Short answer: transformer maintenance parts RFQs should include transformer rating, voltage ratio, drawing, part position, bushing interface, gasket size, oil compatibility and test requirement.
| Bushings | Confirm HV, LV or neutral side, voltage, current, flange, thread and terminal dimensions. |
|---|---|
| Gaskets and seals | Match oil compatibility, temperature, size and transformer tank interface. |
| Tap changer parts | Confirm model, current rating, steps, drawing and manufacturer reference. |
| Protection accessories | Include breather, oil level gauge, pressure relief device, thermometer and terminal parts when needed. |
Transformer spare parts should not be quoted by part name alone. Drawing and mounting dimensions are usually required.
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