Abb Oy

Jarkko Alanen

Rainer Kolmonen

Harri Mattlar

Aki Suutarinen

Juho Salo

Osmo Pikkala

Martti Tuononen

The invention relates to an arrangement for attaching a switch control shaft to a switch pipe shaft, where the control shaft is mounted partly in the switch pipe shaft and tightened to the switch pipe shaft by a screw. The arrangement comprises a tightening piece. The screw is arranged to act on the control shaft through the tightening piece so that when the screw is turned, the tightening piece is arranged to press the control shaft against the pipe shaft so that the control shaft tightens fast between the tightening piece and the pipe shaft.

Arrangement for securing switch control shaft to switch pipe shaft

A modular switching device is disclosed which includes a plurality of interconnected modules, the modules having a control device module and a pole cell module, the modules of the switching device being interconnected with a shaft adapted to transfer a torque required for operating the switching device from one module to another module. The modular switching device is configured such that each module has a shaft element, and the shaft transferring the torque is composed of directly interconnected shaft elements.

Modular switching device

A switching device module comprising a frame (), the switching device module being adapted to be connected to another switching device module for providing a modular switching device. The frame () of the switching device module is provided with one or more wire troughs (), each of which is adapted to receive at least one wire of an auxiliary circuit of said modular switching device.

Switching device module

A switching device is disclosed which includes a working shaft and a control shaft installed in a frame part, the control shaft being rotatable and adapted to turn the working shaft, and the working shaft being adapted to change the position of poles of the switching device. One of the two shafts passes through the other.

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Ylihärmä, Finland

Jarkko Alanen