Bushings are insulating structures that help the electricity-carrying conductors to travel through grounded tank of the transformer safely. It is done by either dragging a separate conductor to the bushing’s centre or simply by integrating the cipf-es.org conductor into the bushing. Depending on the limitations and specifications set by the acclaimed associations and regulatory institutions, transformer bushings are designed. As they are available in various sizes, it’s always important to choose a renowned transformer bushings manufacturer in India for proper guidance.

The capacitance-graded and bulk-type bushings are the most common forms of bushing construction. The bushings which are used in low voltage winding of a transformer are mainly the solid type with an epoxy insulator. And in the case of the transformer’s high voltage winding, you must ensure that the bushings are utilised with the most suitable capacitance rating.

Types of Transformer Bushings

Different types of transformer bushings are used, including silicone rubber insulators, ceramics, solid materials, oil-impregnated paper, and resin-impregnated paper. Here is a brief on some of them.

OIP bushings: These are devoid of any partial discharge and are also highly durable. However, any failure of this type of transformer might hamper the transformer’s efficiency level to a great extent.
Solid ceramic bushings: It consists of a single conductor placed in the middle of ceramic insulator. Being the least complex, this type of bushing is undoubtedly the ideal choice if the power is at a premium level.
RIP bushings: These bushings are mostly used for high-voltage applications and fabricated easily into composite and ceramic varieties.
SRI bushings: They are a great alternative to ceramic bushings and can last longer when exposed to extensive wear and tear.

Unclean bushings might result in degradation of quality and maintenance. Cleaning and maintenance of the bushings are of paramount importance. And to ensure the same, a series of routine maintenance tests should be conducted from time to time. This will help you identify the potential reasons for transformer failure and get them fixed to ensure smooth functioning.

Reliance Potteries (RP) is an acclaimed exporter and manufacturer of high tension electro porcelain insulators. Our plan is well-equipped with a gamut of state-of-the-art facilities and tools, and we follow an integrated TQM approach for delivering world-class products. While adhering to the BS, IS, DIN, IES, and ANSI standards, we manufacture products that deliver world-class performance and extensive durability.