| Brand | Switchgear parts |
| Model NO. | SF6 Sleeve for GIS, SF6 gas filled sleeve for switchgear(composite, ceramic) |
| Rated voltage | 126kV |
| Rated normal current | 2500A |
| Series | T126 |
SF6 inflatable sleeve (composite, ceramic) is mainly composed of external insulation, internal conductor, internal shielding cover, external pressure equalization ring and other components. The external insulation adopts ceramic or composite jacket, and the internal assembly includes integrated conductive rod and shielding structure. SF6 gas filled sleeve (composite, ceramic) is mainly used in GIS/GCB equipment and is an important part of power grid equipment.
Product Features
a) Innovative overall structural design, compact structure, reliable sealing performance and electric field voltage equalization; b) Innovation in electric field design technology includes current carrying design of conductive rods, internal shielding structure design, and external shielding structure design.
Product Specifications

| Model | Maximum Operating Voltage (kV) | Rated Current (A) | Creepage Distance (≥ mm) | Insulator Dry Arc Distance L2 (mm) | 1min Power Frequency Withstand Voltage (kV) | Lightning Impulse Withstand Voltage (kV) | Wet Switching Impulse Withstand Voltage (kV) | Partial Discharge Level (pC) | Terminal Bending Withstand Load (1min, N) | SF6 Rated Pressure (20℃ Gauge Pressure, MPa) | Conductive Rod Loop Resistance (≤ μΩ) | Outer Insulation Sleeve Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T126/2500-190-01 | 126 | 2500 | 3906 | 1160 | 230 | 550 | / | 126kV down≤5 | 3150 | 0.45 | ≤30 | Porcelain Sleeve |
| T252/3150-300-01 | 252 | 3150 | 9000 | 2260 | 460 | 1050 | / | 300kV down≤5 | 4000 | 0.58 | ≤45 | Composite |
| T252/4000-300-01 | 252 | 4000 | 9000 | 2260 | 460 | 1050 | / | 300kV down≤5 | 4000 | 0.58 | ≤40 | Composite |
| T252/3150-340-01 | 252 | 3150 | 7600 | 2200 | 460 | 1050 | / | 300kV down≤5 | 4000 | 0.58 | ≤45 | Porcelain Sleeve |
| T550/4000-460-01 | 550 | 4000 | 18755 | 4700 | 740 | 1675 | 1300 | 381kV down≤3 | 5000 | 0.4 | ≤60 | Porcelain Sleeve |
| T550/5000-460-01 | 550 | 5000 | 18755 | 4700 | 740 | 1675 | 1300 | 381kV down≤3 | 5000 | 0.4 | ≤40 | Porcelain Sleeve |
| T550/4000-500-01 | 550 | 4000 | 21000 | 5250 | 740 | 1675 | 1300 | 381kV down≤3 | 4000 | 0.45 | ≤60 | Composite |
| T750/5000-720-01 | 750 | 5000 | 40300 | 7540 | 830 | 1800 | 1425 | 520kV down≤5 | 4000 | 0.45 | ≤60 | Composite |
Note: 1. The size of the wiring terminal at the upper end of the outlet sleeve, the size of the guide rod at the lower end, and the flange connection size can be customized according to engineering needs; 2. SF6 annual leakage rate ≤ 0.1%; 3. Operating temperature: -40 ℃~+50 ℃, applicable altitude: ≤ 2000m.