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Dielectric response of oil impregnated kraft paper has been measured in the frequency range 8 Hz to 2MHz in a custom designed test cell. Temperature was varied between −17 and 60 °C, allowing master curves for 20 °C condition to be established for the frequency range 10 mHz to 10 MHz. Paper types...

This report considers measurements of geomagnetically induced current (GIC) and comparison to recorded variations in the geomagnetic field (dB/dt). The GIC-sensors were installed in the neutral point of a 420 kV transformer located in Mid-Norway in 2019. The magnetometers (for dB/dt) are also...

We analyze the control problem for a steam cycle that produces power by recovering waste-heat from gas turbines on an offshore installation. The waste-heat recovery unit is based on once-through steam generator technology. The main disturbances are large variations of the gas turbine exhaust gas...