Three unbalanced phase loads varies randomly to lead to three phases unbalance in low voltage distribution system, which brings a series of problems on power grid.
在电网中，三相负荷随机变化，产生三相不平衡，从而给电网带来了一系列的问题。
Three unbalanced phase loads varies randomly to lead to three phases unbalance in middle and low voltage distribution system, whi ch brings a series of problems on power grid.
在中低压配电网中，三相负荷随机变化，产生三相不平衡，从而给电网带来了一系列的问题。
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