Abstract: An outdoor busway system includes one or more conductor sections and one or more electrical connectors such that a conductor section of the outdoor busway system comprises a housing assembly and a conductor set. The housing assembly includes an upper housing section and a lower housing section such that the upper housing section and the lower housing section each having opposing counterposed features to oppose a first separation force of the housing assembly. The conductor set includes a plurality of viscoelastic structural sheets stacked alternatively between a plurality of conductor bars to oppose a second separation force between conductor bars of the plurality of conductor bars.

Abstract: A circuit breaker is configured to ensure electrical safety when working on its circuits. The circuit breaker comprises a housing with an exterior boundary. The housing includes an “integrated” Lock-Off feature. It is integrated to one or more housing components of the circuit breaker not as a separate component to achieve most simplicity and least space used as compared to an “add-on” accessory based Lock-Off feature. The “integrated” Lock-Off feature has a feature that is configured to receive a shackle or a shank of a padlock. The circuit breaker further comprises a built-in Lock-Off mechanism including a handle that is configured to move relative to the feature. The built-in Lock-Off mechanism in combination with the Lock-Off feature is configured to prevent handle from being turned ON with the use of padlock. The padlock prevents circuit breaker from turning ON by impeding the handle from moving to an ON-position.

Abstract: A system includes a plurality of remote addressable devices, each remote addressable device of the plurality of remote addressable devices being individually programmed with configuration data of the respective addressable device. Each remote addressable device includes a radio frequency (RF) transceiver to transmit a RF signal encoded with an address and a physical location of the remote addressable device transmitting the RF signal. The system further includes a plurality of bases. Each base of the plurality of bases includes a RF sensor for receiving the RF signal from the RF transceiver of the corresponding remote addressable device subsequent to the remote addressable device being positioned in the base.

Abstract: An electronic circuit breaker provides waveform data wirelessly and alters a breaker code wirelessly.

Abstract: A metal contact of a residential circuit breaker with ordered ceramic microparticles is provided. The metal contact comprises an electrical contact material comprising a metal alloy and ceramic particles to form a metal matrix composite material. Both materials the metal alloy and the ceramic particles are present together as a metal compound but without forming an alloy. The metal compound is a matrix and reinforcement being the ceramic particles such that first the ceramic particles has a sintering step to get a homogeneous preform for the metal compound being porous with a controlled size obtained by pressing a particle size of about few micrometers of the ceramic particles and then a liquid metal infiltration step to provide a homogenous distribution of the metal alloy and the ceramic particles in a three-dimensional open porous arrangement and the homogenous distribution results in ordered microstructures.

Abstract: A solid-state circuit breaker (SSCB) comprises a breaker housing, line-in and line-out terminals and one or more solid state switching components. The SSCB further comprises an air gap disposed between the line-in and line-out terminals and coupled in series with the solid-state switching components to complete a current conducting path when closed. The air gap includes an air gap driving mechanism. The solid-state circuit breaker further comprises an air gap actuator to interact with the air gap driving mechanism. The SSCB further comprises a controller that controls the air gap actuator and is configured to: (a). send a tripping signal to the air gap actuator and the one or more solid state switching components at substantially the same time or (b). send a tripping signal to the air gap actuator a short amount of time earlier than sending the tripping signal to the one or more solid state switching components.

Abstract: A system includes a plurality of remote addressable devices, each remote addressable device of the plurality of remote addressable devices being individually programmed with configuration data of the respective addressable device. Each remote addressable device includes a radio frequency (RF) transceiver to transmit a RF signal encoded with an address and a physical location of the remote addressable device transmitting the RF signal. The system further includes a plurality of bases. Each base of the plurality of bases includes a RF sensor for receiving the RF signal from the RF transceiver of the corresponding remote addressable device subsequent to the remote addressable device being positioned in the base.

Abstract: There is described a zone controller and method for identifying a root cause failure at a zone. The zone controller determines whether a temperature measurement deviates from a temperature setpoint of the temperature sensor, and generates a first repair code, a second repair code, and/or a third repair code. The first repair code replaces a temperature sensor in response to detecting that a reading of the temperature sensor has failed. The second repair code releases an operator override on the reading of the temperature sensor in response to detecting that the reading of the temperature sensor has been overridden. The third repair code releases an operator override on a setpoint of the temperature sensor in response to detecting that the setpoint of the temperature sensor is outside the predetermined setpoint range. One or more of these repair codes are provided to a remote device.

Abstract: A circuit breaker is configured to ensure electrical safety when working on its circuits. The circuit breaker comprises a housing with an exterior boundary. The housing includes an “integrated” or “pre-installed” Lock-Off feature extending away from the exterior boundary. The Lock-Off feature having a hole that is configured to receive a shackle or a shank of a padlock. The circuit breaker further comprises a built-in Lock-Off mechanism including a handle integrated with the housing using a pivot such that the handle is configured to pivot relative to the hole in the Lock-Off feature. The built-in Lock-Off mechanism in combination with the Lock-Off feature is configured to prevent the handle from being turned ON with the use of the padlock. The padlock prevents the handle from rotating on its pivot such that the padlock disables the circuit breaker from turning ON by impeding the handle from rotating to an ON-position.

Abstract: There is described a system and method for configuring, commissioning and troubleshooting an HVAC unit. A unit type configuration is established based on a type of HVAC system and temperature data, humidity data, and/or indoor air quality data. A fan configuration is established based on whether a variable frequency drive fan is identified. Cooling and heating stage configurations are established based on a compressor parameter and a heating stage parameter. An available auxiliary termination is identified in response to establishing the configurations. A safety is assigned to the available auxiliary termination in response to identifying the available auxiliary termination. An IO table is provided to an HVAC controller, which includes physical input/output assignments for the terminations of the HVAC controller based on the configurations and the assigned safety. For another embodiment, the fan configuration is established based on one of a traditional stage blower fan or variable frequency drive fan.

Abstract: A molded case circuit breaker configured to protect its ports and cables is provided. The molded case circuit breaker comprises an electronic trip unit (ETU) including communication ports or a thermomagnetic trip unit (TMTU). The molded case circuit breaker further comprises a terminal cover configured to pass cables that connect to the communication ports of the ETU and pass the cables over lugs without touching the lugs. The molded case circuit breaker further comprises a cable box cover that protects the cables of the ETU from external harm. The terminal cover including an emboss fixture having emboss guides for alignment and fixing of the cable box cover. The electronic trip unit (ETU) or the thermomagnetic trip unit (TMTU) and the cable box cover are assembled with one or more screws. The cable box cover is prevented from falling after the one or more screws are taken out from the terminal cover regardless of how the circuit breaker is mounted.

Abstract: A mounting base or a riser base for a switchgear is provided with side interior openings to provide an internal arc pathway through which arc gasses or plasma are safely discharged to an outside air. The mounting base includes a front wall having a first end and a second end, a rear wall having a first end and a second end, a first side channel connecting the first end of the front wall to the first end of the rear wall, a second side channel connecting the second end of the front wall to the second end of the rear wall, and forming the mounting base having a central open area in a first section of a switchgear that is adjacent a second section of the switchgear. The mounting base further includes at least one opening in the first side channel for the passage of an arc from the first section of the switchgear to the second section of the switchgear, and thereby forming the mounting base with the internal arc pathway.

Abstract: Methods for predictive maintenance with using machine learning in a building automation system and corresponding systems and computer-readable mediums. A method includes receiving device event data corresponding to a device and executing an inference engine to determine root cause fault data corresponding to the device event data. The method includes executing a predictive maintenance engine to produce a survival analysis for the physical device based on the root cause fault data. The method includes producing updated failure data by the predictive maintenance engine, based on the survival analysis, and providing the updated failure data to the inference engine. The inference engine thereafter uses the updated failure data in a subsequent root cause analysis. The method includes outputting the survival analysis.

Abstract: There is described a network distribution system using common communication and power comprising a power line, multiple fire alarm units, and a power line control device. The power line provides alternating current, and the fire alarm units are coupled to the power line. The power line control device is coupled to the power line and a particular fire alarm unit of the plurality of fire alarm units. The power line control device comprises a communication translator to convert between power line and non-power line protocols and a power line core to modulate signals to, and demodulate signals from, the power line.

Abstract: A temperature sensor of a thermal monitoring system is provided for use in power distribution systems. The temperature sensor comprises ceramic printed circuit board (PCB) and a terminal. The ceramic PCB includes a temperature sensing element disposed on a side of the ceramic PCB. The terminal is configured to be fixed directly in contact with a measured point and is directly in touch with the ceramic PCB such that heat is conducted from the terminal, through the ceramic PCB and then to the temperature sensing element. The temperature sensing element is configured to generate an electrical signal in response to the heat such that the electrical signal is sent through a pair of lead wires to a controller for monitoring a temperature. The temperature sensor further comprises an overmolded plastic material to seal a portion of the terminal, the ceramic PCB in its entirety and a portion of the pair of lead wires to ensure a desired physical strength and a desired dielectric strength.

Abstract: A circuit breaker with enhanced convection and cooling comprises a housing having a first portion and a second portion. The circuit breaker further comprises one or more first orientation features formed onto the first portion of the housing. The circuit breaker further comprises one or more second orientation features formed onto the second portion of the housing such that the one or more first orientation features are different from the one or more second orientation features and the first portion of the housing is different than the second portion of the housing. The one or more first orientation features and the one or more second orientation features are assembled together to form air channels to allow air to go in and out while preventing a solid object from protruding and from touching inside components of the circuit breaker.

Abstract: A circuit breaker distribution system is configured to provide selective coordination. The system comprises a solid-state switch disposed as a main or upstream breaker and a switch with an over current protection disposed as a branch or downstream breaker. The microcontroller to: allow repeated pulses of current through to the branch or downstream breaker in an event of an overload or short circuit, choose a maximum current limit for the solid-state switch as a “chop level” such that the chop level is chosen higher than a rated current of the solid-state circuit breaker but low enough that the solid-state switch is not damaged from repeated pulses over a period of time needed to switch OFF the branch or downstream breaker and add a pulse interval after the current chops to zero but before the solid-state circuit breaker returns to an ON state for a next pulse to begin.

Abstract: A solid-state circuit breaker comprises a breaker housing and an air gap driving mechanism that is a permanent magnet based. The air gap driving mechanism includes a pair of opposing contacts, a first permanent magnet to generate a static magnetic field and a coil actuator to generate a dynamic magnetic field. The first permanent magnet and the coil actuator are positioned relative to each other such that the dynamic magnetic field generated by the coil actuator can either enhance or cancel the static magnetic field of the first permanent magnet. Hence a combination of the static magnetic field from the first permanent magnet and the dynamic magnetic field from the coil actuator can either drive the pair of opposing contacts open or drive the pair of opposing contacts close.

Abstract: There is described a system and method of a building management system for preventive maintenance of an HVAC unit. Runtime data of the HVAC unit is received at a control system remote from the HVAC unit. A service message is initiated, by the control system, to a service device associated with the HVAC unit in response to determining that a preventive maintenance visit is warranted based on the runtime data. A hot-cold test for the HVAC unit is activated by the control system in response to receiving the registration message of the preventive maintenance visit from the service device. A validation message is reported in response to validating the preventive maintenance visit based on a result of the hot-cold test for the HVAC unit.