Firstly, based on the selecting of trigger methods' and ascertaining of the phase shift range of ac voltage-regulate soft starter, reliability of each trigger method is researched.

首先，从触发方案选择和移相范围的确定两方面出发，研究了各触发方案的可靠性。

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Firstly, based on the selecting of trigger methods' and ascertaining of the phase shift range of ac voltage-regulate soft starter, reliability of each trigger method is researched.

首先，从触发方案选择和移相范围的确定两方面出发，研究了各触发方案的可靠性。

youdao