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40分钟视频从尿眼喷水

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            自動轉換開關定義

            2013/12/21 17:53:16      點擊:
            編輯
            自動轉換開關電器,即ATSE(Automatic Transfer Switching Equipment)。主要適用于額定電壓交流不超過1000V 或直流不超過1500V 的緊急供電系統,在轉換電源期間中斷向負載供電。
            1.ATSE的定義
            1.1 轉換開關電器(轉換開關)Transfer Switching Device (Transfer Switch)
            將一個或幾個負載電路從一個電源轉換至另一個電源的電器。
            1.2 自動轉換開關電器(ATSE) Automatic Transfer Switching Equipment (ATSE)
            由一個(或幾個)轉換開關電器和其它必需的電器組成,用于監測電源電路、并將一個或幾個負載電路從一個電源自動轉換至另一個電源的電器。電氣行業中簡稱為“雙電源自動轉換開關”或“雙電源開關”。
            2.ATSE的分類
            ATSE 可分為兩個級別:PC 級和CB 級。
            PC級ATSE :只完成雙電源自動轉換的功能,不具備短路電流分斷(僅能接通、承載)的功能;
            CB級ATSE :既完成雙電源自動轉換的功能,又具有短路電流保護(能接通并分斷)的功能。
            3.ATSE的使用類別
            3.1 交流:
            AC-31A/B 電阻負載;
            AC-33A/B 電動機負載或含電動機、電阻負載和30%白熾燈負載的混合負載;
            AC-35A/B 放電燈負載;
            AC-36A/B 白熾燈負載。
            3.2 直流:
            DC-31A/B 電阻負載;
            DC-33A/B 電動機負載或含電動機的混合負載;
            DC-36A/B 白熾燈負載。
            注:A為頻繁操作,B為不頻繁操作。
            40分钟视频从尿眼喷水
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