High voltage bushings of the RIP (Resin Impregnated Paper) and RIS (Resin Impregnated Synthetic) varieties are two that are frequently utilised in power transformers. They are made to sustain the connection between the transformer and external equipment and to offer electrical isolation.
The RIP bushing is made of paper insulation that has been resin-impregnated to boost its stability and strength. The RIS bushing, on the other hand, makes use of synthetic materials like polyester or epoxy resin to offer a comparable level of support and insulation.
These bushings’ main purpose is to keep the transformer separated from the outside world while allowing high voltage energy to flow through it. Several layers of insulation are used in conjunction with careful planning to prevent any electrical discharge or arcing to achieve this.
RIP and RIS bushings are crucial for bearing the weight of the transformer and assuring its stability in addition to their electrical capabilities. They must be able to endure a variety of environmental variables including temperature changes, wind, and vibration and are frequently installed on the transformer tank or on an exterior structure.
The appropriate operation of RIP and RIS bushings must be ensured by routine testing and maintenance in order to avoid any potential breakdowns or failures. To find any indications of deterioration or damage, this can involve visual examinations, electrical testing, and partial discharge measurements.
Overall, RIP and RIS bushings are important parts of power transformers because they offer the required electrical insulation and support for the transformer’s safe and effective operation.