Expertise in electrical systems
Expertise in electrical systems

Dynamic Studies

Determination of dynamic behaviour during normal operation modes as motor starting, and failure modes such as short circuit including also load shedding.

A model representation of network and electrical equipment (including generators, speed governors, turbines, AVRs, and motors) .

The analysis comprises the following disturbances:

  • Motor start calculations for largest motors on each MV level.
  • Loss of generation case, with subsequent electrical fast load shedding.
  • Loss of cables
  • Load shedding cases.
  • Short circuit in the HV system.



Example: Motor voltage during motor start
Example: Motor current and speed during motor start
Example:Transient analysis during energizing a long sea-cable (13,8 kV, 10km length)

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