PSR4/5A-275一拖二供水系統(tǒng)方式工作原理
一拖二供水模式主要由一臺主變頻電機M1和一臺附屬小泵M2組成,PSR4/5A-275在用水高峰期,利用變頻器本身自帶的PID功能,經(jīng)主變頻電機M1進行恒壓供水,當壓力不夠時通過KA2繼電器動作啟動附屬小泵M2以達到用水高峰期用戶的需求。當用水低峰期時,依然只能變頻啟動主泵M1進行變頻供水,PSR4/5A-275比以往的電機星三角啟停控制有了較大的節(jié)能空間,但依然沒有真正達到只變頻啟動附屬小泵更加節(jié)能的目的。
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PSR4/5A-275
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