Transformer Bushing
IEC 60137 · RIP / OIP · Brand Cross-Reference
High-voltage transformer bushings with voltage-class and brand cross-reference support for outage, retrofit and overhaul planning.
Designed for practical power-asset applications
Transformer bushings provide an insulated, mechanically supported path for conductors through the transformer tank or enclosure. Selection is confirmed against voltage class, current, insulation type, creepage requirement and existing mounting interface.
What we confirm before quotation
We coordinate the technical and commercial details with the appropriate manufacturing partner before confirming price, lead time and documents.
Supply format
Project-configured equipment supplied through qualified manufacturing partners; rating, documentation and delivery schedule are confirmed before order acceptance.
Typical document package
Datasheet, dimensional or wiring information, inspection records and export documents are provided where applicable to the selected configuration.
Please include in your inquiry
- Voltage
- Current
- Existing part number
Technical Specifications
| Standard | IEC 60137 |
| Max System Voltage | 12 / 24 / 36 / 52 kV (by model) |
| Rated Current | 200 A – 2000 A typical (higher on inquiry) |
| Types | OIP, RIP (resin-impregnated paper), epoxy resin |
| Creepage | By pollution level and voltage class |
| Power Frequency Withstand | Per IEC 60137 test values for selected class |
| Adaptation | OEM cross-reference to ABB, Siemens, Weidmann and Chinese OEM profiles |
Parameters above reflect standard export configurations. Exact values for your voltage class, ratio or kVA rating are confirmed against the factory datasheet in the quotation before order acceptance.
Features & Benefits
IEC 60137 Selection
Voltage class, insulation level, current rating and creepage distance are coordinated with the transformer duty and site pollution level.
RIP / OIP Options
Resin-impregnated paper, oil-impregnated paper and epoxy-resin constructions are available by application and interface.
OEM Cross-Reference
Existing bushing nameplates, drawings or photographs can be used to confirm electrical and mechanical interchangeability.
Outage-Ready Supply
Routine test documentation, dimensional drawings and packing details support planned transformer replacement work.
Typical Applications
Replace aged, damaged or oil-leaking bushings during planned transformer maintenance and outage work.
Adapt bushing interfaces for transformer refurbishment, uprating or replacement of obsolete components.
Supply common medium-voltage bushings for utility and industrial distribution transformer fleets.
Use epoxy-resin or cast-resin bushing solutions where the transformer enclosure and insulation system require them.
Product Variants
| Model | Specification |
| 12 kV / 400 A | RIP or OIP · tail / draw-lead · distribution transformer |
| 24 kV / 630 A | RIP · substation transformer spares |
| 36 kV / 800 A | RIP/OIP · power transformer MRO |
| 36 kV / 1250 A | RIP · high-current bushing (confirm tank interface) |
| Epoxy resin 10–24 kV | Cast resin type for dry-type and compact units |
Exact ratings for your system voltage and duty are confirmed in the quotation against the factory datasheet. Custom configurations available on inquiry.
Frequently Asked Questions
What is a transformer bushing?
A bushing insulates and supports the conductor passing through the transformer tank wall.
How do I select the correct voltage class?
Match rated voltage and insulation level to your transformer nameplate and system voltage.
Can you provide OEM cross-reference?
Yes — provide existing part numbers for cross-reference support.
