Abstract: An intelligent electronic device for measuring various power parameters from a electrical power distribution system is disclosed. The device is capable of measuring and reporting the reliability of the electrical power distribution system as the number of consecutive 9's digits appearing in the computed percentage of system downtime versus system uptime. The number of 9's is computed in a manner which does not incur inaccuracies at high resolutions due to digital floating point mathematical computation methods.

Abstract: Carbide drilling and cutting tools for use in manufacturing printed circuit boards are provided by a process that recycles used tools as the starting raw materials. The used tools have a working portion and shank with a diameter of, for example, approximately 0.125 inches. The working portion of the used tool is removed and a new carbide head is attached to the remaining shank. The new carbide head, which also has a diameter of approximately 0.125 inches, is then machined to create a new working portion. The new tool is distributed for use and then recovered after use for recycling and manufacture of new tools from the shanks of the recycled tools.

Abstract: An intelligent electronic device for measuring various power parameters from a electrical power distribution system is disclosed. The device is capable of measuring and reporting the reliability of the electrical power distribution system as the number of consecutive 9's digits appearing in the computed percentage of system downtime versus system uptime. The number of 9's is computed in a manner which does not incur inaccuracies at high resolutions due to digital floating point mathematical computation methods.