Contact usIzolyator bushings with internal RIN insulation are approved by Rosseti Group
On July 3, 2019, the certifying commission of Rosseti Group issued letters on the compliance of the Izolyator bushings with internal RIN insulation with technical requirements of Rosseti for use at facilities of subsidiaries and affiliates.
The solid RIN insulation (Resin Impregnated Nonwoven) has been developed by Izolyator’s design office in collaboration with partners with the aim to increase water-tight features of the internal insulation of high-voltage bushings in severe operating conditions or for situation when operating and storage conditions are violated.
The main insulation is a nonwoven polymer material that has no cellulose, and as a consequence possessing extremely high hydrophoby and resistibility to atmospheric humidity, which virtually eliminates any moistening of insulation.
The material is void of water in the first place, which allows to eliminate thermal vacuum drying of wound core. This means a more reliable insulation and a shorter production cycle.
In all other details RIN insulation making process is identical to RIP technology.
RIN insulation can be used both with porcelain and polymer external insulation.
Izolyator has patented RIN trademark and production technology and received certificates of conformity of RIN bushings to Russian and international standards.
Conclusions of the certification committee of Rosseti Group:
bushings of the rated voltage up to 172 kV inclusive for transformers
bushings of the rated voltage ranging 252–550 kV inclusive for transformers
wall bushings of the rated voltage ranging 73–252 kV inclusive
bushings of the rated voltage ranging 40.5–252 kV inclusive for circuit breakers
500, 330 and 220 kV RIN bushings placed on technological racks at the assembly shop of Izolyator Company