Reactors

These reactors or smoothing reactors are normally connected in series to the rectifier in HVDC systems. Thanks to their high impedance, they reduce the magnitude of harmonic currents to provide a more constant current, protecting the rectifier, and there is also less network flicker.

They may be water or air-cooled, and made of Aluminium or Copper.

They are typically used in steelworks and ferro-alloys DC furnaces but are also found in all sectors using high current DC.

Brar has in-depth knowledge of all high current phenomena and refers to studies on electromagnetic simulations done in collaboration with university laboratories.

The following photos show a series of 8 water-cooled DC ferro-chrome furnace reactors, made of aluminium, with the following characteristics:

Inductance: 500 µH

Nominal Current: 55 kA DC

Rated Voltage: 1,500 V DC

Power losses: 500 KW

Unit weight: 12,000 kg

Reactors installation

Reactors installation