Abstract: A power line sensing device is provided that can include a number of features. In one embodiment, a power line sensing device includes a split-core transformer comprising a first core half having a first core face and a second core half having a second core face. The first core face and/or the second core face are covered with a protective film. The power line sensing device further includes a mechanism that, when the power line sensing device is installed, removes the protective film and joins the first core face to the second core face around a power line conductor.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of power line sensing devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, the power line sensors can include a split-core transformer. In some embodiments, a power line sensing device is disposed on each conductor of a three-phase network. The sensing devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of installing, sealing, and protecting the split-core transformers of the power line sensors are also discussed.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of power line sensing devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, the power line sensors can include a split-core transformer. In some embodiments, a power line sensing device is disposed on each conductor of a three-phase network. The sensing devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of installing, sealing, and protecting the split-core transformers of the power line sensors are also discussed.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of power line sensing devices configured to attach to individual conductors on a power grid distribution network. The sensing devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. The system can further include one or more arc shields positioned near the sensing devices and configured to prevent damage to the conductor or sensing device in the event of a traveling arc. Methods of installing and protecting the system are also discussed.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of monitoring devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, a monitoring device is disposed on each conductor of a three-phase network and utilizes a split-core transformer to harvest energy from the conductors. The monitoring devices can be configured to harvest energy from the AC power grid and apply a DC bias to core halves of the split-core transformer to maintain a positive magnetic force between the core halves. Methods of installing and using the monitoring devices are also provided.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of power line sensing devices configured to attach to individual conductors on a power grid distribution network. The sensing devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. The system can further include one or more arc shields positioned near the sensing devices and configured to prevent damage to the conductor or sensing device in the event of a traveling arc. Methods of installing and protecting the system are also discussed.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of power line sensing devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, the power line sensors can include a split-core transformer. In some embodiments, a power line sensing device is disposed on each conductor of a three-phase network. The sensing devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of installing, sealing, and protecting the split-core transformers of the power line sensors are also discussed.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of monitoring devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, a monitoring device is disposed on each conductor of a three-phase network and utilizes a split-core transformer to harvest energy from the conductors. The monitoring devices can be configured to harvest energy from the AC power grid and apply a DC bias to core halves of the split-core transformer to maintain a positive magnetic force between the core halves. Methods of installing and using the monitoring devices are also provided.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of monitoring devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, a monitoring device is disposed on each conductor of a three-phase network. The monitoring devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of calibrating the monitoring devices to accurately measure electric-field are also provided. In one embodiment, a first monitoring device on a first conductor can transmit a calibration pulse to a second monitoring device on a second conductor. The second monitoring device can determine a degradation of the calibration pulse, and use that degradation to calibrate electric-field measurements around the conductor.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of power line sensing devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, the power line sensors can include a split-core transformer. In some embodiments, a power line sensing device is disposed on each conductor of a three-phase network. The sensing devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of installing, sealing, and protecting the split-core transformers of the power line sensors are also discussed.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of monitoring devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, a monitoring device is disposed on each conductor of a three-phase network and utilizes a split-core transformer to harvest energy from the conductors. The monitoring devices can be configured to harvest energy from the AC power grid and apply a DC bias to core halves of the split-core transformer to maintain a positive magnetic force between the core halves. Methods of installing and using the monitoring devices are also provided.

Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of monitoring devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, a monitoring device is disposed on each conductor of a three-phase network. The monitoring devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of calibrating the monitoring devices to accurately measure electric-field are also provided. In one embodiment, a first monitoring device on a first conductor can transmit a calibration pulse to a second monitoring device on a second conductor. The second monitoring device can determine a degradation of the calibration pulse, and use that degradation to calibrate electric-field measurements around the conductor.

Abstract: A control arrangement for a deployable airbag of a vehicle is provided with first and second airbag controllers for receiving a fault signal at the first airbag controller, and for producing at the second airbag controller a deployment command signal that indicates that the deployable airbag is to be deployed. The second airbag controller receives the deployment command signal, and is provided with a communication controller for receiving the deployment command signal, a squib for firing in response to the deployment command signal whereby the deployable airbag is deployed, and an energy transfer arrangement coupled to the communication controller and the squib for transferring a deployment energy to the squib in response to the deployment command signal. The squib is configured to require a predeterminable minimum quantum of energy to effect the firing thereof in response to the deployment command signal.

Abstract: A control arrangement for a deployable airbag of a vehicle is provided with a squib for firing in response to a deployment command signal whereby the deployable airbag is deployed. Bilateral communication is effected between the control arrangement and an airbag electronic controller. Electrical energy and data, including the deployment command signal are conveyed to the control arrangement, and at least self-diagnosis information is conveyed to the airbag electronic controller. The squib is configured to require a predeterminable minimum quantum of energy to effect the firing thereof in response to the deployment command signal. A heater provides a radiated preheat to the squib, whereby the predeterminable minimum quantum of energy applied to effect firing of the squib is exceeded by a combination of the first electrical energy and the radiated preheat energy. The squib and the preheater preferably are both formed on a silicon substrate using a conventional integration process.

Abstract: A hermetically protected electronic assembly that has (a) a housing having walls defining a shallow impervious cavity with a depth no greater than 6-12 mm and with an cavity bottom surface; (b) conductor pins extending through integrally said housing walls and along the cavity bottom surface; (c) an insulating supporting platform resting on the cavity bottom surface with ends of the conductor pins extending therethrough to secure the position of the platform, the platform carrying an electrical circuit integrated to at least the top surface of the platform and connected to the conductor pins; (d) at least one electronic sensor component supported in the housing by the platform and operatively secured to the circuit; and (e) a water-proofing silicon gel filling the entire space within the housing including surrounding the circuit, platform, sensor and pin connections therein.