6.主要功能(neng)

6.1計量功能

6.1.1 計量(liang)有功和無功電能并存儲(chu)其數據。

6.1.2 電能按正、反向有功電量和無功總電能分別計算、顯示、轉存。

 6.1.3 正向、反向有功(gong)和(he)無功(gong)用電(dian)(dian)，反復斷電(dian)(dian)、上電(dian)(dian)操作都(dou)不影(ying)響電(dian)(dian)能表的準確性；

6.1.4 指示燈

當(dang)有(you)電量脈沖信號時，點亮(liang)脈沖指示燈（有(you)功和無功各有(you)一只指示燈）約80±20ms。

1.概述

    DTS(X)6111、DSS(X)6111型三相電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子式(shi)有(you)功(gong)無功(gong)組(zu)合(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)表(biao)(biao)(biao)（以下簡(jian)稱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)表(biao)(biao)(biao)），是(shi)為了適應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)網(wang)改造設計開發的(de)(de)(de)有(you)功(gong)、無功(gong)組(zu)合(he)(he)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)表(biao)(biao)(biao)。它具(ju)有(you)較高(gao)的(de)(de)(de)準(zhun)確(que)度和可(ke)行(xing)性。產品制造標準(zhun)符合(he)(he)GB/T17215.321-2008《1級(ji)和2級(ji)靜止(zhi)式(shi)交(jiao)流有(you)功(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)表(biao)(biao)(biao)》、GB/T17215.323-2008、DL/T614-1997《多功(gong)能(neng)(neng)(neng)(neng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)表(biao)(biao)(biao)》、DL/T645-1997《多功(gong)能(neng)(neng)(neng)(neng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)表(biao)(biao)(biao)通信規約》等(deng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)行(xing)業標準(zhun)對三相靜止(zhi)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)表(biao)(biao)(biao)全部(bu)技術要(yao)求，是(shi)對需要(yao)進(jin)行(xing)無功(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量考核的(de)(de)(de)企業、變電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)站或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)廠理想的(de)(de)(de)選(xuan)擇，亦(yi)適合(he)(he)輸配(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)或配(pei)網(wang)自動化用表(biao)(biao)(biao)。本(ben)產品可(ke)供計量參比頻率為50Hz電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)網(wang)中的(de)(de)(de)三相交(jiao)流有(you)功(gong)和無功(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)，并(bing)能(neng)(neng)(neng)(neng)進(jin)行(xing)正、反(fan)向(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)(neng)計量和紅外及RS485通訊功(gong)能(neng)(neng)(neng)(neng)。其特點(dian)是(shi)精度高(gao)、可(ke)靠性好、寬負荷、低功(gong)耗、誤差曲線平直(zhi)、抗干擾能(neng)(neng)(neng)(neng)力(li)強。

2、工(gong)作原理

2、1 電(dian)能計量(liang)單元工作原(yuan)理(li)

電能計量單元工作原理

   被計量(liang)的(de)(de)每一相電(dian)能(neng)的(de)(de)電(dian)流(liu)通過(guo)(guo)(guo)互感器(qi)采樣(yang)得到(dao)電(dian)壓(ya)信(xin)號,再(zai)通過(guo)(guo)(guo)ATT7026A芯片內部的(de)(de)差放電(dian)路將電(dian)壓(ya)信(xin)號放大,放大的(de)(de)信(xin)號經(jing)過(guo)(guo)(guo)A/D轉換成(cheng)與(yu)其成(cheng)比例的(de)(de)數(shu)字信(xin)號,再(zai)經(jing)過(guo)(guo)(guo)高(gao)通濾波去除信(xin)號中的(de)(de)直流(liu)分量(liang)后進(jin)入數(shu)字乘法(fa)器(qi)的(de)(de)一個(ge)輸入端(duan)。被計量(liang)的(de)(de)電(dian)能(neng)電(dian)壓(ya)信(xin)號經(jing)過(guo)(guo)(guo)電(dian)阻分壓(ya)取(qu)樣(yang)，通過(guo)(guo)(guo)

ATT7026A芯片內(nei)部(bu)的差(cha)放(fang)電路將信號放(fang)大，再經過A/D轉換成與其成比例的數字信號，進入數字乘(cheng)法(fa)器的另一個輸入端與電流通道的信號進行乘(cheng)法(fa)運(yun)

算，完(wan)成被計量電(dian)(dian)能的(de)瞬(shun)時(shi)功(gong)率測量。每相輸(shu)出(chu)瞬(shun)時(shi)功(gong)率通過數(shu)(shu)字低通濾波器,進(jin)(jin)行積(ji)分(fen)處(chu)理，然(ran)后進(jin)(jin)行絕對值累加(jia)后進(jin)(jin)入"數(shu)(shu)字/頻率"轉換器，經(jing)過分(fen)頻電(dian)(dian)路輸(shu)出(chu)的(de)脈沖經(jing)過隔離后送入CPU單元進(jin)(jin)行處(chu)理，分(fen)別記錄有功(gong)和無(wu)功(gong)的(de)總(zong)電(dian)(dian)量及有功(gong)反向電(dian)(dian)量。

3.2 CPU單元工作原理

電能(neng)(neng)計(ji)量(liang)單元輸(shu)出(chu)的高頻(pin)脈沖通過兩個光(guang)電耦合器(qi)，一(yi)路(lu)作為無(wu)源脈沖輸(shu)出(chu)用于出(chu)廠檢驗和用戶對電能(neng)(neng)表(biao)進(jin)(jin)行(xing)校驗；另一(yi)路(lu)送到CPU芯片(pian)進(jin)(jin)行(xing)數(shu)(shu)據處理。CPU在系統(tong)（電能(neng)(neng)表(biao)程(cheng)序(xu)）指(zhi)令下，根據數(shu)(shu)據存(cun)(cun)(cun)儲(chu)(chu)器(qi)中的記憶及儀表(biao)常數(shu)(shu)計(ji)算出(chu)有功和無(wu)功的電量(liang)值(zhi)，再轉存(cun)(cun)(cun)到內部存(cun)(cun)(cun)儲(chu)(chu)器(qi)中，存(cun)(cun)(cun)儲(chu)(chu)的數(shu)(shu)據既可以(yi)通過LCD顯(xian)示(shi)， 又(you)可以(yi)通過紅外和RS485兩種通迅方式輸(shu)出(chu)。

 

3.技術(shu)指標

 ·參(can)比頻(pin)率(lv)：50Hz；

   ·參比(bi)電(dian)壓：三相四(si)線 3X220/380V、3X57.7/100V;

 三(san)相三(san)線 3X380V、3X100V；

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

   ·儀表常數：100imp/kWh-6400imp/kWh（以銘牌標注為(wei)準）；

   ·準確度等級：有功1級、無功2級；

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·起動：在參比(bi)電(dian)壓(ya)、參比(bi)頻率及功率因數為(wei)1.0的條件下,有功0.004Ιb（1級），無功0.005Ιn（2級）電(dian)能(neng)表能(neng)起動并開(kai)始連(lian)續計量(liang)電(dian)能(neng)。     

    ·潛(qian)(qian)動：具有邏(luo)輯防(fang)潛(qian)(qian)動功(gong)能,電(dian)壓回(hui)路(lu)加參(can)比電(dian)壓115%，電(dian)流(liu)回(hui)路(lu)斷開的情(qing)況(kuang)下，電(dian)能表不產生多余(yu)一個脈沖(chong)輸出。

·氣候(hou)條件

·電氣參數

4.尺寸及(ji)重量

4.1外形(xing)及安裝尺(chi)寸圖

4.2外(wai)形尺寸：270X170X79mm；安裝(zhuang)尺寸：240X150mm

4.3重量： 約2kg

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5.安裝使用

   ·安裝電能表需有經(jing)驗的(de)電工或專業(ye)人員(yuan)，并確定已經(jing)讀(du)完本(ben)手冊；

   ·從(cong)包裝箱(xiang)(xiang)中取出電能(neng)表，確認(ren)外(wai)殼無損傷，檢查包裝箱(xiang)(xiang)中的物品是否和清單中的吻合；

   ·電(dian)能表(biao)上部有(you)掛(gua)鉤(gou)螺釘孔，用M4掛(gua)鉤(gou)螺釘固定(ding)，電(dian)能表(biao)下部有(you)兩個安裝孔，用M4X10或M4X12自攻(gong)螺釘固定(ding)在墻壁或接(jie)線板上（見(jian)外形尺(chi)寸(cun)圖）；

  ·檢(jian)查(cha)兩端的(de)鉛(qian)封是否完好；

   ·電能(neng)表應按接(jie)線(xian)端(duan)(duan)蓋上的接(jie)線(xian)圖(tu)正確接(jie)線(xian)，13、14端(duan)(duan)為(wei)RS485通訊接(jie)口端(duan)(duan)，15、16端(duan)(duan)為(wei)有功脈(mo)沖測試輸出端(duan)(duan)，17、18端(duan)(duan)為(wei)無功脈(mo)沖測試輸出端(duan)(duan)；

   ·脈沖測(ce)試口示意(yi)圖