F51S28A

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F51S28A is a three-phase unbalanced load automatic compensation device, its main application field is used to detect and stabilize the distribution network system which with the unbalanced load of three-phase. It is useful in modern industrial production in many manufacturing industries such as wire and cable, electronics and electrical equipment, textiles, etc. Its working principle is based on electricity wide-band energy conversion. It divides the power frequency AC into high frequency AC or pulse DC, and then amplify and stabilize the output through the principle of high-frequency rectification, which can make the electric network have better energy and power support.

The structure of F51S28A is composed of a number of system circuitry. First, it has an asymmetry detection circuit, including three current transformers are connected to the main circuit, the current transformers can detect the asymmetry of the three current magnitude, so that the device can be set up working as the different load changes. There is a delay circuit installed in the device, which can weaken the sensitivity of the device to the change of current in certain period to ensure the device can work in open loop control. A high frequency rectification circuit is also built in the device, which can offer high frequency AC to drive motor, and then the motor will change the phase angle of the load current, so as to adjust the amount of load and get experimental and theoretical ideas of load compensation. On the other hand, it also has a programmable logic control circuit, with digital and analog signal coordinated, which can provide effective protector state for this device.

F51S28A component devices are the main governing part of its system. Typically, these are IGBTs, fuses, capacitors, three-phase current transformers, and signal module. All these components are necessary to the device in order to succeed in the compensation of unbalance loads.

In short, F51S28A automatic compensation device is a bidirectional power device which helps to detect and control the phases of the unbalanced three-phase current, making the excitation of load current industry equipment a regulated process. It can be applied in many industrial production fields because of its advantages such as wide working temperature range, small surge current, low cost, and miniaturization.

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