Dry Type High Voltage Transformer Bushing

Dry-type high-voltage transformer outlet bushing is an environmentally friendly, reliable insulation and conductive component used to connect the transformer busbar and external cables. It is maintenance-free and easy to install, effectively preventing oil leakage and improving equipment safety.

transformer bushing

Transformer Bushing Product Series

The rubber-impregnated fiber capacitor transformer bushing developed and produced by Beijing Nordway Electric Power Technology Development Co., Ltd. uses rubber-impregnated fiber composite materials as internal insulation and silicone rubber or porcelain as external insulation. It has many advantages such as oil-free, gas-free, explosion-proof, environmentally friendly, maintenance-free, and strong resistance to pollution flashover.

The capacitor core of this product adopts the principle of capacitor series voltage division, reasonable field strength and structural design, which can ensure the reliable operation of the product.
This product has extremely high mechanical strength and can withstand 1250N horizontal and vertical tensile tests for 1 week each.

The product body is oil-free, which greatly simplifies the sealing mechanism of the bushing, makes the sealing more reliable, has excellent anti-leakage performance, and can withstand a 72-hour immersion test.

Our transformer bushing product series includes silicone rubber insulated transformer bushings and porcelain transformer bushings, which strictly implement IEC 60137 and GB/T 4109-2022 standards. Dry-type high-voltage transformer outlet bushings are widely used in power, industry, rail transportation, metallurgy, wind power generation and other fields to ensure safe and reliable connection between high-voltage transformers and equipment.

Silicone Rubber Transformer Bushings

Porcelain Transformer Bushings

Characteristics of Transformer Bushing

Small Size & Light Weight

Simple Structure

Short Production Cycle

Maintenance-free & Easy to Install

Explosion-proof

Environmentally Friendly

Transformer Bushing Project

Shanxi Xingcheng 126 KV Transformer Bushing Put into Operation

252KV Transformer Bushings Tested at Changzhou Xidian Transformer Plant

126KV Transformer Bushings Being Replaced on-site at Zhangjiakou Power Supply Company

Frequently Asked Questions.

The operating voltage for dry-type transformer bushings typically ranges from low to high voltage levels, depending on the design and application. Common ranges for these bushings are between 3kV and 800kV, but specialized designs can accommodate higher or lower voltages based on specific project needs.

Choosing the right bushing depends on several factors:

Voltage Level: Ensure that the bushing is rated for the voltage you are working with.
Current Capacity: Make sure the bushing can handle the amount of current flowing through it.
Environmental Conditions: Consider factors like humidity, temperature, and exposure to chemicals when selecting the material of the bushing.
Type of Equipment: Whether you are using a transformer, GIS system, or switchgear will also influence your choice.

Dry-type current transformers are commonly used in:

Substations: For measuring current in high-voltage systems.
Power Distribution Systems: For current measurement and monitoring.
Protection and Metering: For protection relays and metering systems in industrial and commercial power systems.

Dry-type bushings are typically made from high-quality materials such as:

Epoxy resin: Often used for insulating materials due to its strong dielectric properties and durability.
Porcelain or ceramic: These materials provide excellent insulation and are resistant to high temperatures.
Composite materials: Some bushings use a combination of polymer and other materials to improve strength and resistance to environmental factors.

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