Three-phase unbalance and low voltage treatment device, system and compensation circuit switching method
A technology of balance compensation and low voltage, which is applied in the field of three-phase unbalance and low voltage control devices, and can solve the problems of neutral wire loss, line loss increase, switch burnout, etc.
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Embodiment 2
[0140] The difference between this embodiment and the above-mentioned embodiment 1 of the unbalanced compensation capacitor switching method is that in embodiment 1, there are two compensation lines between phases, and each compensation line is connected in series with a thyristor and a capacitor. When inputting, the two capacitors need to be controlled successively. In this embodiment, there is only one compensation line between phases. This line is connected with a thyristor and a capacitor in series. When inputting the capacitor, only one time is required. Just put in control. Among them, the connection relationship between the capacitor and the three-phase line is as follows: Figure 5 As shown, the connection relationship between the controller and the capacitor is as follows Figure 6 shown.
[0141] The method of unbalance compensation capacitor switching is as follows:
[0142] The capacitors corresponding to the A3, B3, and C3 output terminals on the three-phase un...
Embodiment 1
[0191] The three-phase unbalance and low voltage control system in this embodiment has been described in detail in Embodiment 1 of the unbalance compensation capacitor switching method, and will not be repeated here.
[0192] Three-phase unbalance and low voltage control system embodiment 2
[0193] The embodiment of the three-phase unbalance and low voltage control system in this embodiment has been described in detail in Embodiment 2 of the unbalance compensation capacitor switching method, and will not be repeated here.
[0194] Embodiment 1 of three-phase unbalance and low voltage control device
[0195] The embodiment of the device is the same as the first embodiment of the three-phase unbalance and low voltage control system, and will not be repeated here.
[0196] Embodiment 2 of three-phase unbalance and low voltage control device
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