Urgent help needed from all experts in electrical engineering!
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When designing the electrical wiring in the laboratory, we assumed that the power consumption of the experimental equipment would be 2 KW; therefore, in addition to installing a circuit breaker at the laboratory bus, we only provided a regular socket at the connection point of the equipment. It was not until the equipment arrived that we discovered its actual power consumption to be 20 KW. Is it necessary to install a separate circuit breaker for this equipment? After all, the entire setup is worth 2 million yuan, and all the wiring had already been installed along with the interior decoration. What should we do now? Do we need to make major changes to the wiring? ? ?
It’s hard to say; I suggest the original poster take the following steps: 1. Find out the rated current of your experimental equipment. It’s not clear what type of load this equipment represents, and if it’s inductive or capacitive in nature, impulse current also needs to be taken into consideration. 2. The current-carrying capacity of the current wiring. 3. For circuit breakers with a load capacity difference of 10 times, I think it’s necessary to replace them. Then compare the values of 1 and 2, and finally draw a conclusion.
I agree with the view from the second floor. Additionally, I think you should also check whether the current-carrying capacity of the incoming cables in the distribution box is sufficient to meet the load requirements after adding the 20KW of equipment – after all, 20KW is a significant amount for building electrical systems, and previous distribution boxes likely did not have such a large capacity margin.
Based on the approach you have taken for the circuit design, the existing circuit certainly cannot meet the requirements of the testing equipment. If making major changes proves too costly, I suggest running a separate circuit to supply power specifically to the testing equipment; this will result in much better reliability and cost-effectiveness
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