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Technical standard for 35kV station transformer Technical Standard for 35kV Station Transformer of State Grid, 2018 Edition, Double winding Oil immersed Transformer -
IEC60076 transformer standard (English version) A complete set of IEC60076 transformer standards - English version -
Compilation of Electric Power Industry Standards (Electrical Volume). pdf Compilation of Electric Power Industry Standards (Electrical Volume). pdf -
Installation process standard of power transformer This process standard is applicable to the installation of 10kV and below indoor transformers in general industrial and civil building electrical installation engineering. -
Some Common Sense about Transformer Some Common Sense about Transformer -
Relevant requirements on transformer room door Some transformer doors do not need fire protection, and some transformer doors do not need fire protection -
Process standard and construction key points of cast-in-place concrete main transformer foundation Plywood or other large formworks with a thickness of more than 15mm shall be used as the formwork, and the surface shall be flat, clean and smooth. If the surface finish of the formwork cannot meet the requirements, the 1mm thick PVC board can also be pasted. -
Standard Technical Bid for Equipment of China Southern Power Grid - 10kV Dry Type Transformer 1. This bidding technical document is applicable to the 10kV dry-type transformer purchased by the Power Grid Construction Project of China Southern Power Grid Co., Ltd. It puts forward the technical requirements for the functional design, structure, performance, installation and test of the equipment body and auxiliary equipment. -
Construction process standard and key points of concrete oil pool of main transformer Ordinary Portland cement should be used, with strength grade ≥ 42.5, and quality requirements in line with current GB 175. The coarse aggregate is crushed stone or pebble. When the concrete strength is ≥ C30, the mud content is ≤ 1%; When the concrete strength is less than C30, the mud content is ≤ 2%. The fine aggregate shall be medium sand. When the concrete strength is ≥ C30, the mud content is ≤ 3%; When the concrete is strong -
Matching table of transformer capacity and busbar, switch, model selection, standard calculation The data size can be adjusted according to the actual situation based on the data. The error is relatively small, and the one-time calculation configuration is relatively complete, -
DB11 140-2002 Power Transformer Energy Saving Monitoring Standard DB11 140-2002 Power Transformer Energy Saving Monitoring Standard is detailed and rich, which can be downloaded by netizens. -
Classification and rated parameters of transformers Classification and rated parameters of transformers -
Fault analysis and treatment of transformer Fault analysis and treatment of transformer -
Technology and application of dry-type transformer Technology and application of dry-type transformer -
Selection of transformer cooling mode Selection of transformer cooling mode -
Listen to identify transformer faults Listen to identify transformer faults -
Analysis of parallel operation of transformers In power plants and substations, transformers are important electrical equipment. In order to improve the reliability and flexibility of power supply, reduce energy loss, and ensure economic operation, two or more transformers are usually operated through the same bus connection between terminals with the same polarity at the primary side and the secondary side -
Daily maintenance knowledge of transformer This paper introduces the common transformers in detail, including the structure principle, operation maintenance and patrol inspection of transformers, -
Analysis on selection of dry-type transformer Abstract: This paper introduces the matters that electrical engineers should pay attention to when selecting dry-type transformers, mainly from the temperature control system of dry-type transformers, protection methods of dry-type transformers, overload capacity of dry-type transformers and other aspects. -
Brief analysis of transformer type and structure The transformers used for energy transmission and distribution are power transformers, such as step-up transformers and step-down transformers; There are also transformers for other purposes, such as rectifier transformers, voltage transformers, current transformers, and autotransformers. -
Fault analysis of distribution transformer When the transformer winding is burnt out due to interlayer or turn to turn short circuit, the transformer will give out the sound of "gurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgurgur. There are many factors that cause abnormal noise in transformers, and the fault location is also different. Only by accumulating experience continuously can accurate judgment be made. -
Bidding Document of a Transformer Equipment Bidding documents of a transformer equipment, including bidding instructions and technical requirements -
Comparison of SCB10 and SCB11 transformers This paper compares SCB10 and SCB11 in terms of energy conservation and investment cost in detail. From the comparison results, SCB11 does not save operating costs for users in the limited life cycle, but has higher comprehensive investment. -
General Analysis of Distribution Transformer Faults When the transformer is powered on or tested after shutdown, it is often found that the voltage is abnormal, such as two phases are high and one phase is low or the indication is zero; The three-phase voltage of some newly put into operation transformers is very high, causing some electrical equipment to burn out due to high voltage -
Installation inspection record of a transformer This document is the installation inspection record of a transformer. The contents are complete and can be downloaded -
Quality standards for transformer oil filtering, oil injection and hot oil circulation_ 1、 According to the data of the transformer manufacturer, the construction site shall be planned and equipped with high vacuum oil filter, flat oil filter, oil filter paper, vacuum pump, vacuum pump oil, mercury vacuum gauge, pointer vacuum gauge, pointer pressure gauge, oil tester, oil pipe, valve and oil storage tank. Reinforced PVC plastic hose can be used for oil pipeline and vacuum pipeline of transformer. To improve the quality of filter oil, store -
Quality standards for transformer oil filtering, oil injection and hot oil circulation In the process of on-site installation of transformers, preventing transformers from getting wet is a very important part. The process of transformer oil treatment is closely related to preventing transformers from getting wet. Now the installed transformers have larger capacity and higher voltage level. In order to ensure the installation quality of transformers and avoid getting wet, this enterprise standard is formulated. -
The latest version of transformer energy efficiency standard, "double carbon" project must pay attention to. The latest version of transformer energy efficiency standard, "double carbon" project must pay attention to. There are internal indicators of transformer efficiency requirements for each energy efficiency level. -
Standard Technical Bid for 10kV Oil immersed Transformer (excluding S (B) H15) This bidding technical document is applicable to the 10kV oil immersed transformer (excluding S (B) H15 type) purchased by China Southern Power Grid Corporation Limited in the power grid construction project. It puts forward the technical requirements for the functional design, structure, performance, installation and test of the equipment body and auxiliary equipment. -
Analysis of key technologies for standardization construction of 10kV pole mounted transformer (hoisting) Standardized installation of 10kV post mounted transformer (hoisting), including JP cabinet, transformer, fuse, arrester, etc -
How to strengthen the optimal configuration of distribution transformers The protection configuration of distribution transformer mainly includes circuit breaker, load switch or load switch plus fuse. Load switch can save investment, but can not break short circuit current; The technical performance of the circuit breaker is good, but the equipment investment is high and the use is complex; The protection configuration mode of combination of load switch and fuse can avoid the use of circuit breaker with complex operation and expensive price. This paper briefly describes the distribution transformer
