How to Calculate The Current Load

Why do we need to calculate the current load, what are the calculation methods, and what is the process? We will show in detail in this article.

The purpose and content of the load calculation. Whether the calculation of the load can meet the correct and reasonable standards will directly affect whether the choice of electrical appliances and wires and cables is economical and reasonable. If the calculation load is determined to be relatively large, then the choice of electrical guide wires will be relatively large, which will waste investment. If the calculated load is relatively small, it will cause premature aging of electrical appliances and wires and cables, and even burn out, resulting in relatively heavy losses. Therefore, it can be considered that the computational load is very important. The calculated load mainly refers to an imaginary load that is close to the actual electricity load.

The method of load calculation. At present, in the process of load calculation, the methods often used include the coefficient method and the binomial method, as well as the utilization coefficient method. Generally, it is necessary to use the coefficient method to calculate the load of the electrical equipment group. Electrical equipment with the same properties can be grouped together. Find out the relevant demand coefficients according to the specific categories of the electrical equipment in this group. Then, according to the specific formula of this group of electrical equipment, the average load of this group of electrical equipment is calculated. This design mainly uses the coefficient method to calculate the electrical load.

The process of load calculation. The use of electrical equipment group for load calculation mainly refers to the maximum load of the electrical equipment group taking half an hour in the power supply system, and then measuring the equipment capacity of the electrical equipment group. Then measure the sum of the rated capacities of all devices in the electrical equipment group. The three identified electrical equipment groups have basic formulas when calculating the active power load. In fact, the coefficients in the basic formulas are not only related to the working nature of the electrical equipment group and the number of equipment, but also the efficiency and wiring of the equipment. The loss is directly related. Moreover, it is directly related to various factors such as the specific skills of the operators and the production organization. Therefore, it is necessary to analyze as much as possible through actual measurement, and make sure that it can be as close as possible to the actual situation. When calculating the load on a trunk line with multiple sets of different electrical equipment, or on the low-voltage busbar of a workshop transformer substation, it is necessary to consider the largest combination of electrical equipment in each group, which will not appear at the same time. Therefore, in the process of calculating the load for multiple groups of different electrical equipment, it should always be able to combine specific conditions. The active load and reactive load should be calculated into the same coefficient simultaneously and separately.

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