SPC Three phase unbalanced intellegent regulating device
Shaanxi Power Supply Company
Shaanxi coal electricity transformation
In order to control the fog and haze, a Shaanxi power supply company started the project of "coal to electricity", which requires the residents to change from coal burning heating to electric furnace heating, especially in the urban area. The coal to electricity equipment is a single-phase load, the current is very large, which will cause three-phase unbalance and voltage drop, so it needs to control.
When the three-phase current of the power grid is balanced, the N-line current is basically zero. When the load current is unbalanced due to three-phase, the N-line current is between 50-150A. The N-line current of the power grid side is basically reduced to zero after compensation, which has obvious effect.
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