Abstract: A control system for a voltage regulation device is configured to determine a tap position of a tap changing mechanism of the voltage regulation device, the control system being configured to: determine an internal impedance of the voltage regulation device based on an initial tap position; determine a voltage of the internal impedance based on a measured load current; determine a voltage of the first winding based on the input voltage, the output voltage, and the voltage of the internal impedance; and determine the tap position based on the voltage of the first winding, N, and a voltage of a second winding, where N is an integer value that represents a count of turns on the second winding.

Abstract: A control system for a voltage regulation device is configured to determine a tap position of a tap changing mechanism of the voltage regulation device, the control system being configured to: determine an internal impedance of the voltage regulation device based on an initial tap position; determine a voltage of the internal impedance based on a measured load current; determine a voltage of the first winding based on the input voltage, the output voltage, and the voltage of the internal impedance; and determine the tap position based on the voltage of the first winding, N, and a voltage of a second winding, where N is an integer value that represents a count of turns on the second winding.

Abstract: A system for an electrical power distribution network receives electricity from one or more distributed energy resources. The system includes a voltage regulation device configured to maintain a voltage in the electrical power distribution network within a range of voltages, the voltage regulation device including a voltage sampling module configured to obtain an indication of a voltage in the electrical power distribution network; and a control system coupled to the voltage regulation device, the control system configured to: determine a metric related to a time rate of change of the voltage in the power distribution network based on at least two samples of the voltage in the electrical power distribution network obtained at different times; and change at least one operating parameter and/or an operating mode of the voltage regulation device based on the determined rate of change of the voltage.

Abstract: A system for an electrical power distribution network receives electricity from one or more distributed energy resources. The system includes a voltage regulation device configured to maintain a voltage in the electrical power distribution network within a range of voltages, the voltage regulation device including a voltage sampling module configured to obtain an indication of a voltage in the electrical power distribution network; and a control system coupled to the voltage regulation device, the control system configured to: determine a metric related to a time rate of change of the voltage in the power distribution network based on at least two samples of the voltage in the electrical power distribution network obtained at different times; and change at least one operating parameter and/or an operating mode of the voltage regulation device based on the determined rate of change of the voltage.

Abstract: A method and apparatus for manufacturing a film-covered flange having the following steps. An injection molding press having a mold cavity and a core receives a pre-molded thermoformed film. The film is formed to have an in-turned flange portion that will form the covering for the final article. The film is placed within the mold cavity. The core has a slide movable between retracted and extended positions. The slide is retracted and the core is moved within the mold cavity. After the press is closed the slide is moved from the retracted position to the extended position. The slide includes a recessed portion that lies opposite the flange portion to create a space therebetween. A molten plastic material is injected into the space. The plastic material adheres to the flange portion and forms an article having a covered flange.