The RIS High-Voltage Transformer Bushing represents advanced insulation technology for power transmission applications. Designed for voltage classes from 24 to 245 kV and current r...

The RIS High-Voltage Transformer Bushing represents advanced insulation technology for power transmission applications. Designed for voltage classes from 24 to 245 kV and current ratings from 800 to 3150 A, this oil-air variant utilizes resin-impregnated synthetic (RIS) insulation within a durable silicone/polymer composite housing. Unlike traditional oil-filled designs, this bushing operates completely oil-free, eliminating leakage concerns while providing excellent dielectric strength. The condenser-graded construction ensures uniform voltage distribution, preventing partial discharge and extending service life. With its lightweight architecture—significantly lighter than conventional OIP bushings—it simplifies handling and installation while maintaining high mechanical, thermal, and seismic performance. Ready for immediate energization after installation, it supports safe transportation and storage at any orientation.

This transformer bushing finds essential application across power generation, transmission, and industrial sectors. Utility companies deploy it in substation transformers where reliable 24-245 kV bushings are critical for grid stability. Industrial facilities with large power transformers benefit from its 800-3150 A current capacity for heavy machinery operations. Renewable energy projects utilize these bushings in step-up transformers for wind and solar farms, where environmental resistance is paramount. The seismic-resistant design makes it ideal for earthquake-prone regions, while the oil-free construction suits installations with strict environmental regulations. Manufacturing plants, mining operations, and large commercial complexes rely on these bushings for uninterrupted power supply to their high-voltage equipment.

The business value of this RIS bushing lies in its operational reliability and reduced lifecycle costs. By eliminating oil maintenance and leakage risks, it minimizes unexpected downtime and environmental liabilities. The lightweight design reduces installation time and labor costs while the robust construction withstands thermal cycling and mechanical stress, extending maintenance intervals. Manufacturers gain competitive advantage through improved transformer reliability, while operators benefit from enhanced safety with non-flammable, self-extinguishing materials. The immediate energization capability accelerates project commissioning, and the standardized IEC compliance ensures global acceptance. This combination of technical excellence and practical benefits delivers superior return on investment through reduced operational risks and long-term performance consistency.

Key Features:
- IEC-compliant design for 24-245 kV voltage classes and 800-3150 A current ratings
- Oil-free operation with resin-impregnated synthetic (RIS) insulation technology
- Lightweight silicone/polymer composite housing with hydrophobic, shatter-proof sheds
- High mechanical strength with seismic resistance and thermal tolerance up to 120°C
- Condenser-graded construction for uniform voltage distribution and partial-discharge-free operation

Benefits:
- Eliminates oil leakage risks and associated maintenance while ensuring environmental safety
- Reduces installation time and costs with lightweight design and immediate energization capability
- Enhances operational reliability with consistent dielectric performance in demanding conditions
- Extends service life through robust construction resistant to thermal cycling and mechanical stress
- Provides global compatibility with IEC standards for seamless integration into existing systems