Abstract: A system for geographically locating a component of utility equipment may comprise a geo-location interface (GLI) in communication with and in proximity to the component, the GLI having a navigation system that provides geo-location data, wherein the GLI receives an input relating to an operating state of the component and transmits an output containing the geo-location data and an alert relating to the operating state, and at least one remote station that receives a digital message based on the output from the GLI and generates a display based on the digital message.

Abstract: Methods and apparatus are provided for assessing equipment related risk based on electrical event data. An electrical event is an electrical voltage or current that falls outside a nominal range during an event duration. The electrical event data for electricity supplied to electrically-powered equipment is analyzed and one or more types of equipment related risk associated with an electrical event are quantified based on the electrical event data. A visual representation of the quantified one or more equipment related risks is provided.

Abstract: Coordination of the overcurrent/time trip characteristics of a hierarchy of overcurrent protection devices is accomplished through a central tester which establishes a pattern of test currents for the individual overcurrent protection devices which simulates a fault at a specified location in the power system. The individual assigned test currents are transmitted over a communications link to the separate overcurrent protection devices where they are stored in memory. The central tester then broadcasts a test signal which simultaneously initiates testing of all of the overcurrent protection devices using the assigned test currents stored in memory. The trip times are recorded and reported back to the central tester for analysis.

Abstract: A PC computer monitors the energy consumed at a plurality of local stations placed behind the electrical meter of the utility company for individual billing of the local users, a bidirectional communication line being used therebetween. A command from the PC computer causes at each station the totalized energy to be stored, and thereafter the PC computer derives individually the results for separate estimations and central billing.

Abstract: A PC computer monitors the energy, power, voltage, and current consumed at a plurality of local stations placed behind the electrical meter of the utility company for individual billing of the local users, a bidirectional communication line being used therebetween. A command from the PC computer causes at each station the power, voltage, current and totalized energy to be stored, and thereafter the PC computer derives individually the results for separate estimations and central billing.

Abstract: A microprocessor based tie relay controls a tie circuit breaker between a main bus and a transfer bus to which any one of a number of feeder lines may be connected through a disconnect switch when the feeder circuit breaker associated with that feeder line is out of service. Settings for the protection characteristics of each of the feeder relays controlling the feeder circuit breakers are stored in non-volatile memory together with a default protection characteristic suitable for protecting any of the feeder lines. The appropriate protection characteristic for the feeder line connected to the transfer bus is selected for use by the tie relay in controlling the tie circuit breaker. This selection may be made manually by an operator, or preferably automatically by the microprocessor of the tie relay which monitors the states of the feeder circuit breakers and of the disconnect switches and selects the settings associated with the feeder line whose feeder circuit breaker is open and disconnect switch is closed.