A wiring harness testing assembly for testing a wiring harness for wiring faults includes a puck that is positionable on a female coupler of a wiring harness on a semi-truck and the puck is foraminous. A plurality of testing lights is provided and each of the testing lights has a contact that is insertable through a respective foramen in the puck to electrically engage the female coupler of the wiring harness when the puck is positioned on the female coupler. Furthermore, respective ones of the testing lights are turned on when the contact on the respective testing light completes a circuit with a respective wire on the wiring harness thereby facilitating the respective wire to be tested for continuity.

A rack BMS detects a ground fault through a circuit embedded therein, and as a master BMS is configured to disconnect all the connections between battery racks and a grid in the case in which the rack BMS detects the ground fault, no more current flows through chassis, thereby protecting the battery racks and ensuring safety of a person using the battery racks.

Various embodiments relate to a method, controller, and machine-readable storage medium for verifying controlled devices attached to the controller including one or more of the following: selecting, using a system model that models a system of devices comprising the controlled devices attached to the controller, a grouping of the system of devices to be tested; conducting a test of the grouping to produce a test result for the grouping, wherein conducting the test comprises transmitting a communication to at least one device associated with the grouping; choosing a graphical representation of a portion of the system model from a plurality of graphical representations based on the graphical representation including a representation of the grouping; and displaying, on a user interface, the graphical representation and an indication of the test result.

Various embodiments relate to a method, controller, and machine-readable storage medium for verifying controlled devices attached to the controller including one or more of the following: selecting, using a system model that models a system of devices comprising the controlled devices attached to the controller, a grouping of the system of devices to be tested; conducting a test of the grouping to produce a test result for the grouping, wherein conducting the test comprises transmitting a communication to at least one device associated with the grouping; choosing a graphical representation of a portion of the system model from a plurality of graphical representations based on the graphical representation including a representation of the grouping; and displaying, on a user interface, the graphical representation and an indication of the test result.

A method and system for operating an inverter, which has a terminal with four conductor connectors for connection of the inverter to three outer conductors and to a neutral conductor of an AC voltage grid is disclosed. The method includes determining a connection configuration of the inverter to the AC voltage grid by actuating switching elements of a bridge circuit of the inverter to generate a zero-phase sequence system having a zero-phase sequence system current, and measuring and evaluating output currents of the inverter with respect to the zero-phase sequence system current. The method also includes identifying a presence of a connection of the neutral conductor to a conductor connector provided for connection to the neutral conductor when the zero-phase sequence system current exceeds a prescribed threshold value and identifying that the neutral conductor is not connected to the conductor connector provided for connection to the neutral conductor otherwise.

Disclosed is an electronic device is provided. The electronic device includes a first substrate, a second substrate arranged to be spaced apart from the first substrate, a first cable electrically connecting a first point on the first substrate and a second point on the second substrate, and a second cable electrically connecting a third point on the first substrate and a fourth point on the second substrate. The first substrate may include a first communication circuit, a second communication circuit, a detection circuit, a voltage application unit, and a ground unit, and a second substrate may include a first antenna, a first capacitive element, a second antenna, a second capacitive element, and an isolation circuit. The isolation circuit may isolate a radio frequency (RF) signal between the first path and the second path, and electrically connect the detection circuit to the ground unit through the first cable and the second cable.

Disclosed is an electronic device is provided. The electronic device includes a first substrate, a second substrate arranged to be spaced apart from the first substrate, a first cable electrically connecting a first point on the first substrate and a second point on the second substrate, and a second cable electrically connecting a third point on the first substrate and a fourth point on the second substrate. The first substrate may include a first communication circuit, a second communication circuit, a detection circuit, a voltage application unit, and a ground unit, and a second substrate may include a first antenna, a first capacitive element, a second antenna, a second capacitive element, and an isolation circuit. The isolation circuit may isolate a radio frequency (RF) signal between the first path and the second path, and electrically connect the detection circuit to the ground unit through the first cable and the second cable.

Techniques for determining a potential electrical threat by a utility meter are described herein. A metrology unit of the meter is configured to receive electrical data associated with electrical usage at a location The meter is configured to determine, based on the electrical usage at the location and/or previous electrical data, abnormalities indicative of an unstable connection, such as a loose wire connecting a load to a power supply. The meter may employ a machine learned model or other algorithm to identify the loose wire or unstable connection and is configured to disconnect power to the location and/or send a message to an alarm device at the location and/or to a computing device remote from the location. In this way, the metrology unit can be used to mitigate potential electrical threats, such as fire, due to an unstable connection such as a loose connection.

Techniques for determining a potential electrical threat by a utility meter are described herein. A metrology unit of the meter is configured to receive electrical data associated with electrical usage at a location The meter is configured to determine, based on the electrical usage at the location and/or previous electrical data, abnormalities indicative of an unstable connection, such as a loose wire connecting a load to a power supply. The meter may employ a machine learned model or other algorithm to identify the loose wire or unstable connection and is configured to disconnect power to the location and/or send a message to an alarm device at the location and/or to a computing device remote from the location. In this way, the metrology unit can be used to mitigate potential electrical threats, such as fire, due to an unstable connection such as a loose connection.

A detection method for wiring relationship of electrical components is disclosed. An acquisition unit for the wiring relationship of electrical components is used, and the acquisition unit includes a master controller, a control input coding module, a control output coding module, an acquisition signal input and output module, a control input decoding and control analog switch module, a control output decoding and control analog switch module, a relay control wiring separate drive, an acquisition signal module, a wiring terminal module, and also a data transmission module. The detection method can realize multi-point wiring relationship detection technology. A collected wiring relationship of electrical components is restored into a circuit schematic, through comparison a standard circuit diagram with a restored circuit schematic to determine whether correctness of a physical wiring way, which can truly realize a low-level electrical connection line to be transformed into digital electrical circuit equipment for human-computer interaction.