High Voltage Wall Bushing 6kV-220kV from China Suppliers - Quality Products by Trusted Factory
Our Main Product Range
The main products produced by the company include:
Company Strength & Business Philosophy
Our company has strong technical force, advanced technology, perfect management system, complete quality inspection equipment, and strong product R & D and production capacity. Adhering to the business philosophy of "market-oriented, quality as life, management as fundamental, science and technology first, people-oriented", the company advocates an enterprise culture of integrity, innovation, efficiency and harmony, serves the society with high-quality products and reasonable prices, and meets the different needs of customers.
Business Scope: Distributed across all levels of power grids and major energy projects in China, providing high-quality silicone rubber composite insulation supporting products for internationally famous electrical equipment manufacturers.
Product Introduction
Fcrgj glue impregnated fiber capacitive wall bushing gradually reduces the high voltage through the capacitive voltage dividing principle. In normal operation, the end screen lead is equal to the flange and grounded through the flange. This ensures that the high-voltage lead can pass through the wall or floor safely, performing the critical role of insulation and supporting the diversion.
Bushing Components
Primary winding & outer sheath
Silicone rubber umbrella skirt
Pressure equalizing cover at both ends, flange, and conductive wire clamp
Model Designation Examples
Rubber impregnated fiber capacitive wall bushing with a rated voltage of 24kV and a rated current of 3150A.
Glue impregnated fiber capacitive wall bushing with a rated voltage of 252kV and a rated current of 2500A.
Environmental & Use Conditions
Creepage Specific Distance Classification
| Classification Level | Creepage Specific Distance Value | Standard Application Note |
|---|---|---|
| Class I | 16mm / kV | Suitable for light pollution areas |
| Class II | 20mm / kV | Suitable for medium pollution areas |
| Class III | 25mm / kV | Suitable for heavy pollution areas |
| Grade IV | 31mm / kV | Default standard configuration when not specified by the user |
Main Technical Parameters
Transportation & Hoisting Guidelines
Suitable for train, ship, automobile, and airplane transport. All transport compartments must be clean and free of contaminants.
Products must be placed firmly to prevent shaking, collision, or movement during transit.
During transit, the inclination angle of the products must not exceed 30°.
When unloaded or stored at terminals, stacking must not exceed three layers. Do not stack other items on top.
Frequently Asked Questions
What types of wall bushings does the company produce?
The company produces 12kV to 252kV rubber impregnated fiber capacitive, composite, and porcelain wall bushings, as well as dry-type high-voltage wall bushings with current transformers.
How does the FCRGJ capacitive wall bushing work?
It functions by gradually reducing high voltage using the capacitive voltage dividing principle. The end screen lead is grounded via the flange, allowing the high-voltage lead to pass through walls or floors safely while providing insulation and mechanical support.
What are the environmental temperature limits for these bushings?
The bushings are designed to operate in extreme ambient air temperatures ranging from a minimum of -60 ℃ to a maximum of 55 ℃.
What is the default creepage specific distance if not specified?
If the user has no specific requirements, the default configuration is Grade IV with a creepage specific distance of 31mm/kV.
Which international standards do these high-voltage bushings conform to?
The products conform to the standard technical specifications of IEC 60137-2017 and GB/T 4109-2008 for insulating bushings with AC voltages higher than 1000V.
What are the stacking and angle limits during transport?
During transportation, the inclination angle must not exceed 30°. When stacking at transit stations or terminals, the height must not exceed three layers.
HEADING-TYPE-1
High voltage parallel capacitors are suitable for parallel connection in AC power systems with power frequency (50Hz or 60Hz) of 1kV and above. They are used to compensate for inductive reactive power, improve power factor, improve voltage quality, reduce line losses, and fully utilize the efficiency of power generation and supply equipment.
description2
HEADING-TYPE-1
High voltage parallel capacitors are suitable for parallel connection in AC power systems with power frequency (50Hz or 60Hz) of 1kV and above. They are used to compensate for inductive reactive power, improve power factor, improve voltage quality, reduce line losses, and fully utilize the efficiency of power generation and supply equipment.
description2