Maschinenfabrik Reinhausen Gmbh

Continental Automotive Gmbh

Alexander Reich

Volker Karrer

Nikolaus Unterreiner

Simon Flotzinger

Karsten Viereck

Andrey Gavrilov

Manfried Kruska

A method controls an UPS with a system having: first and second terminals, a switch having: first and second switch terminals respectively connected to the first and second terminals; first and second thyristors connected between the first and second switch terminals in anti-parallel; and an inverter connected to the second terminal and the energy store. Switch current and a first potential at the first terminal are detected. In a first fault, where the first potential drops past a first rule and the switch current rises above a second rule: a second potential at the second switch terminal is set using the inverter so the switch current becomes zero. Then the switch current is compared with a second threshold, and if it is exceeded, a first check result is positive, otherwise it's negative. When positive, the second potential is reversed.

Method for controlling an uninterruptible power supply and system for an uninterruptible power supply

The invention relates to a switching device, in particular an on-load tap changer, having a housing and at least one exchangeable switching module. The switching device (), in particular on-load tap changer, comprises a housing (); an exchangeable switching module (&#x2033;); a fixed contact () arranged inside the housing (); a guide rail () arranged inside the housing (). The switching module (&#x2033;) has a movable contact () that can be releasably connected to the fixed contact (). The switching module (&#x2033;) has a lower distribution plate () that is movably connected to the guide rail ().

Pull-out switch assembly with replaceable switch module

An on-load tap changer has a housing, a switching module inside the housing and having a switch and a cooling conduit, an insulating liquid that surrounds the switching module inside the housing, and a cooling circuit comprising a pump, the cooling conduit and a heat exchanger. The interior of the housing and the cooling circuit are hydraulically connected together for flow of the insulating liquid through the cooling circuit and the housing and cooling of the housing with the insulating liquid.

Switch

The invention relates to a tap changer for voltage regulation with semiconductor switching components on a regulating transformer having a regulating winding. The tap changer is of a modular design and each module comprises, respectively, one partial winding of the regulating winding that is connectable or disconnectable by means of semiconductor switching components. Varistors and capacitors are additionally integrated for protecting the semiconductor switching components against high voltages.

Tap switch

The invention relates to a power transformer with electronic components. The aim of the invention is to arrange the energy supply of the electronic components of a power transformer closer to the components and thus eliminate the disadvantages of the prior art. According to the invention, a stray field collector is brought into a stray field of the power transformer, whereby a voltage is generated.

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Mintraching, Germany

Alexander Reich