6.主要功能

6.1計量功能(neng)

6.1.1 計(ji)量有(you)功(gong)和無功(gong)電能并存儲其數(shu)據。

6.1.2 電能(neng)按正、反向有功電量(liang)和無(wu)功總(zong)電能(neng)分別計算、顯示、轉存。

6.1.3 正向(xiang)、反向(xiang)有功和無功用電(dian)，反復斷電(dian)、上電(dian)操作(zuo)都(dou)不影(ying)響(xiang)電(dian)能表的準確性；

6.1.4 指(zhi)示燈

當有電量脈(mo)沖信號時(shi)，點亮(liang)脈(mo)沖指示燈（有功和(he)無功各有一只指示燈）約80±20ms。

1.概述

    DTS(X)6111、DSS(X)6111型(xing)三(san)相電(dian)(dian)子式有功(gong)(gong)(gong)(gong)(gong)無功(gong)(gong)(gong)(gong)(gong)組合(he)電(dian)(dian)能(neng)(neng)表(biao)（以(yi)下簡稱電(dian)(dian)能(neng)(neng)表(biao)），是為(wei)了適應電(dian)(dian)網改造(zao)(zao)設(she)計(ji)開發(fa)的有功(gong)(gong)(gong)(gong)(gong)、無功(gong)(gong)(gong)(gong)(gong)組合(he)式電(dian)(dian)能(neng)(neng)表(biao)。它具(ju)有較高(gao)的準確(que)度和可行(xing)性(xing)。本(ben)產品制造(zao)(zao)標準符合(he)GB/T17215.321-2008《1級(ji)和2級(ji)靜(jing)止式交流有功(gong)(gong)(gong)(gong)(gong)電(dian)(dian)能(neng)(neng)表(biao)》、GB/T17215.323-2008、DL/T614-1997《多功(gong)(gong)(gong)(gong)(gong)能(neng)(neng)電(dian)(dian)能(neng)(neng)表(biao)》、DL/T645-1997《多功(gong)(gong)(gong)(gong)(gong)能(neng)(neng)電(dian)(dian)能(neng)(neng)表(biao)通信(xin)規(gui)約》等電(dian)(dian)力行(xing)業標準對(dui)(dui)三(san)相靜(jing)止式電(dian)(dian)能(neng)(neng)表(biao)全部技術要求，是對(dui)(dui)需要進行(xing)無功(gong)(gong)(gong)(gong)(gong)電(dian)(dian)量(liang)考核的企業、變電(dian)(dian)站或電(dian)(dian)廠理想的選擇(ze)，亦適合(he)輸配電(dian)(dian)或配網自動化用表(biao)。本(ben)產品可供計(ji)量(liang)參比(bi)頻率為(wei)50Hz電(dian)(dian)網中的三(san)相交流有功(gong)(gong)(gong)(gong)(gong)和無功(gong)(gong)(gong)(gong)(gong)電(dian)(dian)能(neng)(neng)，并能(neng)(neng)進行(xing)正(zheng)、反(fan)向電(dian)(dian)能(neng)(neng)計(ji)量(liang)和紅外及(ji)RS485通訊功(gong)(gong)(gong)(gong)(gong)能(neng)(neng)。其特點是精度高(gao)、可靠性(xing)好(hao)、寬(kuan)負荷、低功(gong)(gong)(gong)(gong)(gong)耗(hao)、誤差(cha)曲線平直、抗(kang)干擾能(neng)(neng)力強(qiang)。

2、工作原理

2、1 電能(neng)計量單元工(gong)作原理

電(dian)能計量單元工(gong)作(zuo)原(yuan)理

   被計量的(de)(de)每一(yi)相(xiang)電(dian)(dian)能(neng)的(de)(de)電(dian)(dian)流通(tong)過(guo)互感器采樣(yang)得到電(dian)(dian)壓信(xin)號(hao)(hao)(hao),再通(tong)過(guo)ATT7026A芯片(pian)內(nei)部的(de)(de)差(cha)放(fang)電(dian)(dian)路將(jiang)電(dian)(dian)壓信(xin)號(hao)(hao)(hao)放(fang)大(da),放(fang)大(da)的(de)(de)信(xin)號(hao)(hao)(hao)經過(guo)A/D轉換成與其成比(bi)例(li)的(de)(de)數(shu)字信(xin)號(hao)(hao)(hao),再經過(guo)高通(tong)濾波去除(chu)信(xin)號(hao)(hao)(hao)中的(de)(de)直流分(fen)量后進入(ru)(ru)數(shu)字乘法器的(de)(de)一(yi)個輸入(ru)(ru)端。被計量的(de)(de)電(dian)(dian)能(neng)電(dian)(dian)壓信(xin)號(hao)(hao)(hao)經過(guo)電(dian)(dian)阻分(fen)壓取樣(yang)，通(tong)過(guo)

ATT7026A芯(xin)片內(nei)部的差(cha)放電路(lu)將信(xin)號(hao)放大，再經(jing)過A/D轉換(huan)成與其成比例的數(shu)字信(xin)號(hao)，進入數(shu)字乘法(fa)器(qi)的另一個輸入端與電流通(tong)道的信(xin)號(hao)進行乘法(fa)運(yun)

算，完成被(bei)計(ji)量電(dian)能的瞬(shun)時(shi)功率(lv)測量。每相輸(shu)出(chu)瞬(shun)時(shi)功率(lv)通過(guo)數字低通濾波器(qi),進行(xing)積分(fen)處理，然后進行(xing)絕(jue)對值累加(jia)后進入(ru)"數字/頻率(lv)"轉換器(qi)，經(jing)過(guo)分(fen)頻電(dian)路輸(shu)出(chu)的脈沖經(jing)過(guo)隔離(li)后送入(ru)CPU單元進行(xing)處理，分(fen)別記錄(lu)有功和無(wu)功的總電(dian)量及有功反向電(dian)量。

3.2 CPU單元工作(zuo)原理

電能(neng)計量單元輸(shu)出的(de)高頻(pin)脈沖通過(guo)兩個光電耦合(he)器，一路(lu)作為無源脈沖輸(shu)出用(yong)于出廠檢驗(yan)和用(yong)戶對(dui)電能(neng)表進行校驗(yan)；另一路(lu)送到(dao)CPU芯片進行數(shu)據處理。CPU在系統(tong)（電能(neng)表程序）指(zhi)令下，根據數(shu)據存儲器中的(de)記憶及儀表常(chang)數(shu)計算出有功和無功的(de)電量值，再轉(zhuan)存到(dao)內部存儲器中，存儲的(de)數(shu)據既(ji)可以通過(guo)LCD顯示， 又可以通過(guo)紅外和RS485兩種通迅(xun)方(fang)式(shi)輸(shu)出。

3.技術指標

 ·參比頻率：50Hz；

   ·參比電壓：三相(xiang)四線(xian) 3X220/380V、3X57.7/100V;

 三相三線 3X380V、3X100V；

   ·電流規格：經互感器接入式：3X1.5(6)A、3X(6)A;直接(jie)接(jie)入式：3X5(20)A、3X10(40)A、3X15(60)A、3X20(80)A、3X30(100)A;

   ·儀表(biao)常數(shu)：100imp/kWh-6400imp/kWh（以(yi)銘牌(pai)標注為準）；

    ·準確度等(deng)級(ji)：有功1級(ji)、無(wu)功2級(ji)；

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·起動：在參比電(dian)(dian)壓、參比頻率及功率因數為1.0的條(tiao)件下,有功0.004Ιb（1級），無功0.005Ιn（2級）電(dian)(dian)能(neng)(neng)表能(neng)(neng)起動并開始(shi)連續計量(liang)電(dian)(dian)能(neng)(neng)。     

    ·潛動：具(ju)有邏(luo)輯防潛動功能(neng),電(dian)壓(ya)回(hui)路加參比(bi)電(dian)壓(ya)115%，電(dian)流回(hui)路斷開的情況下(xia)，電(dian)能(neng)表不產生多余一個脈沖輸(shu)出(chu)。

·氣候條件(jian)

·電氣參數

4.尺寸及重量

4.1外(wai)形及安裝尺寸圖(tu)

4.2外形尺寸(cun)：270X170X79mm；安(an)裝尺寸(cun)：240X150mm

4.3重量(liang)： 約2kg

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