Detailed explanation of key technologies for energy saving and consumption reduction of transformers and analysis of measures
2022-10-21
Due to the heavy proportion of single-phase power load in distribution transformers and their power supply and distribution systems, and with the widespread use of various energy-saving electrical equipment, energy-saving lamps, etc., distribution transformers, especially public distribution transformers, have large three-phase load imbalance, resulting in large losses, which indicates that the load loss caused by three-phase imbalance is very large, and it is a key point of the research on energy-saving and economic operation of transformers. Through reasonable phase to phase load optimization and adjustment, the three-phase load imbalance of the distribution transformer is reduced, so that the three-phase load of the distribution transformer is almost balanced. In this way, a better phase to phase balance relationship can be obtained, the active power loss and reactive power consumption during the operation of the distribution transformer are reduced, and the efficiency of power distribution, dispatching and conversion is improved.
It can be seen from the operating conditions of the distribution transformer and the load curve between the distribution transformer and the load that the reactive load of the distribution transformer is mainly concentrated in the light load or no-load operating conditions. At this time, excitation reactive power will be generated, and the reactive capacity consumed is about 10%~15% of the rated capacity of the distribution transformer. Therefore, centralized reactive power compensation measures can be taken. By reasonably selecting SVC, SVG, TSC and other reactive power compensation devices, the mortgaged reactive power compensation capacitor can be connected to the bus side of the distribution transformer through the load switch. When the system is operating under light load or no-load conditions, the capacitor can be switched on reasonably to conduct reactive power compensation in real time, improve the power factor of the 10kV distribution system, and effectively reduce the operating loss of the distribution transformer, At the same time, the energy-saving economic effect of improving the terminal low-voltage and improving the voltage quality is achieved.
To sum up, the reasonable adoption of energy-saving measures such as optimizing energy-saving distribution transformers, joint economic dispatching operation of multiple distribution transformers, optimizing three-phase load adjustment, and appropriate reactive power compensation in the distribution network can reduce the operating loss of distribution transformers and achieve the purpose of energy-saving and consumption reducing economic regulation and operation.
Qingdao Hengfengyou Electric Group, is an electrical enterprise with transmission and distribution industry as its main business, integrating product research and development, manufacturing and trade. Designated suppliers for the world's top 500 enterprises.Its main products include oil-immersed transformer,dry-type transformer,electric furnace transformer,mining transformer ,rectifier transformer .It has been successfully sold to more than 50 countries around the world. Product certification is complete. Hengfengyou Electric will provide you with the best electrical product solutions. 【https://www.hengfengyou-electric.com ； sales@hengfengyou-electric.com ； WhatsApp：+86158 5325 2696（Jack） +86158 5326 5269（Alisa） 】
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