
Choosing Oil-to-SF6 and Wall Bushings for Equipment Interfaces
Check oil and gas interfaces, sealing, wall penetration, insulation level and the applicable test plan against equipment drawings.

Air-to-gas capacitive lead-out bushing connecting GIS assemblies to overhead transmission lines.
Match the electrical duty and transformer or wall interface before requesting a design.
IEC 60137 applies to complete AC bushings; confirm edition and model-specific test evidence. Replacement fit requires drawing approval.
| Model | Housing | Rated voltage | Rated current | 1 min power-frequency withstand | Lightning impulse withstand | Cantilever / bending load | Weight |
|---|---|---|---|---|---|---|---|
| FETA-126/630 | Composite | 126 kV | 630 A | 230 kV | 550 kV | 3150 N | 180 kg |
| FETA-170/2000 | Composite | 170 kV | 2000 A | 275 kV | 650 kV | 3150 N | 430 kg |
| FETA-252/3150 | Composite | 252 kV | 3150 A | 460 kV | 1050 kV | 5000 N | 430 kg |
| FETA-363/4000 | Composite | 363 kV | 4000 A | 510 kV | 1175 kV | 5000 N | 1270 kg |
| CET-550/4000 | Porcelain | 550 kV | 4000 A | 740 kV | 1675 kV | 5000 N | 1970 kg |
Dimensions, interfaces and replacement compatibility require approved drawings and technical review.
Gas Leakage Prevention: Triple seal barrier protects GIS gas purity.
Extreme Pollution Resilience: Available with composite silicone shed profile reaching 31mm/kV creepage.
High Cantilever Capability: Resists conductor pull and gale-force wind loading up to 5000N.
Epoxy resin impregnated core with optimized electric field gradation.
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Check oil and gas interfaces, sealing, wall penetration, insulation level and the applicable test plan against equipment drawings.

Compare oil and dry-core construction, mounting, maintenance and model-specific IEC 60137 test evidence before choosing a transformer bushing.

Review field grading, dimensions, impregnation, curing and model-specific dielectric tests when sourcing RIP condenser cores.