An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a platform; a coil for measuring EM signals; and first to third suspension mechanisms located between the platform and the coil so that the coil oscillates relative to the platform, and the first to third suspension mechanisms attenuate motion induced noise introduced by towing the receiver system above ground.

An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a platform; a coil for measuring EM signals; and first to third suspension mechanisms located between the platform and the coil so that the coil oscillates relative to the platform, and the first to third suspension mechanisms attenuate motion induced noise introduced by towing the receiver system above ground.

An improved PCB Rogowski coil addresses the challenges presented by space constraints within circuit interrupters. The disclosed coil comprises a plurality of PCBs that are coupled together, in contrast with known coils constructed from only a single PCB. During a pre-assembly stage, three PCBs are coupled to one another in order to form a partial coil assembly structured to be mounted onto a circuit interrupter primary conductor. After the partial coil assembly is mounted onto the primary conductor, a fourth PCB is connected to the partial coil assembly via press-fit connectors to form a complete coil. In contrast with known PCB Rogowski coils which are structured to be mounted perpendicularly to the primary conductor, the disclosed modular PCB Rogowski coil enables a substantial portion of the PCB surface area to be mounted in parallel to the primary conductor and to thus occupy significantly less space than known PCB Rogowski coils.

A probe assembly includes a multilayer structure including probe contact pads, an upper guide plate including an array of upper holes therethrough, a lower guide plate including an array of lower holes therethrough, a vertical stack of a plurality of dielectric spacer plates located between the upper guide plate and the lower guide plate and including a respective opening therethrough, and an array of probes attached to the probe contact pads, vertically extending through the array of upper holes and the array of lower holes, and vertically extending through the openings through the vertical stack of the plurality of dielectric spacer plates.

An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a platform; a coil for measuring EM signals; and first to third suspension mechanisms located between the platform and the coil so that the coil oscillates relative to the platform, and the first to third suspension mechanisms attenuate motion induced noise introduced by towing the receiver system above ground.

An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a platform; a coil for measuring EM signals; and first to third suspension mechanisms located between the platform and the coil so that the coil oscillates relative to the platform, and the first to third suspension mechanisms attenuate motion induced noise introduced by towing the receiver system above ground.

A module type sensor includes a casing including a casing upper surface, a first casing side surface which is bent downward from the casing upper surface and has a lower end upwardly separated from a path through which a transmission line passes, and a second casing side surface which is bent downward from the casing upper surface and has a fixing bracket extending by being outwardly bent; a body unit fixedly installed inside the casing, formed of an insulator, supported by the printed circuit board at a lower end, and having, at a center, an opening which is open toward the transmission line; and a sensing substrate unit fixedly installed on an upper portion of the body unit, and including a voltage sensing circuit which is capacitively coupled to the transmission line exposed through the opening and a current sensing circuit which is inductively coupled to the transmission line.

A load providing test and diagnostic assist device for provision of power to equipment undergoing diagnostic testing and repair includes a breaker that is sized appropriately to the amperage of the equipment under repair. The device includes a power cable and a power cord that are gauged appropriately to the current source supplied to the equipment under repair. The power cable has a first terminus and a second terminus. The power cord has a first end and a second end. The first end and the first terminus are electrically coupled to the breaker. A connector is electrically coupled to the second terminus of the power cable. The connector is couplable to an alternating current source. A coupler is electrically coupled to the second end of the power cord.

A load providing test and diagnostic assist device for provision of power to equipment undergoing diagnostic testing and repair includes a breaker that is sized appropriately to the amperage of the equipment under repair. The device includes a power cable and a power cord that are gauged appropriately to the current source supplied to the equipment under repair. The power cable has a first terminus and a second terminus. The power cord has a first end and a second end. The first end and the first terminus are electrically coupled to the breaker. A connector is electrically coupled to the second terminus of the power cable. The connector is couplable to an alternating current source. A coupler is electrically coupled to the second end of the power cord.