High Voltage 6kV-220kV Wall Bushings - Reliable China Suppliers & Factory Solutions for Power Distribution

Main Product Range

The main products produced by the company include:

• 12kV ~ 252kV rubber impregnated fiber capacitive wall bushing
• 12kV ~ 252kV capacitive composite wall bushing
• 12kV ~ 252kV capacitive porcelain wall bushing
• 40.5kV ~ 252kV dry-type high-voltage wall bushing with current transformer
• 35kV ~ 126kV dry type high voltage current transformer
• 10kV ~ 35kV integrated capacitive coupler

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. So that the high-voltage lead can pass through the wall or floor safely and play the role of insulation and supporting the diversion.

It is composed of the following components:

Wall Bushing Model Nomenclature

• fcrgj-24 / 3150: Rubber impregnated fiber capacitive wall bushing with rated voltage of 24kV and rated current of 3150A.
• fcrgj-252 / 2500: Glue impregnated fiber capacitive wall bushing with rated voltage of 252kV and rated current of 2500A.

Use Conditions

1. Ambient air conditions:

• Ambient air temperature: maximum 55 ℃, minimum - 60 ℃.

2. Creepage specific distance (complying with GB / T 5582):

Main Technical Parameters

1. Table 1 gives the rated voltage, system working voltage, rated current, insulation level and other parameters of fcrgj type wall bushing.

• Dielectric Loss Factor: Under the voltage of 1.05ur / √ 3 and ur, the dielectric loss factor TG δ ≤ 0.4%.
• Local Discharge Capacity: ≤ 5pc under rated voltage of 1.05ur / √ 3.
• Temperature Rise: ≤ 60K, long-time operation at rated current inom.
• Heat Resistant Current: ith = 25inom, 3C.

Other technical conditions shall conform to the standards IEC 60137-2017 and GB / T 4109-2008 insulating bushings with AC voltage higher than 1000V.

Transportation and Hoisting

Product Transportation Guidelines:

• The products can be transported by train, ship, automobile, airplane and other means of transportation. The train compartment, ship compartment and automobile compartment carrying the products should be kept clean and free of pollutants.
• The loading of products shall meet the requirements in the transportation regulations, and the products shall be firmly placed. No shaking, collision and movement are allowed during transportation.
• During product transportation, the inclination shall not be greater than 30 °.
• After the products are transferred at the station wharf or unloaded at the terminal, the stacking shall not exceed three layers, and other articles are not allowed to be stacked with them.