Abstract: An arrester includes a dielectric housing that has a body portion that includes a substantially cylindrical wall with opposing first and second ends that form inner cavity therebetween. A support mounting bracket portion is formed as a unitary, one-piece extension of the body portion and extends laterally from said second end. The housing has sufficient rigidity to maintain the bracket portion in a position substantially perpendicular to the body portion. At least one varistor element is received in the inner cavity of the housing.

Abstract: A method and apparatus are provided for synchronizing an event of an internal combustion engine at least in part as a function of the load on the engine. Desirably, the ignition timing of the engine may be controlled as a function of the load on the engine. Preferably, the system and apparatus utilize existing engine sensors to provide the information needed to determine the load on the engine. Also preferably, the system and apparatus provide the load determination to other systems such as a fuel injection system to improve the timing of the injection event of the system.

Abstract: A high voltage, current limiting device is connected in series with a high voltage power source and a protected load to interrupt current for an over-current condition [Typically 50 kA]. The current limiting device includes a current sensor/isolator and a switch connected in series. A current limiter, which may include a fuse or polymer current limiting material, is connected in parallel to the current sensor/isolator. The current sensor/isolator includes a pair of electrically insulated supports secured to a plurality of support rods to maintain the insulated supports at a predetermined fixed spacing to support an expulsion fuse. The expulsion fuse link includes a pair of copper conductors of adequate current carrying capability that are attached to ends of a main weak link fuse. A pair of coil springs hold the weak link fuse under tension to repel the conductors apart when the weak link fuse melts open during an over-current condition.

Abstract: A current-limiting switch, with current connections and contacts, at least one of which is movable, having an associated drive, for opening the moving contact when a predefined electric current intensity is exceeded, are provided. The drive is a thermoelectric drive where a disk-shaped resistor body is present, in a closed housing made of insulating material, for high-intensity discharges, plurality of resistor bodies and associated electrode disks, acting as contacts, are connected electrically in parallel and mechanically in series in the housing made of an insulating material (1). This results in increased switching capacity with compact design.

Abstract: A protective ground connector for establishing a direct ground connection in response to a fault voltage in a welding circuit. A pair of smooth-faced metal blocks are clamped in face-to-face relationship with each other with a relatively thin shim of electric insulating material clamped between the opposed faces of the blocks. One of the blocks is electrically connected to a circuit to be monitored, the other block is electrically connected to ground. The electrical characteristics of the shim are such as to electrically insulate the two blocks from each other in the face of normal circuit voltages and to break down in response to a fault voltage in the monitored circuit to thereby establish a direct ground connection.