Maschinenfabrik Reinhausen Gmbh

Thomas Schuster

Andreas Sachsenhauser

Georg Kellendorfer

Christian Hammer

Uwe Kaltenborn

Christian Pircher

Robert Hiltner

Andreas Raith

Moritz Bengler

Max Weidinger

Silke Wrede

Alfred Bieringer

Gerhard Baeuml

Hubert Zwirglmaier

Konrad Raedlinger

Hurbert Zwirglmaier

Ulli Laubereau

Gerhard BÄUML

Konrad RÄDLINGER

Jürgen Kollmannsberger

An on-load tap changer is for uninterrupted diverter switch operation. The on-load tap changer includes: a first module having a first module shaft; and a second module having a second module shaft. The first module shaft is configured to actuate the first module. The second module shaft is configured to actuate the second module. The first module shaft and the second module shaft are mechanically coupled to one another in such a way that the first module shaft is configured to drive the second module shaft and the second module is configured to be actuated with a time delay with respect to the first module.

On-load tap changer

An on-load tap changer uninterruptedly switches between winding taps of a tap-changing transformer. The on-load tap changer includes: at least one selector configured to preselect, in a powerless manner, a selected winding tap of the winding taps; at least one diverter switch configured to actually switch loads from a previous winding tap to a preselected winding tap of the winding taps; at least one toothed gearing comprising a first gearwheel and a second gearwheel, the first gearwheel being assigned to the selector, and the second gearwheel being assigned to the diverter switch; and a drive shaft, which is configured to be actuated by a motor drive. The first gearwheel and the second gearwheel are directly interconnected mechanically in such a way that the first gearwheel and the second gearwheel are simultaneously actuatable. The drive shaft is configured to drive either the first gearwheel or the second gearwheel.

A selector can be used in an on-load tap changer. The selector includes: a tap selector comprising at least one selector arm; and a change-over selector. The change-over selector is configured to be actuated via at least one of the selector arms of the tap selector.

Selector for on-load tap changer

A network node for a substation or a local network station has a control transformer with a primary side and a secondary side, an input line connected to the primary side, and an output line connected to the secondary side. A protective switch is provided in the input line or in the output line, and a sensor detects an electrical parameter in the input line or in the output line and generate a measurement signal. A controller coupled to the control transformer, to the protective switch, and to the sensor, serves to operate the control transformer in dependence on the measurement signal such that the control transformer has a predetermined transmission ratio and open the protective switch in dependence on the measurement signal as soon as the control transformer has the predetermined transmission ratio.

Power-network note, variable transformer and method of operating the node

A support module () for polarization resistors of an on-load tap changer comprises:&#x2014;a supporting region () for at least one polarization resistor; &#x2014;a first joint region (); &#x2014;a second joint region () which is compatible with the first joint region. A support frame () for polarization resistors of an on-load tap changer comprises:&#x2014;two such support modules which are joined by virtue of the second joint region of the first support module bearing at least partially against the first joint region of the second support module. A fastening element () for polarization resistors () comprises:&#x2014;two electrically conductive accommodating sections (), which each have an accommodating opening () for one of the ends () of a polarization resistor ();&#x2014;an electrically conductive connecting section (), which connects the two accommodating sections () mechanically and electrically to one another;&#x2014;a first piece (), which comprises the first accommodating section () and an adjoining first part of the connecting section (); &#x2014;a second piece (), which comprises the second accommodating section () and an adjoining second part of the connecting section (); wherein:&#x2014;the first and second parts are in the form of a plug-type connection.

Support and fastener for polarization resistors of on-load tap changer

The invention relates to an on-load tap changer () according to the reactor switching principle for uninterrupted load switching between different tap windings of a tapped transformer (), comprising: &#x2014;an inductor () which is designed as an inductive transition reactance; &#x2014;the inductor () being part of the on-load tap changer ().

On-load tap changer according to the reactor switching principle

In an on-load tap changer () for controlling voltage of a tapped transformer () it is provided that

On-load tap changer, tap-changing transformer for voltage regulation and method for implementing tap changer in the tap-changing transformer

A load selector for tapped transformers has an oil tank and a preselector having a first preselector contact and a second preselector contact for each phase to be switched by the load selector. The first preselector contact and the second preselector contact are mounted on a wall of the oil tank and extending through the wall of the oil tank. A first zero contact and a second zero contact separate from the first zero contact are provided for each phase to be switched by the preselector. The first zero contact and the second zero contact are each mounted on the wall of the oil tank and extend through the wall of the oil tank.

Selector switch for tap-changing transformers and support arm for a tap selector thereof

A tap-changer selector for uninterrupted switching between two winding taps of a tapped transformer has fixed contacts arranged circularly in several horizontal planes at a selector housing and a centrally extending rotatable drive shaft in an interior of the selector housing and in each of the horizontal planes of the fixed contacts carries at least one movable contact for connection thereof. The selector housing consists of a plurality of honeycomb segments, and the honeycomb segments are arranged adjacent to one another in the circle in a horizontal plane. A plurality of honeycomb segments arranged in a plane in the circle are arranged vertically one above the other and the honeycomb segments have mounting regions and are so interconnectible by these mounting regions to form when at least two honeycomb segments are connected a mechanically positive connection between at least two mounting regions of the individual honeycomb segments.

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Wuppertal, Germany

Thomas Schuster