GB/T 1094.11-2007: [GB/T 1094.11-2007] Power transformers. Part 11: Dry-type transformers

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Scope

This part of GB 1094 applies to dry-type power transformers (including
autotransformers), where the maximum voltage of the equipment is 40.5 kV and
below, AND at least one winding is operated at a temperature higher than 1.1
kV. This part applies to dry-type transformers of various structures and
processes.
This part does not apply to.
- Inflatable dry-type transformer (when the inflatable gas is not air);
- Single-phase transformer, which has a rated capacity of less than 5 kVA;
- Multi-phase transformer, which has a rated capacity of less than 15 kVA;
- Transducer;
- Starting transformer;
- Test transformer;
- Locomotive traction transformer;
- Flameproof and mining transformers;
- Welding transformer;
- Voltage regulating transformer;
- Small power transformers that focus on safety.
When the above-mentioned transformers or other special transformers do not
have corresponding standards, this part can be applied in whole or in part.