POWERFUL AIR-COOLED RIBBON RESISTOR Russian patent published in 2010 - IPC H01C3/10 

FIELD: electric engineering.

SUBSTANCE: in resistor comprising frame with fan and split coaxial rings fixed on it, which consist of arc rods with stringed insulation bushiness, between which holders are installed with resistive ribbon bent in a zigzag manner. Split rings comprises two semi-rings each, holders are arranged simultaneously as stretchers, each zigzag of resistive ribbon consists of straight section between two holders. Point of resistive ribbon bend on holder is arranged as U-shaped, surface of resistive ribbon is arranged with incisions-turbulence promoters, fan is installed inside resistor between upper and lower split coaxial rings (semi-rings), and driving motor - over specified rings. Besides powerful air-cooled ribbon resistor is equipped with open side oval jacket, geometric centre of which is located on axis of fan shaft rotation.

EFFECT: optimised design and increased reliability of powerful air-cooled ribbon resistor.

2 cl, 3 dwg