Static Var Compensation for the SPS Electrical Network

The electrical installations of the SPS pulsed electrical network consist of power converters for dipoles and quadrupoles, RF cavities and the north experimental area. Large pulsing loads like these can only be connected to the 18 kV electrical network if a Static Var Compensator takes care of reactive power compensation, voltage control and harmonic filtering. This paper explains the underlying principles of static var compensation and gives an overview of the existing two saturated reactor compensators. Finally, a project description is given for the planned installation of a third Static Var Compensator for the SPS pulsed network which will be based on Thyristor Controlled Reactor technology.