Power Factor Correction

SVC TCR Valve power assemblies and STATCOM

Thyristor Controlled Reactors (TCRs) are primarily used in combination with Fixed or Mechanically Switched Capacitors (FC or MSC) to provide Static VAR Compensation (SVC). This enables improved quality of the mains voltage supply by compensating for large loads with poor power factors. Typical example applications include; flicker reductions and power factor compensation of electric arc furnaces in steel mills.

Dynex provide a complete range of watercooled SVC valve assemblies, which utilise the latest i² thyristor technology for optimum efficiency and can be used in both single phase and three phase applications. These are primarily designed for operation at 35kV, with the range extending up to 300MVar. We have a growing number of reference projects currently in operation for the entire range.

The Dynex range of TCRs have been designed with optimum performance. All thyristor modules used in the TCR valves are matched to improve static and dynamic sharing whilst N+1 redundancy is included as standard to ensure consistent availability of supply, even in the harshest of operating conditions.

These switches are directly connected to the high voltage grid with Dynex designs completing tracking and flashing requirements. All valve assemblies are tested and verified at the Dynex facility.