Grid transient measurements

Decoupling of current signals in the secondary windings of voltage converters

Grid transients occur when switching actions take place, but they can also be caused by lightning. An understanding of the processes and quantification of the maximum voltages and currents that occur in these cases is a key factor in the coordination of insulation (dimensioning of equipment insulation and equipment to protect against excess voltage). FKH offers measurements of transient events of all types.

Ferroresonance problems

Apart from the problems caused by fast grid transients, other important issues relate to low-frequency phenomena such as resonance and ferroresonance events that can cause thermal overloads of grid components as well as insulation overloads. FKH regularly carries out investigations of disruptive events such as these.

Multi-channel oscilloscope to record the three-phase current and voltage oscillations

Phase voltage and current flow through the primary winding of a voltage converter during a three-phase ferroresonance oscillation