Abstract: An apparatus for simply retrofitting pre-existing vehicular incandescent hazard flashing lamps or strobe assemblies having high voltage wiring with low voltage, low-cost, two wire synchronized strobe lamp assemblies without requiring the altering of the vehicle's existing structure or wiring. The apparatus utilizes a high voltage d.c. to d.c. converter circuit which may be completely contained within the lamp housing so that no high voltage wiring will be routed through the vehicle. The strobe trigger circuit operates by sensing the ground potential at its input to trigger the strobe assembly's flash tube. This feature allows the synchronization of all circuit lamps, both incandescent and strobe, on a two wire flasher circuit without the need for a third wire to provide the trigger signal to the flash circuit. One embodiment of the invention works autosynchronously in conjunction with a standard electromechanical flasher relay as may be utilized in a typical vehicular warning light system.

Abstract: An integral meter and current transformer to measure single phase active and reactive energy, voltage and frequency in industrial, commercial and multi-family residential applications. The meter CT is the primary sensing element in a revenue metering system encompassing multiple meter CTs serially connected in groups in communication with data cores for collection and reporting of energy consumption. Numerous data cores may be networked to report to a central station which may be remotely interrogated over the network or dial up modem connection. The meter CT utilizes a split-core transformer with substantially overlapping fingers. Disengaging split-core sections of the meter CT enables it to be easily installed around a loaded conductor without the interruption of power to the load.