Partial discharge (PD) measurement at DC voltage becomes more and more important due to the increased application of HVDC components in electrical power systems. Numerous studies of PD behaviour on various type of insulation at DC have been currently performed to find out appropria...

An alternative way of induction clamping is described, consisting in heating of the sleeve by its rotation in static magnetic field generated by suitably arranged permanent magnets. The most important dimensions of the heating system are optimised with the aim to reach the required...

This article deals with the evaluation of the size of the forces generated by the process of grinding and the size of wear on the grinding wheels when the cutting conditions are changed. Cutting speed and depth of cut most influence the wear of the grinding wheels&#x...