This article takes water -supply system of one school as an example, researches the application of PLC and frequency conversion speed adjustment technology in the electrical control system.
以某学校供水系统为例，研究了PLC及变频调速技术在电气控制中的应用。
It adopts speed-adjusted system through frequency conversion, which can realize non-pole speed adjustment.
采用变频调速系统，可实现不停机无级调速。
It adopts speed-adjusted system through frequency conversion, which can realize non-pole speed adjustment.
采用变频调速系统，可实现不停机无级调速。
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