What is the power of the electrical control cabinet? Different control cabinets carry different numbers of components, depending on the load drive of the electrical control cabinet and the number of specific motor contactors. So, how do we calculate the power of the electrical control cabinet? The details are as follows:

The first is the electrical control cabinet, which is usually determined according to the total power of each branch of the control cabinet. Considering addition, of course not all circuits are simple coefficients. Of course, the inductive loads involved are fans, pumps, welders, etc. Reactive power and reactive current should be calculated.

1. The electrical control cabinet is a control device that does not need to consume a lot of electric energy. Inside it is an embedded CPU, and the current is turned on and off no different. However, the functions of the devices he controls vary. For example, 1kW and 10kW motors must consume different amounts of power.

2. The components in the electrical control cabinet are combined with the electrical energy of each module, relay and other loads, leaving a certain margin, that is, the power of the electrical control cabinet. The contact number between the drive and the motor according to the load of the electrical control box. The electrical control cabinet generally uses a single-phase power supply, so the power supply of the PLC control cabinet is generally about 3KW. Installation capacity usually takes into account the number of terminals. The number of PLC control cabinet terminals is 6 ~ 800, and the capacity range is 2U ~ 42U.

3. The power supply of the electrical control cabinet is divided into input power supply and output power supply. Input power = 1.732 * input current * input voltage * power factor * box itself cannot be used, output power = 1.732 * output current * power factor. For example, the D of the s7-200 AC power supply has a CPU 226:120VAC, the power supply current is 80mA, the power supply current is 240mA, the power supply current is 40mA, and the power consumption of the CPU module is about 10W. CPU224. CPU222. The power consumption of cpu221 is less than 226.