FJH-110/160 Insulator Equalizing Ring
FJH-110/160 Insulator Equalizing Ring is a high-voltage grading ring designed to improve electric-field distribution around composite and porcelain suspension insulators. By reducing electric-field concentration at the ends of the insulator string, it helps limit corona discharge, radio interference, and localized electrical stress.
Made from lightweight, corrosion-resistant aluminum alloy, the FJH-110/160 features a convenient bolt-on clamp structure for easy installation. It is suitable for 110kV–220kV transmission lines, substations, and outdoor high-voltage insulation systems, with configurations adaptable to different insulator types and tower arrangements.
Get a QuoteOverview
The FJH-110/160 Insulator Equalizing Ring is a high-voltage grading ring designed to improve electric-field distribution around suspension insulator strings used in 110kV–220kV transmission lines and substations. By reducing electric-field concentration at the ends of the insulator string, it helps limit corona discharge and reduce localized electrical stress.
Designed for outdoor high-voltage applications, the FJH-110/160 can be used with both FXBW composite suspension insulators and traditional ceramic suspension insulators. Its application can be adapted to different system voltage levels, insulator string configurations, and installation requirements, helping improve insulation reliability and long-term operating performance.
Key Functional Benefits
- Uniform Electric-Field Distribution
Helps distribute electrical stress more evenly along the insulator string, reducing localized field concentration at critical areas. - Reduced Corona & Radio Interference
Helps minimize corona discharge and associated radio interference, particularly under humid or polluted outdoor conditions. - Improved Insulator Protection
By reducing localized electrical stress and voltage concentration, the grading ring can help protect the insulator and support longer service life. - Flexible Application
Can be configured for different insulator types, string arrangements, and transmission tower designs, supporting a range of high-voltage installation requirements. - Lightweight & Corrosion-Resistant Construction
The aluminum alloy structure provides low weight, good mechanical performance, and resistance to outdoor corrosion. - Easy Bolt-On Installation
The clamp-style mounting system allows convenient installation without welding, helping simplify field assembly and maintenance.
Technical Data
Regular equizing ring selection table
| Model(Closed Type) | Model(Open Type) | Ring Diameter | Scope of Application |
| FJH-110/100 | FJHK-110/100 | Φ250 | 70kN or 100kN |
| FJH-110/160 | FJHK-110/160 | 160kN or 210kN | |
| FJH-220/100 | FJHK-220/100 | Φ305 | 70kN or 100kN |
| FJH-220/160 | FJHK-220/160 | 160kN or 210kN | |
| FJH-330/100 | FJHK-330/100 | Φ400 | 70kN or 100kN |
| FJH-330/160 | FJHK-330/160 | 160kN or 210kN | |
| FJH-500/100 | FJHK-500/100 | 70kN or 100kN | |
| FJH-500/160 | FJHK-500/160 | 160kN or 210kN |
| Model | Umbrella Diameter | Installation of Inner Diameter | Scope of Application |
| FJH-110/100FN | Φ250 | Φ29 | 70kN or 100kN |
| FJH-110/160FN | Φ36 | 160kN or 210kN | |
| FJH-220/100FN | Φ305 | Φ29 | 70kN or 100kN |
| FJH-220/160FN | Φ36 | 160kN or 210kN | |
| FJH-330/100FN | Φ400 | Φ29 | 70kN or 100kN |
| FJH-330/160FN | Φ36 | 160kN or 210kN |
Selection Table of Weight Equizing Ring
| Model | Ring Diameter | Scope of Application | Weight(kg) |
| FJHZC-15/100 | Φ250 | 70kN or 100kN | 15 |
| FJHZC-15/160 | 160kN or 210kN | ||
| FJHZC-27/100 | Φ305 | 70kN or 100kN | 27 |
| FJHZC-27/160 | 160kN or 210kN | ||
| FJHZC-40/100 | Φ405 | 70kN or 100kN | 40 |
| FJHZC-40/160 | 160kN or 210kN | ||
| FJHZC-40/300 | 300kN |
