Power supply and distribution system design
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Dear experts: Hello everyone! I have a question: Which standards are used as the basis for designing industrial electrical power supply and distribution system diagrams? For example: 1. How can two sections of a single bus be kept in balance? 2. How should the loads on Bus Section 1 and Bus Section 2 be arranged? 3. How to select the specifications for busbars, as well as components such as circuit breakers and contactors.
For segmented busbars, to ensure load balance, it is necessary to understand the nature of the loads and then distribute them evenly; absolute balance is not possible, so a margin must always be reserved. As the seasons change, different loads will increase or decrease. One allocation method is the segmentation method for loads of the same type; for example, in the case of chiller units, Unit 1 is connected to one bus bar, while Unit 2 is connected to another bus bar. By distributing the water pumps and heating systems in the same way, it is possible to avoid significant imbalances in load.
Refer to GB50052-2009 and GB50054-2011; for the specifications of busbars, circuit breakers, and contactors, consult the manufacturer’s product manual.