Abstract: An elbow terminator has a socket in which an electrical probe is disposed. The terminator is insertable onto an electrical bushing such that a tongue of the bushing is received in the socket of the terminator, and the probe of the terminator is electrically coupled to a contact sleeve disposed within the tongue. A latching mechanism produces positive latching between the tongue and socket when the tongue has been inserted to a predescribed depth within the socket. In order to enable an operator to visually observe that the tongue has been inserted to the prescribed depth, the bushing carries a color band which becomes completely disposed (invisible) in the socket when positive latching occurs. Alternatively, the bushing can be provided with gauge tabs which become aligned with a witness line formed on the terminator when positive latching occurs.

Abstract: An elbow terminator has a socket in which an electrical probe is disposed. The terminator is insertable onto an electrical bushing such that a tongue of the bushing is received in the socket of the terminator, and the probe of the terminator is electrically coupled to a contact sleeve disposed within the tongue. A latching mechanism produces positive latching between the tongue and socket when the tongue has been inserted to a predescribed depth within the socket. In order to enable an operator to visually observe that the tongue has been inserted to the prescribed depth, the bushing carries a color band which becomes completely disposed (invisible) in the socket when positive latching occurs. Alternatively, the bushing can be provided with gauge tabs which become aligned with a witness line formed on the terminator when positive latching occurs.

Abstract: Insulated vacuum switchgear and active switchgear elements therefor are provided with a rigid support structure mechanically isolating a vacuum insulator from axial loads in use without reinforcing or insulating encapsulations. At least one of the elastomeric insulating housing and the support structure directly contacts an outer surface of the insulator. Systems and methods for assembling the switchgear are also provided.

Abstract: An elbow terminator has a socket in which an electrical probe is disposed. The terminator is insertable onto an electrical bushing such that a tongue of the bushing is received in the socket of the terminator, and the probe of the terminator is electrically coupled to a contact sleeve disposed within the tongue. A latching mechanism produces positive latching between the tongue and socket when the tongue has been inserted to a predescribed depth within the socket. In order to enable an operator to visually observe that the tongue has been inserted to the prescribed depth, the bushing carries a color band which becomes completely disposed (invisible) in the socket when positive latching occurs. Alternatively, the bushing can be provided with gauge tabs which become aligned with a witness line formed on the terminator when positive latching occurs.

Abstract: The invention provides a faulted circuit indicator apparatus with transmission line state display, as well as methods for using the apparatus. The faulted circuit indicator has a sensor that can be electrically coupled to an electrical conductor for collecting data relating to a state of the electrical conductor. The faulted circuit indicator also has a controller that is logically coupled to the sensor for receiving data and determining whether a fault condition has occurred on the electrical conductor. The faulted circuit indicator also has one or more indicators that are logically coupled to the controller for indicating whether a fault condition has occurred as well as the state of the electrical conductor. The state of the conductor may be the voltage, the temperature, or the vibration present on the conductor.

Abstract: Medium voltage separable insulated connector system for power distribution systems and configured to make and break energized connections at rated voltage but in the absence of load current.

Abstract: An elbow terminator has a socket in which an electrical probe is disposed. The terminator is insertable onto an electrical bushing such that a tongue of the bushing is received in the socket of the terminator, and the probe of the terminator is electrically coupled to a contact sleeve disposed within the tongue. A latching mechanism produces positive latching between the tongue and socket when the tongue has been inserted to a predescribed depth within the socket. In order to enable an operator to visually observe that the tongue has been inserted to the prescribed depth, the bushing carries a color band which becomes completely disposed (invisible) in the socket when positive latching occurs. Alternatively, the bushing can be provided with gauge tabs which become aligned with a witness line formed on the terminator when positive latching occurs.

Abstract: An elbow terminator has a socket in which an electrical probe is disposed. The terminator is insertable onto an electrical bushing such that a tongue of the bushing is received in the socket of the terminator, and the probe of the terminator is electrically coupled to a contact sleeve disposed within the tongue. A latching mechanism produces positive latching between the tongue and socket when the tongue has been inserted to a predescribed depth within the socket. In order to enable an operator to visually observe that the tongue has been inserted to the prescribed depth, the bushing carries a color band which becomes completely disposed (invisible) in the socket when positive latching occurs. Alternatively, the bushing can be provided with gauge tabs which become aligned with a witness line formed on the terminator when positive latching occurs.

Abstract: Communication networks having redundant signal paths for sensed operating conditions and control parameters for electrical power transmission and distribution systems.

Abstract: Insulated vacuum switchgear and active switchgear elements therefor are provided with a rigid support structure mechanically isolating a vacuum insulator from axial loads in use without reinforcing or insulating encapsulations. At least one of the elastomeric insulating housing and the support structure directly contacts an outer surface of the insulator. Systems and methods for assembling the switchgear are also provided.

Abstract: The invention provides a faulted circuit indicator apparatus with transmission line state display, as well as methods for using the apparatus. The faulted circuit indicator has a sensor that can be electrically coupled to an electrical conductor for collecting data relating to a state of the electrical conductor. The faulted circuit indicator also has a controller that is logically coupled to the sensor for receiving data and determining whether a fault condition has occurred on the electrical conductor. The faulted circuit indicator also has one or more indicators that are logically coupled to the controller for indicating whether a fault condition has occurred as well as the state of the electrical conductor. The state of the conductor may be the voltage, the temperature, or the vibration present on the conductor.

Abstract: Insulated vacuum switchgear and active switchgear elements therefor are provided with a rigid support structure mechanically isolating a vacuum insulator from axial loads in use without reinforcing or insulating encapsulations. At least one of the elastomeric insulating housing and the support structure directly contacts an outer surface of the insulator. Systems and methods for assembling the switchgear are also provided.

Abstract: A control system and method for a motorized high voltage loadbreak switch.

Abstract: Medium voltage separable insulated connector system for power distribution systems and configured to make and break energized connections at rated voltage but in the absence of load current.

Abstract: Arc suppression systems, devices and methods for avoiding undesirable arcing conditions inside a liquid-filled tank of a high-voltage electrical apparatus.

Abstract: Communication networks having redundant signal paths for sensed operating conditions and control parameters for electrical power transmission and distribution systems.

Abstract: Liquid-filled high voltage switching units and electrical components including a primary tank and a secondary tank that do not communicate with one another in normal operation.

Abstract: A current limiting fuse with a resistance element connected in series with a currently limiting fuse element, and systems and methods therefore.

Abstract: A device includes a first conductive member configured to be electrically coupled to a first component and a second conductive member configured to be electrically coupled to a second component. The second conductive member is separated from the first conductive member by a gap. A conductive connecting member is moveable to make an electrical connection between the first and second conductive members across the gap. A housing receives the first conductive member, the second conductive member, and the connecting member. The housing includes an insulating layer and a conductive layer. The movement of the connecting member to make the electrical connection is visible through at least a portion of the insulating layer and the conductive layer.

Abstract: A make-before-break selector switch for use in high-voltage applications allows power to a load to be switched from a first power source to a second power source such that the second connection is made before the first is broken. The selector switch includes a blade coupled to a selector switch control such that the blade may be placed in a first position to electrically couple a first power source electrical contact to a load electrical contact and in a second position to electrically couple a second power source electrical contact to the load electrical contact. T-shaped and v-shaped blade implementations are examples of configurations that may be used.