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      1. BS-7B型時間繼電器

        更新:2013/9/9 13:31:28      點擊:
        • 產(chǎn)品品牌   
        • 產(chǎn)品型號   BS-7B
        • 產(chǎn)品描述

          BS-7B型時間繼電器,是上海人民電氣有限公司 http://www.mauscontracting.com 為您提供的關于BS-7B型時間繼電器型號,BS-7B型時間繼電器價格,有關BS-7B型時間繼電器的相關資...

        產(chǎn)品介紹

        額定電壓(DC) 功率消耗(W)
        220V 不大于6
        110V 不大于3
        48V 不大于1.5
        .觸點斷開容量
        直流有感(τ=5ms)回路,U≤250V,I≤0.5A,為30W;在交流(cosФ=0.4)回路;U≤250V,I≤1A,為100VA。
        .介質(zhì)強度
        繼電器各導電電路連在一起與外露的非帶電金屬部分及外殼之間,能承受2kV(有效值),50Hz的交流電壓歷時1min試驗,耐無絕緣擊穿或閃絡現(xiàn)象。
        .電壽命5×103次,機械壽命104次。
        .重量
        繼電器的重量約為1kg。
        調(diào)試方法
        a.將銘牌整定電位器R9旋至最小位置。繼電器施加額定電壓,其中①端為“+”,②端為“-”,繼電器延時動作,發(fā)光二極管亮,并保持此狀態(tài)直到失電,繼電器返回;
        b.銘牌整定值1~5分檔和倍乘。如延時整定范圍為8min~40min,1點的整定值就是40/5=8min,2點是8×2=16min …… ;
        c. 繼電器的延時一致性和平均誤差可按3條5款及3條6款之規(guī)定進行測量。

        觸點形式:一轉(zhuǎn)換。
        .動作值及返回值
        對于額定電壓為220V,110V的繼電器,其動作值不大于額定值的70%;對于額定電壓為48V的繼電器,其動作值為不大于90%額定值。
        繼電器返回值不小于額定值的5%。
        .延時一致性
        在基準條件下,施加額定電壓,繼電器的延時一致性不大于1%。
        其含義是指在任一整定點上五次測得的實際動作值中最大值與最小值之差與五次算術平均值
        之比。
        .延時整定值的平均誤差
        在基準條件下,施加額定電壓,繼電器的延時整定值的平均誤差不大于±5%。
        其含義是指在同一整定點上五次測得的算術平均值和整定值之差與整定值之比。
        .溫度影響
        溫度在標稱范圍內(nèi)變化時,繼電器延時整定值的變差不應超過4款和5款規(guī)定值的兩倍。
        .電壓影響
        輸入電壓在工作范圍內(nèi)變化時,繼電器延時整定值的變差不超過4款和5款規(guī)定值的兩倍。
        .功率消耗在額定電壓下,繼電器的功率消耗符合表2的規(guī)定值。

        BS-7B時間繼電器(以下簡稱繼電器)用于各種控制和保護電路中,起自動延時轉(zhuǎn)接作用

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