
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.

Oil-immersed transition bushing between transformers and oil-filled cable boxes.
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 | Rated voltage | Rated current | 1 min power-frequency withstand | Lightning impulse withstand | Cantilever / bending load | Weight |
|---|---|---|---|---|---|---|
| ETOD-126/1250 | 126 kV | 1250 A | 230 kV | 550 kV | 3150 N | 40~50 kg |
| ETOD-170/630 | 170 kV | 630 A | 325 kV | 750 kV | 4000 N | 190 kg |
| ETOD-252/630 | 252 kV | 630 A | 460 kV | 850 kV | 4000 N | 120 kg |
| ETOD-363/1250 | 363 kV | 1250 A | 570 kV | 1175 kV | 4000 N | 190 kg |
| ETOD-550/550-02 | 550 kV | 550 A | 750 kV | 1675 kV | 4000 N | 480 kg |
Dimensions, interfaces and replacement compatibility require approved drawings and technical review.
Submerged Operation: Designed specifically for complete oil immersion at both ends.
Compact Space Envelope: Drastically smaller dimensions compared to air-oil bushings.
Reliable RIP Core: Complete immunity to internal oil leakage or moisture ingress.
Epoxy resin impregnated paper core with oil-resistant epoxy surface barrier.
Enter your requirements and send them to our sales desk. If online sending is unavailable, you get an email draft instead.

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.