变电所主变压器规划台数的选择

Selection of The Number of Planning Main Transformer In The Substation

通过对变压器自身运行的经济性、电网供电可靠性、容载比、供电灵活性、投资及节约占地等方面进行分析，论述了变电所按配置了３台或４台主变压器规划的必要性和合理性。提出１１０ｋＶ及以上变电所宜按３台或４台主变压器进行规划和配置，但不宜超过４台。

The necessity and rationality of the plan that 3 or 4 main transformers are disposed in the substation are expounded and proved in this paper,on the basis of analysis about economical of the transformer operated,reliability for power supply of electrical network,capacity and load ralio,power supply flexibility,investment and saving on land etc.It is put forward that 3 or 4 main transformes may be planned and disposed in the substation for 110 kV or over ,but may be not over 4 transformers.