ทำไมจึงต้องมีหม้อแปลงแยกในอัพออนไลน์?
Why isolation transformer is must in online ups?
1.In the UPS power supply, if the third harmonic and interference signal of the power grid is more serious, the use of isolation transformer can remove the third harmonic and reduce the interference signal.
2.The use of isolation transformer can produce new neutral line and avoid abnormal operation of equipment due to poor neutral line of power grid.
3.The isolation transformer can prevent the current distortion of the nonlinear load from affecting the normal operation of the AC power supply and polluting the power grid, and plays a role in purifying the power grid.
4.Sampling at the input of the isolation transformer, the distortion of the nonlinear load current does not affect the accuracy of sampling, and plays a control signal that can reflect the actual situation. If the load is not balanced, it does not affect the normal operation of the stabilized power supply.
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