Number of MV/LV transformers: Difference between revisions
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{{Menu_MV_and_LV_architecture_selection_guide}} | {{Menu_MV_and_LV_architecture_selection_guide}} | ||
For every MV/LV substation, the definition of the number of MV/LV transformers takes into account the following criteria: | |||
* Total power supplied by the substation | |||
* Standardization of the rated power to reduce the number of spare transformers | |||
* | * Limit of the rated power. It is recommended to set this limit at 1250 kVA in order to facilitate the handling and the replacement of the transformers | ||
* | * Scalability of the installation | ||
* | * Need to separate the loads having a high level of sensitivity to the electrical perturbations | ||
* Need to dedicate a transformer to the load generating a high level of perturbation such as voltage dips, harmonics, flicker | |||
* Need for partial or total redundancy. When required, two transformers each sized for the full load and equipped with an automatic change-over are installed | |||
* Loads requiring a dedicated neutral system. IT for example to ensure the continuity of operation in case of phase to earth fault | |||
[[ru:Число трансформаторов высокого/низкого напряжения]] | [[ru:Число трансформаторов высокого/низкого напряжения]] | ||
[[zh:中压/低压变压器的数量]] | [[zh:中压/低压变压器的数量]] | ||
Revision as of 03:33, 8 December 2014
For every MV/LV substation, the definition of the number of MV/LV transformers takes into account the following criteria:
- Total power supplied by the substation
- Standardization of the rated power to reduce the number of spare transformers
- Limit of the rated power. It is recommended to set this limit at 1250 kVA in order to facilitate the handling and the replacement of the transformers
- Scalability of the installation
- Need to separate the loads having a high level of sensitivity to the electrical perturbations
- Need to dedicate a transformer to the load generating a high level of perturbation such as voltage dips, harmonics, flicker
- Need for partial or total redundancy. When required, two transformers each sized for the full load and equipped with an automatic change-over are installed
- Loads requiring a dedicated neutral system. IT for example to ensure the continuity of operation in case of phase to earth fault
ru:Число трансформаторов высокого/низкого напряжения zh:中压/低压变压器的数量
