Regarding the terminology for substation and power distribution stations
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For the main substation, when it handles both transformation and power distribution, is it more appropriate to call it a main substation or a main substation for transformation and power distribution? I’m asking someone from another field – do we not need to be too strict about this? Should the location of the main power distribution station be determined based on the load center, or should it be chosen near the edge of the factory where it is convenient to connect the power lines? This post was last edited by xahoo on 2009-4-17 at 10:08.]
1 It should be called the main substation. 2 The load center should be taken into consideration
Quotation from the glossary of design specifications for substations of 10 kV and below: Substation: A facility that supplies electrical equipment with AC power at 10 kV and below, after the voltage has been adjusted using power transformers. Distribution station: A facility that contains only high-voltage distribution equipment used for switching and distributing electrical energy; there is no main transformer on the busbars. The location of a substation should be determined through technical and economic comparisons, in accordance with the following requirements: 1. It should be located near the load centers； II. Easy access for power inlet and outlet ； III. Near the power source side ； IV. Easy equipment transportation ； V. It should not be installed in areas with severe vibrations or high temperatures ； VI. It should not be installed in locations with a lot of dust or corrosive gases; when it is not possible to keep it at a distance, it should not be placed on the downwind side of the direction in which pollutants blow ； VII. It should not be located directly below toilets, bathrooms, or other areas where water often accumulates, nor should it be adjacent to such areas ； 8. It shall not be located directly above or below areas with explosion hazards, nor directly above or below areas with fire hazards. When adjacent to buildings in areas with explosion or fire hazards, it shall comply with the provisions of the current **standard, ‘Code for Design of Electrical Installations in Areas with Explosion and Fire Hazards’ ； IX. It should not be located in low-lying areas where water may accumulate. So, what the original poster mentioned – calling it a main substation – is more reasonable, but people can also understand it if it’s called a main power station. When choosing a location, it’s necessary to compare various factors. . .
Agree with dvb007’s view; the explanation is very detailed
Official statement: 1. It should be called: Total variation. (The total transformation capacity can include the total power distribution system; however, the total power distribution system does not include the total transformation capacity, as the main power distribution station does not have transformers.) 2. It should be located as close as possible to the load center, but in the chemical industry it is usually placed at the edge of the factory site. As for exactly which side it should be placed on, a distance of no more than 2000 meters from the actual load center should be sufficient. . Reference can be made to HG/T 20664/1999. This post was last edited by ZJYSSF on 2009-4-17 at 15:17.]
It is generally called the main transformer, as the main transformer usually does not supply power directly to the load. Commonly, the main substation is located near the factory, while it is less common to find it at the load center.
Large ones are called substation stations, medium-sized ones are called substation buildings, and small ones are called distribution rooms.