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    DZK-900快速中間繼電器

    更新:2013/9/9 13:57:40      點(diǎn)擊:
    • 產(chǎn)品品牌   
    • 產(chǎn)品型號(hào)   DZK-900
    • 產(chǎn)品描述

      DZK-900快速中間繼電器,是上海人民電氣有限公司 http://www.hqbet5695.com 為您提供的關(guān)于DZK-900快速中間繼電器型號(hào),DZK-900快速中間繼電器價(jià)格,有關(guān)DZK-90...

    產(chǎn)品介紹

    用途

    DZK-900系列快速中間繼電器(以下簡(jiǎn)稱產(chǎn)品)用于電力系統(tǒng)二次回路繼電保護(hù)和自動(dòng)控制線路中,用作切換電路和增加保護(hù)和控制電路的觸點(diǎn)數(shù)量和觸點(diǎn)容量及用于出口跳閘電路。

    型號(hào)說明

     

    注:8副動(dòng)合觸點(diǎn)形式只有8ms規(guī)格;具體型號(hào)與內(nèi)部接線見圖1。

    結(jié)構(gòu)原理及特點(diǎn)

    為了提高觸點(diǎn)工作的可靠性,采用雙斷點(diǎn)觸點(diǎn)的結(jié)構(gòu)。

    產(chǎn)品的結(jié)構(gòu)代號(hào)為A11K、A11P、A11H、A11Q,詳見附圖。

    主要技術(shù)數(shù)據(jù)

    4.1 額定工作電壓:DC220、110、48、24V

    4.2 額定工作電流:DC0.25、0.5、1、2、48A。

    4.3 額定保持電流:DC0.25、0.5、1、2、4、8A。

    4.4 額定保持電壓:DC220、110、48、24V。

    4.5 動(dòng)作值:在周圍環(huán)境溫度為20±2°的條件下,電壓型的動(dòng)作電壓為50%70%額定電壓;電流型的動(dòng)作電流不大于80%額定電流。

    4.6 返回值:周圍環(huán)境溫度為20±2°的條件下,返回值不小于5%額定值。

    4.7 保持值:在周圍環(huán)境溫度為20±2°的條件下

    a. 具有電流保持繞組的產(chǎn)品,其自保持電流不大于80%額定保持電流值;

    b. 具有電壓保持繞組的產(chǎn)品,其保持電壓不大于70%額定保持電壓值。

    4.8 動(dòng)作時(shí)間:在周圍環(huán)境溫度為20±2°的條件下,工作繞組施加激勵(lì)量為額定值,DZK-900/8動(dòng)作時(shí)間不大于8ms,DZK-900/4動(dòng)作時(shí)間不大于4ms(四對(duì)觸點(diǎn)以上增加0.5ms)。DZK-900/4電流型產(chǎn)品動(dòng)作時(shí)間不大于5ms(四對(duì)觸點(diǎn)以上增加0.5ms)。

    4.9 返回時(shí)間:在周圍環(huán)境溫度為20±2℃的條件下,DZK-900/8返回時(shí)間不大于5msDZK-900/4返回時(shí)間不大于2ms。

    4.10 當(dāng)周圍環(huán)境溫度在-25+40°范圍內(nèi)變化時(shí),產(chǎn)品的特性同周圍環(huán)境溫度20±2°條件下的特性相比,其變化不大于

    a. 動(dòng)作電壓±15%;

    b. 返回電壓仍滿足第4.6條的要求;

    c. 動(dòng)作時(shí)間仍滿足第4.8條的要求;

    d. 返回時(shí)間仍滿足第4.9條的要求。

    4.11 功率消耗

    a. 電壓線圈在額定電壓(或額定保持電壓)下, 功率消耗不大于10W(包括外附電阻);

    b. 電流線圈在額定電流(或額定保持電流)下,功率消耗不大于2.5W。

    使用和維護(hù)[

    5.1 產(chǎn)品應(yīng)安裝在垂直平面上,接觸系統(tǒng)應(yīng)處于水平位置。

    5.2 電壓線圈應(yīng)按其額定電壓串接相應(yīng)的外附電阻如表1。

     

    1

    型  號(hào)

    額客電壓(V)

    外附電阻

    DZK-900/8

    DZK-900/4

    220

    RXYC-20-5.1kΩ

    110

    RXYC-20-1.3kΩ

    48

    RXYC-20-240Ω

    24

    RXYC-20-62Ω

     

    5.3 產(chǎn)品在使用過程中,觸點(diǎn)表面會(huì)出現(xiàn)氧化膜或輕微的燒損而影響觸點(diǎn)工作的可靠性,應(yīng)對(duì)觸點(diǎn)進(jìn)行清理,清理時(shí)用鋒利的刀片刮去觸點(diǎn)表面的氧化物,然后再用綢布沾上少量的汽油擦試,不允許用砂紙或其他磨料清理觸點(diǎn)。如燒損嚴(yán)重應(yīng)及時(shí)用備件更換之。

    7.訂貨須知
    訂貨時(shí)應(yīng)指明:
    a.     繼電器的名稱和型號(hào);
    b.     安裝方式:凸出式后接線或凸出式前接線;
    c.    額定電壓值;
    d.    訂貨數(shù)量;
    e.    交貨地址。

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