Abstract: An apparatus includes a housing having a gas-insulated compartment and a non-gas-insulated receptacle therein. The receptacle is disposed adjacent to the gas-insulated compartment and configured for removable insertion of a circuit interrupter assembly therein. A bus is disposed in the gas-insulated compartment, and a contact is disposed in the receptacle, electrically coupled to the bus in the gas-insulated compartment and configured to mate with a terminal of the circuit interrupter assembly when the circuit interrupter assembly is installed in the receptacle. The receptacle may be configured for insertion of an insulation-encapsulated circuit interrupter pole unit and the apparatus may include at least one flexible insulation member attached to a side wall of the receptacle and configured to engage a sidewall of the pole unit.

Abstract: An apparatus includes a housing having a gas-insulated compartment and a non-gas-insulated receptacle therein. The receptacle is disposed adjacent to the gas-insulated compartment and configured for removable insertion of a circuit interrupter assembly therein. A bus is disposed in the gas-insulated compartment, and a contact is disposed in the receptacle, electrically coupled to the bus in the gas-insulated compartment and configured to mate with a terminal of the circuit interrupter assembly when the circuit interrupter assembly is installed in the receptacle. The receptacle may be configured for insertion of an insulation-encapsulated circuit interrupter pole unit and the apparatus may include at least one flexible insulation member attached to a side wall of the receptacle and configured to engage a sidewall of the pole unit.

Abstract: An apparatus includes a housing, at least one first gas-insulated circuit interrupter in the housing and at least one second gas-insulated circuit interrupter disposed in the housing above the at least one first gas-insulated circuit interrupter. The at least one first gas-insulated circuit interrupter and the at least one second gas-insulated circuit interrupter may be housed in respective ones of a first gas containment compartment and a second gas containment compartment vertically arranged in the housing. At least one first bus may be coupled to the at least one first gas-insulated circuit interrupter and at least one second bus may be coupled to the at least one second gas-insulated circuit interrupter. The buses may be disposed between the first and second gas-insulated circuit interrupters.

Abstract: An apparatus includes a housing, a first plurality of gas-insulated circuit interrupters in the housing and a second plurality of gas-insulated circuit interrupters in the housing. The apparatus also includes a first bus assembly in the housing and coupled to the first plurality of gas-insulated circuit interrupters, and a second bus assembly in the housing and coupled to the second plurality of gas-insulated circuit interrupters. The apparatus further includes at least one connector configured to interconnect the first bus assembly and the second bus assembly.

Abstract: An apparatus includes a housing, at least one first gas-insulated circuit interrupter in the housing and at least one second gas-insulated circuit interrupter disposed in the housing above the at least one first gas-insulated circuit interrupter. The at least one first gas-insulated circuit interrupter and the at least one second gas-insulated circuit interrupter may be housed in respective ones of a first gas containment compartment and a second gas containment compartment vertically arranged in the housing. At least one first bus may be coupled to the at least one first gas-insulated circuit interrupter and at least one second bus may be coupled to the at least one second gas-insulated circuit interrupter. The buses may be disposed between the first and second gas-insulated circuit interrupters.

Abstract: An apparatus includes a housing, a first plurality of gas-insulated circuit interrupters in the housing and a second plurality of gas-insulated circuit interrupters in the housing. The apparatus also includes a first bus assembly in the housing and coupled to the first plurality of gas-insulated circuit interrupters, and a second bus assembly in the housing and coupled to the second plurality of gas-insulated circuit interrupters. The apparatus further includes at least one connector configured to interconnect the first bus assembly and the second bus assembly.

Abstract: An improved bus bar apparatus is usable in high temperature electrical terminations and is configured to provide sufficient heat dissipation such that when connected at one end with a 90° C. wire, the bus bar apparatus is at most only at 75° C. at another end thereof, which end can be connected with a lower temperature electrical component such as a circuit interrupter. The bus bars apparatus may include bus bars that extend directly between the high temperature wires and the low temperature electrical component, or the bus bar apparatus may additionally include wires that are electrically interposed between the low temperature region of the bus bars and the electrical component. Additional cooling could be provided by employing oversized wires. The bus bars may additionally include fins, fans, or supplementary heat sinks to enhance thermal convection of the bus bar. The bus bar apparatus additionally can be provided with its own enclosure to be usable in a retrofit situation.

Abstract: An improved bus bar apparatus is usable in high temperature electrical terminations and is configured to provide sufficient heat dissipation such that when connected at one end with a 90° C. wire, the bus bar apparatus is at most only at 75° C. at another end thereof, which end can be connected with a lower temperature electrical component such as a circuit interrupter. The bus bars apparatus may include bus bars that extend directly between the high temperature wires and the low temperature electrical component, or the bus bar apparatus may additionally include wires that are electrically interposed between the low temperature region of the bus bars and the electrical component. Additional cooling could be provided by employing oversized wires. The bus bars may additionally include fins, fans, or supplementary heat sinks to enhance thermal convection of the bus bar. The bus bar apparatus additionally can be provided with its own enclosure to be usable in a retrofit situation.

Abstract: An improved bus bar apparatus is usable in high temperature electrical terminations and is configured to provide sufficient heat dissipation such that when connected at one end with a 90° C. wire, the bus bar apparatus is at most only at 75° C. at another end thereof, which end can be connected with a lower temperature electrical component such as a circuit interrupter. The bus bars apparatus may include bus bars that extend directly between the high temperature wires and the low temperature electrical component, or the bus bar apparatus may additionally include wires that are electrically interposed between the low temperature region of the bus bars and the electrical component. Additional cooling could be provided by employing oversized wires. The bus bars may additionally include fins, fans, or supplementary heat sinks to enhance thermal convection of the bus bar. The bus bar apparatus additionally can be provided with its own enclosure to be usable in a retrofit situation.

Abstract: A string includes direct current electrical generating modules electrically connected in series to form a first end and a remote second end. A power line is electrically connected to one DC EGM at the first end. A return line is electrically connected to another DC EGM at the remote second end. A first string protector is in the power line of the string, and a second SP is in the return line of the string at the remote second end. One of the first and second SPs includes a number of an over current protector, an arc fault protector, a reverse current protector and a ground fault protector. The other one of the first and second SPs includes a number of an over current protector, an arc fault protector, a reverse current protector, a ground fault protector, and a remotely controlled switch in series with the power or return lines.

Abstract: An improved bus bar apparatus is usable in high temperature electrical terminations and is configured to provide sufficient heat dissipation such that when connected at one end with a 90° C. wire, the bus bar apparatus is at most only at 75° C. at another end thereof, which end can be connected with a lower temperature electrical component such as a circuit interrupter. The bus bars apparatus may include bus bars that extend directly between the high temperature wires and the low temperature electrical component, or the bus bar apparatus may additionally include wires that are electrically interposed between the low temperature region of the bus bars and the electrical component. Additional cooling could be provided by employing oversized wires. The bus bars may additionally include fins, fans, or supplementary heat sinks to enhance thermal convection of the bus bar. The bus bar apparatus additionally can be provided with its own enclosure to be usable in a retrofit situation.

Abstract: A multi-standard compatible electric vehicle supply equipment includes a plurality of different electric vehicle connectors each of which corresponds to one of a plurality of different electric vehicle standards. A power converter inputs alternating current power and includes an output to output direct current power. A circuit is structured to selectively electrically connect a source of alternating current power to a number of the electric vehicle connectors, selectively electrically connect the output of the power converter to a selected one of the different electric vehicle connectors, employ a plurality of different communication protocols for the different electric vehicle connectors, detect connectivity of one of the different electric vehicle connectors with an electric vehicle and responsively select one of a plurality of different charging modes, and communicate with the electric vehicle through the selected one of the different electric vehicle connectors.

Abstract: A circuit interrupter includes, a first contact and a second contact, the second contact being moveable relative to the first contact, a drive assembly structured to move the second contact relative to the first contact, and an erosion monitoring device including a linear transducer coupled to a portion of the drive assembly. The liner transducer is structured to generate an output signal representative of an amount of linear displacement of the portion of the drive assembly, wherein the erosion monitoring device is structured to monitor a degree of erosion of at least one of the first contact and the second contact based on the output signal.

Abstract: A busway is described herein that is configured for receipt of plural power sources. The busway device comprises a first plurality of busbars in a spaced apart relationship, with the width, thickness, and spacing of the busbars configured for receipt of a first power source. The first plurality of busbars is contained in a first housing. The device further includes a second plurality of busbars in a spaced apart relationship, with the width, thickness, and spacing of the busbars configured for receipt of a second power source. The second plurality of busbars is contained in a second housing and electrically isolated from the first plurality. The first housing is configured for adjacent placement and connection to the second housing.

Abstract: A circuit interrupter includes, a first contact and a second contact, the second contact being moveable relative to the first contact, a drive assembly structured to move the second contact relative to the first contact, and an erosion monitoring device including a linear transducer coupled to a portion of the drive assembly. The liner transducer is structured to generate an output signal representative of an amount of linear displacement of the portion of the drive assembly, wherein the erosion monitoring device is structured to monitor a degree of erosion of at least one of the first contact and the second contact based on the output signal.

Abstract: An acoustic sensor apparatus includes a housing, a fastener structured to fasten together the housing and an electrical power conductor, an acoustic sensor structured to detect acoustic noise from the electrical power conductor and output a signal, and a circuit structured to detect an electrical conductivity fault from the signal.

Abstract: An acoustic sensor system is for an electrical distribution system having a number of phases. The acoustic sensor system comprises: a plurality of sets of acoustic sensors structured to detect an electrical conductivity fault of the electrical distribution system. Each of the plurality of sets includes a number of acoustic sensors. Each of the number of acoustic sensors is for a corresponding one of the number of phases of the electrical distribution system.

Abstract: A shutter assembly is provided for an electrical system including at least one withdrawable electric apparatus, such as a circuit breaker, and an electrical bus member. A protruding structure of the circuit breaker is removably coupled to a corresponding primary contact of the electrical bus member to electrically connect the circuit breaker and the electrical bus member. The shutter assembly includes a pair of cover members that are pivotably movable between a first position in which the corresponding primary contact of the electrical bus member is isolated, and a second position in which the circuit breaker is connected with the primary contact and the electrical bus member.

Abstract: A shutter assembly is provided for an electrical system including at least one withdrawable electric apparatus, such as a circuit breaker, and an electrical bus member. A protruding structure of the circuit breaker is removably coupled to a corresponding primary contact of the electrical bus member to electrically connect the circuit breaker and the electrical bus member. The shutter assembly includes a pair of cover members that are pivotably movable between a first position in which the corresponding primary contact of the electrical bus member is isolated, and a second position in which the circuit breaker is connected with the primary contact and the electrical bus member.

Abstract: A switch arrangement for an electrical switchgear comprising a first bus, a second bus and a load connection. The switch arrangement comprises a breaker; wherein said breaker is moveable in said switchgear between a first position and a second position, such that in use, when said breaker is in said first position and closed it electrically connects said first bus to said load connection, and when said breaker is in said second position and closed it electrically connects said second electrical bus to said load connection, with said first electrical bus disconnected from said load connection.