GET A CONSULTATION -

High Voltage Bushings 40.5 kV to 1100 kV

/ High Voltage Bushings

Engineered for Reliable Power Transmission

High-voltage bushings are critical insulation components for power transformers and high-voltage electrical equipment, providing a reliable insulated path for conductors through grounded enclosures and barriers.

Our portfolio combines advanced condenser insulation technologies with solutions for a wide range of voltage levels, current ratings and equipment interfaces.

From transformer applications to complex high-voltage systems, every solution is focused on electrical performance, mechanical reliability and long-term operational stability.

Request a Quote

/ Advanced Insulation Technologies

Our high-voltage bushing portfolio includes OIP, RIP and FRP condenser insulation technologies, providing flexibility for different transformer designs and electrical equipment applications.

OIP - Oil-Impregnated Paper

A proven condenser insulation technology for transformer and wall bushing applications. The available portfolio includes solutions extending to ultra-high-voltage equipment.

RIP - Resin-Impregnated Paper

A solid condenser insulation system in which the main insulation is cured following vacuum impregnation. Porcelain or composite external insulation can be selected depending on the configuration.

FRP - Fiber-Reinforced Plastic

A condenser bushing technology combining compact construction and high strength. The technical brochure highlights sealing, waterproof performance and anti-fouling capability among its characteristics.

Oil-Air

For the transition between oil-insulated equipment and external air insulation.

Oil-Oil

For connections between oil-insulated environments.

Oil-SF6

For applications requiring an interface between oil-insulated and SF6-insulated equipment.

Wall Bushings

For insulated conductor passage through walls and grounded barriers.

The brochure includes these interface arrangements across OIP, RIP and FRP product families depending on the technology.

Request a Quote

/ High-Voltage Performance

Built for the Requirements of Modern Power Systems

Electrical performance is at the core of every high-voltage bushing.

The documented portfolio covers a broad range of voltage and current requirements, supported by specified dielectric characteristics including power-frequency withstand, lightning impulse withstand and partial discharge performance.

Up to 1100 kV

Highest Voltage for Equipment

Up to 2400 kV

Lightning Impulse Withstand

Up to 1200 kV

1-Minute AC Dry Withstand

/ High-Voltage Testing

Performance Verified Under High Voltage

Dedicated high-voltage testing capabilities are essential for evaluating the electrical performance of insulation equipment.

The testing facilities shown in the technical brochure include power-frequency withstand systems rated at 300 kV, 750 kV and 1650 kV, together with 2400 kV DC test equipment and 4000 kV lightning impulse test equipment.

1650 kV

Power-Frequency Test System

2400 kV

DC Test Equipment

4000 kV

Lightning Impulse Test Equipment

/ Manufacturing Excellence

Precision at Every Stage

Reliable high-voltage insulation starts with controlled manufacturing.

The manufacturing facilities represented in the technical brochure include dedicated equipment for condenser-core production, paper drying, vacuum drying, vacuum treatment and vacuum oil processing.

These manufacturing capabilities support the controlled production and processing required for condenser-type high-voltage bushings.

/ IEC Standard

IEC 60137

Insulated Bushings for Alternating Voltages Above 1,000 V

IEC 60137:2017 specifies characteristics and tests for insulated bushings intended for use in electrical apparatus, machinery, transformers, switchgear and installations for three-phase AC systems with highest voltage for equipment above 1,000 V.

The standard provides the international framework for characteristics and testing of insulated bushings within its defined scope.

Condenser Core Manufacturing

Vacuum Processing

Insulation Processing