for maintaining precise electrically neutral, positive or negative atmosphere in an area, such as a textile mill, by adding charged ions to air being pumped into that area, for example through an air conditioning duct whereby at least two spaced apart grids are mounted in the duct with one connected to a positive high voltage source and the other connected to a negative high voltage source so that both grids produce ions and the voltages applied thereto are controlled to maintain the area atmosphere neutral, positively charged or negatively charged as required to dissipate an undesired charge generated in a manufacturing process.