Three unbalanced phase loads varies randomly to lead to three phases unbalancein 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。
2
Three unbalanced phase loads varies randomly to lead to three phases unbalancein 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。
3
It has been proved in practice that the unbalance degree of the three-phase side current of this transformer can meet the requirements of the related regulations.