A system includes a transmission cable with a first main conductor wire. A sense wire is wrapped around the first main conductor wire with a sense resistor in series electrically with the sense wire. The transmission cable includes one or more additional main conductor wires each including a respective conductor. A protection system is operatively connected to the transmission cable, including a leakage current sensor circuit (LCSC) operatively connected to the sense wire to provide feedback indicative of current in the sense wire. A controller is operatively connected to provide feedback based control to a plurality of switching devices for fault protection. The controller is operatively connected to receive the feedback indicative of current in the sense wire from the LCSC for feedback based control of the plurality of switching devices.

A load management system integrates comparator-based neutral sensing, machine learning prediction, and relay control into a single integrated AC board requiring no additional wiring. A highspeed comparator circuit detects grid failures in sub millisecond timeframes, providing clean data to a temporal convolutional network that predicts load requirements 24 hours in advance with integration of external data sources such as weather and time of use pricing. The system automatically manages 120V and 240V circuits during grid transitions, learning from user override patterns to continuously improve performance. A mobile application provides real-time monitoring and control. The integration of low-latency sensing with predictive machine learning enables performance improvements exceeding 40% in battery runtime compared to conventional systems, while reducing installation time and cost.

An electrical network includes a plurality of distribution transformers, a plurality of network protectors each electrically connected to one of the distribution transformers, a secondary bus electrically connected to each of the plurality of network protectors, and a control unit. The control unit is configured to receive data from each of the plurality of network protectors associated with electricity flowing therethrough, analyze the data to determine whether an electrical imbalance exists at any of the network protectors, and operate any imbalanced network protectors to disconnect the distribution transformers connected to the imbalanced network protector from the secondary bus. The control unit is further configured to permit beneficial backflow through the distribution transformers that may be created by generators coupled to the secondary bus.

A hazardous energy control system is presented. The system includes a back-end system and a personal electronic device communicatively connected to the back-end system. The personal electronic device provides a user interface for a user to select a set of equipment from the pieces equipment at the worksite for electrical isolation from hazardous energy sources via lockout/tagout (LOTO). The back-end system is configured to dynamically the back-end system is configured to dynamically determine a LOTO procedure for electrical isolation of the set of equipment from the hazardous energy sources based on the electrical node data set indicating pieces of equipment, energy isolation devices (EIDs), and electrical connections between the pieces of equipment and EIDs on a worksite.

A system includes a transmission cable with a first main conductor wire. A sense wire is wrapped around the first main conductor wire with a sense resistor in series electrically with the sense wire. The transmission cable includes one or more additional main conductor wires each including a respective conductor. A protection system is operatively connected to the transmission cable, including a leakage current sensor circuit (LCSC) operatively connected to the sense wire to provide feedback indicative of current in the sense wire. A controller is operatively connected to provide feedback based control to a plurality of switching devices for fault protection. The controller is operatively connected to receive the feedback indicative of current in the sense wire from the LCSC for feedback based control of the plurality of switching devices.

Fault detection is provided. A system for fault detection includes an earthing transformer structured to be coupled with an alternating current (AC) output of an inverter and an earthing device. The system includes a controller. The controller is configured to receive a voltage for multiple phases of an output, or the input voltages with respect to ground of the inverter. The controller is configured to determine a difference between a first voltage of the voltages and a second voltage of the voltages. The controller is configured to compare the determined difference to a predefined threshold. The controller is configured to classify, based on the comparison, a first fault state of a circuit comprising the inverter.

A system includes a transmission cable with a first main conductor wire. A sense wire is wrapped around the first main conductor wire with a sense resistor in series electrically with the sense wire. The transmission cable includes one or more additional main conductor wires each including a respective conductor. A protection system is operatively connected to the transmission cable, including a leakage current sensor circuit (LCSC) operatively connected to the sense wire to provide feedback indicative of current in the sense wire. A controller is operatively connected to provide feedback based control to a plurality of switching devices for fault protection. The controller is operatively connected to receive the feedback indicative of current in the sense wire from the LCSC for feedback based control of the plurality of switching devices.

A voltage signal processing unit, a landing door fault location system and method, and an elevator system. The voltage signal processing unit includes: a first voltage signal input port; a second voltage signal input port; a first electrical level signal output port; a first voltage signal collection circuit, the first voltage signal collection circuit terminates with the first voltage signal input port and the first electrical level signal output port, the first voltage signal collection circuit is adapted to collect a first voltage signal received from the first voltage signal input port as a first electrical level signal output from the first electrical level signal output port; and a voltage signal bridge circuit, the voltage signal bridge circuit terminates with the first voltage signal input port and the second voltage signal input port, a normally open relay switch is provided.