Rectangular wire with corona-proof polyimide and fluoroplastic insulation

Winding wire of rectangular cross section with corona-proof insulation of PPKSP‑T, PPKSP‑1 and PPKSP‑2

The rectangular winding wire with corona-proof insulation of PPKSP‑T, PPKSP‑1 and PPKSP‑2 makes are produced by means of rectangular (round) wires winding with corona-proof polyimide and fluoroplastic film followed by combined heat treatment for insulation including inductive warming of electric core and the wire external heat. Above procedure ensures a high degree of insulation adhesion to the electric copper core and so improves specification data greatly. The wires insulation is made of corona-proof polyimide and fluoroplastic films from leading global producers. It differs by elasticity and mechanical stability. The wires meet the strict requirements for safety and reliability. As a result of corona-proof insulation use the wires offer resistance to partial discharges effect.

The wires are designed to produce winding for railway motors, for municipal transport (metro trains, trams, trolleybuses) and electrical machines special types. The wires are purpose designed for motors with variable speed drive system and for other electrical machines with higher risk of partial discharges effect.

The wires comply with the TU 27.32.11‑005‑49316720‑2017 « Provoda obmotochnyye pryamougolnyye s koronostoykoy izolyatsiyey» requirements. At the request of the consumer can be made of wires with higher technical characteristics.

Main technical characteristics