Power Transformer in Oil and Gas Facilities is mainly used to change voltage level for distribution purposes, i.e. step down voltage from 6.6kV to 400V. In addition, Transformer could be an electrical isolation mean to system disturbance so that maintain service continuity. Below list of standards does not cover special transformers such as single phase transformer with power less than 1kVA, welding transformer etc.
List of codes and standards is as below:
| Reference | Title |
|---|---|
| IEC 60076-1 | Power Transformers - Parts 1 |
| IEC 60076-3 | Power Transformers - Parts 3 |
| IEC 60076-11 | Power Transformers - Parts 11 |
| IEC 60099-4 | Surge Arresters - Parts 4: Metal-Oxide Surge Arresters without Gaps for A.C. Systems |
| IEC 60137 | Insulating Bushings for Alternating Voltages above 1000 V |
| IEC 60214-1 | Tap Changers - Part 1: Performance Requirements and Test Methods |
| IEC 60296 | Fluids for Electrotechnical Applications - Unused Mineral Insulating Oils for Transformers and Switchgear |
| IEC 61099 | Insulating Liquids - Specification for Unused Synthetic Organic Esters for Electrical Purposes |
| IEC 61378-1 | Converter Transformers - Parts 1 |
| IEC 61378-3 | Converter Transformers - Parts 3 |
| IEC 61800-4 | Adjustable Speed Electrical Power Drive Systems - Part 4: General Requirements - Rating Specifications for A.C. Power Drive Systems above 1 000 V A.C. and Not Exceeding 35 kV |
| IEC 62155 | Hollow Pressurized and Unpressurized Ceramic and Glass Insulators for use in Electrical Equipment with Rated Voltages greater than 1000 V |
| IEC 62535 | Insulating Liquids - Test Method for Detection of Potentially Corrosive Sulfur in Used and Unused Insulating Oil |
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