Maschinenfabrik Reinhausen Gmbh

Pcs Power Control Solutions Verwaltungs Ag

Andreas Thiede

Uwe Stephan

Thomas Steiner

Martin Hinow

Guenther Siebert

Catrina Kowal

Rene Annowsky

Yulong Huang

Sebastian Augat

Ralf Bergmann

The present invention relates to an apparatus for calibrating a power measuring system for power transformers. The general inventive concept involves the two reference measuring systems that are known from the prior art for the calibration of a current transformer, a voltage transformer and an evaluation device being integrated in a shared apparatus, according to the invention, for calibrating a power measuring system for power transformers, which apparatus is furthermore arranged on a container such that the apparatus can be moved by means of a trailer that holds the container for the purpose of in-situ calibration of the power measuring system of power transformers.

Apparatus for calibrating a power measuring system for power transformers

The present invention relates to a test system for high-voltage technology devices, in particular shunt reactors, as defined in the preamble of independent patent claim. The invention also relates to a method which can be carried out with this test system and is intended to test high-voltage technology devices according to coordinate patent claim. The general idea of the test system according to the invention is to provide a continuously adjustable inductance and a capacitance, which can be adjusted in discrete steps, on the secondary side of the test transformer in such a manner that said components form a series resonant circuit together with the test object in the form of an inductance. In the method which can be carried out with the test system according to the invention, a rough adjustment of the test system is carried out using the discretely adjustable capacitances of the capacitor bank by connecting individual capacitances of the capacitor bank via an iterative process if an undercapacitance is measured in the test system by means of a measuring device or by disconnecting individual capacitances if an overcapacitance is measured by means of the measuring device until a predefined threshold value of an overcapacitance prevails, with the result that fine tuning of the test system is then carried out by means of the continuously adjustable inductance in such a manner that said components form, together with the test object in the form of an inductance, a series resonant circuit which can be tuned to the point of resonance thereof.

Test system and method for testing high-voltage technology

An apparatus for testing a high-voltage equipment transformer or inductor has a filter transformer having a primary side connectable to line and a secondary side and a grounded electrostatic shield between the primary and secondary sides. A static frequency converter has a plurality of inputs connected to the filter-transformer outputs and a plurality of outputs. Respective capacitors each have one side connected to a respective one of the converter outputs and an opposite side connected star-fashion to a common ground. A matching transformer has a plurality of inputs connected to the capacitors and a plurality of outputs connectable to the transformer or inductor to be tested.

Device for testing high-voltage equipment

The invention relates to a device for testing transformers, having a static frequency converter (). The static frequency converter () comprises a plurality of outlets (), which are connected to a filter device (). The filter device () also comprises a plurality of outlets (), which are connected to a matching transformer (), and wherein the matching transformer () is connected to the transformer () intended for testing. The filter device () is a filter transformer ().

Apparatus for testing transformers

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Schoenborn/Langebrueck, Germany

Andreas Thiede