Abstract: A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor coupled to the first regulator control, the second regulator control, and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first, second, and third regulator controls.

Abstract: A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor coupled to the first regulator control, the second regulator control, and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first, second, and third regulator controls.

Abstract: A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor coupled to the first regulator control, the second regulator control, and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first, second, and third regulator controls.

Abstract: A measuring apparatus (1) for measuring at least one geometric variable (h), and to a corresponding measuring method are provided. The measuring apparatus (1) is preferably designed as a handheld apparatus for creating a dimensional measurement of an examination object (3). The measuring method according to the invention is distinguished by the fact that from a sequence of images, preferably recorded by a camera (5), both robust features (9) and precise features (13) to be distinguished therefrom in a regular manner are detected, such that a robust 3D model is created and precise information about the geometric variable (h) to be measured is calculated.

Abstract: A site measuring device (4) for determining a geometric measurement variable of an object (1) based on a three-dimensional model (11) which is stored in a model memory (13) and has a gravity vector (g). The site measuring device (4) has a marking unit (14) that marks a first feature (P0) and a second feature (P1) in the model (11) and a fitting unit (15) that determines a first auxiliary geometry (L0), which contains at least the first marked point feature (P0) and extends parallel to the gravity vector (g), and determines a second auxiliary geometry (E1), which contains at least the second marked feature (P1) and extends perpendicular to the gravity vector (g) and for forming the point of intersection (P2) of the auxiliary geometries (L0, E1). A calculation unit (17) calculates the geometric measurement variable with the aid of the point of intersection (P2).

Abstract: A method for identifying corresponding image regions in a sequence of images (1; 21) is provided, wherein one or more features (P2a, P2b) from a second image are assigned to each feature (P1a, P2a) from a first image using correspondence graphs. The costs (C1-C5) that are associated with each assignment are represented by functions. The concrete selection of a unique correspondence for each feature which is then used for the further calculations is performed on the basis of these costs.