Abstract: Techniques, systems, and articles are described for preparing electrical cables for connections to a power grid. In one example, a system includes a handheld cable preparation device configured to cut one or more layers of an electrical cable and a computing device configured to control the cable preparation device to cut the one or more layers of the electrical cable.

Abstract: A partial discharge (PD) detection system includes a node including a sensor configured to capacitively couple to a shield layer of a cable of an electric power line. The sensor is configured to collect, from the cable, sensor data indicative of an alternating-current (AC) electrical signal in the cable. The system further includes a high-pass filter configured to filter out low-frequency signals from the sensor data, and processing circuitry configured to detect, based on the filtered sensor data, a PD event at a location on the cable that is local to the sensor.

Abstract: A method for tracking and storing unique asset information with respect to at least one asset comprises providing at least one asset having an associated tag, capturing the tag and associated asset properties to a device, wherein the associated asset properties include the global position of the device at the time of capturing the tag with the device, storing the tag and asset properties as asset information to a database wherein the asset information is associated with the tag and global position of the device, and displaying asset information associated with at least the stored tag.

Abstract: A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.

Abstract: Ribbon cables including a plurality of spaced apart substantially parallel conductors extending along a length of the cable and arranged along a width of the cable, and first and second insulative layers disposed on opposite sides of and substantially coextensive with the plurality of conductors along the length and width of the cable are described. Each insulative layer may be adhered to the conductors and may include alternating substantially parallel thicker and thinner portions extending along the length of the cable. The thicker portions of the first and second insulative layers are substantially aligned in one to one correspondence. Each corresponding thicker portion of the first and second insulative layers have at least one conductor in the plurality of conductors disposed therebetween. The thicker portions may have an effective dielectric constant less than 2.

Abstract: A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.

Abstract: A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.

Abstract: Techniques, methods, systems and articles are described for monitoring electrical equipment of a power grid, identifying installation and/or configuration errors of such electrical equipment, and automatically correcting the errors. In one example, a system includes at least one processor and a plurality of sensors coupled to a multi-phase power line comprising a plurality of electrical cables that are each associated with a respective phase. The plurality of sensors are configured to generate sensor data that is indicative of one or more conditions of the electrical cables. The at least one processor is configured to receive the sensor data and determine, based at least in part on the sensor data, whether a sensor of the plurality of sensors is installed correctly. The at least one processor is also configured to perform an action in response to determining that the sensor is not installed correctly.

Abstract: A shielded electrical ribbon cable includes adjacent first and second longitudinal conductor sets where each conductor set includes two or more insulated conductors. The first conductor set also includes a ground conductor that generally lies in the plane of the insulated conductors of the first conductor set. At least 90% of the periphery of each conductor set is encompassed by a shielding film. First and second non-conductive polymeric films are disposed on opposite sides of the cable and form cover portions substantially surrounding each conductor set, and pinched portions on each side of each conductor set. When the cable is laid flat, the distance between the center of the ground conductor of the first conductor set and the center of the nearest insulated conductor of the second conductor set is ?1, the center-to-center spacing of the insulated conductors of the second conductor set is ?2, and ?1/?2 is greater than 0.7.

Abstract: A shielded electrical ribbon cable includes adjacent first and second longitudinal conductor sets where each conductor set includes two or more insulated conductors. The first conductor set also includes a ground conductor that generally lies in the plane of the insulated conductors of the first conductor set. At least 90% of the periphery of each conductor set is encompassed by a shielding film. First and second non-conductive polymeric films are disposed on opposite sides of the cable and form cover portions substantially surrounding each conductor set, and pinched portions on each side of each conductor set. When the cable is laid flat, the distance between the center of the ground conductor of the first conductor set and the center of the nearest insulated conductor of the second conductor set is ?1, the center-to-center spacing of the insulated conductors of the second conductor set is ?2, and ?1/?2 is greater than 0.7.

Abstract: A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.

Abstract: A ribbon cable is described, including a plurality of conductors extending along a length of the cable, and a structured insulative tape comprising a plurality of spaced apart supports forming alternating first and second groups of supports disposed on a major surface of the structured insulative tape. Each first group of supports includes at least one taller first support, and each second group of supports includes at least one shorter second support. The insulative tape is helically wrapped around the plurality of conductors along the length of the cable such that each first group of supports is disposed between and maintains a minimum separation between two adjacent conductors, and each second group of supports is disposed around one or more conductors to maintain spacing between the conductors and an outer surface of the ribbon cable.

Abstract: A shielded electrical cable includes conductor sets extending along a length of the cable and spaced apart from each other along a width of the cable. First and second shielding films are disposed on opposite sides of the cable and include cover portions and pinched portions arranged such that, in transverse cross section, the cover portions of the films in combination substantially surround each conductor set. An adhesive layer bonds the shielding films together in the pinched portions of the cable. A transverse bending of the cable at a cable location of no more than 180 degrees over an inner radius of at most 2 mm causes a cable impedance of the selected insulated conductor proximate the cable location to vary by no more than 2 percent from an initial cable impedance measured at the cable location in an unbent configuration.

Abstract: A ribbon cable is described, including a plurality of conductors extending along a length of the cable, and a structured insulative tape comprising a plurality of spaced apart supports forming alternating first and second groups of supports disposed on a major surface of the structured insulative tape. Each first group of supports includes at least one taller first support, and each second group of supports includes at least one shorter second support. The insulative tape is helically wrapped around the plurality of conductors along the length of the cable such that each first group of supports is disposed between and maintains a minimum separation between two adjacent conductors, and each second group of supports is disposed around one or more conductors to maintain spacing between the conductors and an outer surface of the ribbon cable.

Abstract: Electrical power cable preparation techniques to connect to cable accessories for use in a power grid are described. In an example, a system comprises a cross-section sensing module. The cross-section sensing module comprises a camera configured to capture at least one image of an end-face of an electrical cable, a housing configured to position the end-face of the electrical cable substantially perpendicular to an optical axis of the camera and at an imaging distance from the camera, and at least one optical marker configured to indicate a diameter of the electrical cable. The system further comprises an electrical cable preparation device configured to cut at least one layer of an electrical cable, and a computing device configured to display a user interface, the user interface configured to accept user inputs controlling at least one setting of the cross-section sensing module and electrical cable preparation device.

Abstract: Techniques, systems and articles are described for preparing electrical cables for connections to a power grid. In one example, a system includes a rotatable tool head having a plurality of rollers, a cutting tool, a signal reflection target coupled to the at least one cutting tool, a transceiver configured to transmit a signal toward the reflection target and detect a reflected signal from the reflection target; and at least one computing device configured to cause the transceiver to transmit the signal toward the reflection target and determine, based on the reflected signal, a current relative position of the cutting tool.

Abstract: Techniques, systems and articles are described for preparing electrical cables for connections to a power grid. In one example, a system includes a cable preparation device configured to cut one or more layers of an electrical cable and a computing device configured to control the cable preparation device to cut the one or more layers of the electrical cable. The computing device may determine one or more target cutting distances and determine whether an actual cutting distance satisfies the target cutting distance. The computing device may detect defects in the electrical cable. The computing device may further determine whether the cable preparation device should be serviced.

Abstract: Techniques, systems and articles are described for preparing electrical cables for connections to a power grid. In one example, a system includes a cable preparation device configured to cut one or more layers of an electrical cable and a computing device configured to control the cable preparation device to cut the one or more layers of the electrical cable.

Abstract: A method for tracking and storing unique asset information with respect to at least one asset comprises providing at least one asset having an associated tag, capturing the tag and associated asset properties to a device, wherein the associated asset properties include the global position of the device at the time of capturing the tag with the device, storing the tag and asset properties as asset information to a database wherein the asset information is associated with the tag and global position of the device, and displaying asset information associated with at least the stored tag.

Abstract: Techniques, systems and articles are described for monitoring electrical equipment of a power grid and predicting likelihood failure events of such electrical equipment. In one example, a system includes an article of electrical equipment, at least one processor, and a storage device. The article of electrical equipment includes one or more sensors that are configured to generate sensor data indicative of one or more conditions of the article of electrical equipment. The storage device includes instructions that, when executed by the at least one processor, cause the at least one processor to: receive the sensor data; determine, based at least in part on the sensor data, a health of the article of electrical equipment; and responsive to determining the health of the article of electrical equipment, perform an operation.