6.主要功能(neng)

6.1計量功能(neng)

6.1.1 計量有功(gong)和無功(gong)電能并(bing)存儲(chu)其數據(ju)。

6.1.2 電(dian)(dian)能(neng)按正(zheng)、反向有功電(dian)(dian)量和無(wu)功總電(dian)(dian)能(neng)分別計算、顯示、轉存。

6.1.3 正向、反(fan)向有功和無功用電(dian)，反(fan)復(fu)斷(duan)電(dian)、上(shang)電(dian)操(cao)作都不(bu)影響電(dian)能表的(de)準確性；

6.1.4 指示燈

當(dang)有電量(liang)脈沖信號時，點亮脈沖指示(shi)燈（有功和(he)無功各有一只(zhi)指示(shi)燈）約80±20ms。

1.概述

    DTS(X)6111、DSS(X)6111型三相電(dian)(dian)(dian)(dian)(dian)子式(shi)有(you)功(gong)(gong)(gong)無功(gong)(gong)(gong)組合(he)(he)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao)（以下簡(jian)稱(cheng)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao)），是(shi)為(wei)了(le)適(shi)(shi)應電(dian)(dian)(dian)(dian)(dian)網(wang)改造設計(ji)開(kai)發的(de)(de)有(you)功(gong)(gong)(gong)、無功(gong)(gong)(gong)組合(he)(he)式(shi)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao)。它(ta)具有(you)較高的(de)(de)準(zhun)確度和可行(xing)性(xing)(xing)。產品制造標(biao)準(zhun)符合(he)(he)GB/T17215.321-2008《1級和2級靜(jing)止式(shi)交流(liu)有(you)功(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao)》、GB/T17215.323-2008、DL/T614-1997《多功(gong)(gong)(gong)能(neng)(neng)(neng)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao)》、DL/T645-1997《多功(gong)(gong)(gong)能(neng)(neng)(neng)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao)通信規約》等(deng)電(dian)(dian)(dian)(dian)(dian)力行(xing)業(ye)標(biao)準(zhun)對三相靜(jing)止式(shi)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)表(biao)(biao)全部技術要求(qiu)，是(shi)對需要進行(xing)無功(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)量(liang)考(kao)核的(de)(de)企(qi)業(ye)、變電(dian)(dian)(dian)(dian)(dian)站(zhan)或電(dian)(dian)(dian)(dian)(dian)廠理(li)想的(de)(de)選擇，亦適(shi)(shi)合(he)(he)輸配電(dian)(dian)(dian)(dian)(dian)或配網(wang)自動化(hua)用(yong)表(biao)(biao)。本產品可供計(ji)量(liang)參比頻率為(wei)50Hz電(dian)(dian)(dian)(dian)(dian)網(wang)中的(de)(de)三相交流(liu)有(you)功(gong)(gong)(gong)和無功(gong)(gong)(gong)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)，并能(neng)(neng)(neng)進行(xing)正、反(fan)向電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)(neng)計(ji)量(liang)和紅(hong)外及RS485通訊功(gong)(gong)(gong)能(neng)(neng)(neng)。其特點是(shi)精(jing)度高、可靠性(xing)(xing)好、寬負荷、低功(gong)(gong)(gong)耗、誤差曲線平直、抗干擾能(neng)(neng)(neng)力強。

2、工作原理

2、1 電能計量(liang)單元工(gong)作原理

電能計量(liang)單元工作原理

   被計量(liang)的(de)(de)(de)每一(yi)相電(dian)能的(de)(de)(de)電(dian)流通(tong)過(guo)互感器采樣得到電(dian)壓(ya)信(xin)(xin)號(hao),再(zai)通(tong)過(guo)ATT7026A芯片(pian)內部的(de)(de)(de)差放電(dian)路將電(dian)壓(ya)信(xin)(xin)號(hao)放大,放大的(de)(de)(de)信(xin)(xin)號(hao)經過(guo)A/D轉換成與其(qi)成比例(li)的(de)(de)(de)數(shu)(shu)字信(xin)(xin)號(hao),再(zai)經過(guo)高通(tong)濾波去除信(xin)(xin)號(hao)中的(de)(de)(de)直(zhi)流分量(liang)后進入(ru)數(shu)(shu)字乘法器的(de)(de)(de)一(yi)個輸入(ru)端。被計量(liang)的(de)(de)(de)電(dian)能電(dian)壓(ya)信(xin)(xin)號(hao)經過(guo)電(dian)阻分壓(ya)取樣，通(tong)過(guo)

ATT7026A芯片內部的差放電(dian)路將信號放大，再經過A/D轉換成(cheng)與其成(cheng)比例的數(shu)字信號，進入數(shu)字乘(cheng)法器的另一個輸入端(duan)與電(dian)流通道(dao)的信號進行(xing)乘(cheng)法運

算，完成被計量電能(neng)的瞬時功(gong)(gong)(gong)率(lv)測(ce)量。每相輸出瞬時功(gong)(gong)(gong)率(lv)通(tong)過數(shu)字(zi)(zi)低(di)通(tong)濾波器,進(jin)行(xing)(xing)積分處(chu)理，然(ran)后進(jin)行(xing)(xing)絕對值(zhi)累加后進(jin)入(ru)"數(shu)字(zi)(zi)/頻(pin)率(lv)"轉換器，經(jing)過分頻(pin)電路(lu)輸出的脈(mo)沖(chong)經(jing)過隔(ge)離后送(song)入(ru)CPU單元(yuan)進(jin)行(xing)(xing)處(chu)理，分別記錄有(you)功(gong)(gong)(gong)和無功(gong)(gong)(gong)的總電量及有(you)功(gong)(gong)(gong)反向電量。

3.2 CPU單元工(gong)作原(yuan)理

電(dian)能計(ji)量(liang)單(dan)元輸(shu)出(chu)(chu)(chu)的(de)高頻脈(mo)沖(chong)通過兩個光電(dian)耦合(he)器，一路(lu)作為(wei)無(wu)源(yuan)脈(mo)沖(chong)輸(shu)出(chu)(chu)(chu)用于出(chu)(chu)(chu)廠檢驗和(he)用戶(hu)對電(dian)能表進行(xing)校驗；另一路(lu)送到CPU芯片進行(xing)數據(ju)(ju)處(chu)理。CPU在系統(tong)（電(dian)能表程(cheng)序）指令下，根據(ju)(ju)數據(ju)(ju)存(cun)儲(chu)器中(zhong)的(de)記憶及儀表常數計(ji)算出(chu)(chu)(chu)有功和(he)無(wu)功的(de)電(dian)量(liang)值，再轉存(cun)到內部存(cun)儲(chu)器中(zhong)，存(cun)儲(chu)的(de)數據(ju)(ju)既(ji)可以通過LCD顯示， 又可以通過紅外和(he)RS485兩種通迅方(fang)式輸(shu)出(chu)(chu)(chu)。

 

3.技術(shu)指標

 ·參比頻(pin)率：50Hz；

    ·參比電壓：三相四(si)線(xian) 3X220/380V、3X57.7/100V;

 三相(xiang)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(shi)：3X5(20)A、3X10(40)A、3X15(60)A、3X20(80)A、3X30(100)A;

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

   ·準確度等級(ji)：有功(gong)1級(ji)、無功(gong)2級(ji)；

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·起動：在(zai)參(can)比電壓、參(can)比頻率(lv)及(ji)功(gong)率(lv)因數為(wei)1.0的條件下,有功(gong)0.004Ιb（1級），無功(gong)0.005Ιn（2級）電能表能起動并開始(shi)連續(xu)計量電能。     

    ·潛動：具有(you)邏輯防潛動功(gong)能(neng),電(dian)壓回路(lu)加(jia)參比電(dian)壓115%，電(dian)流回路(lu)斷開的情況下，電(dian)能(neng)表不產生多余(yu)一個脈沖輸出。

·氣(qi)候條件

·電氣參數

4.尺寸(cun)及重量

4.1外形及安裝尺寸圖

4.2外形尺(chi)(chi)寸：270X170X79mm；安裝尺(chi)(chi)寸：240X150mm

4.3重量(liang)： 約2kg

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5.安裝使用

   ·安裝電能表需有經驗(yan)的電工或專(zhuan)業人員，并確定(ding)已經讀(du)完本(ben)手冊；

   ·從包裝(zhuang)(zhuang)箱中(zhong)取出(chu)電能表(biao)，確(que)認外殼無損傷，檢查包裝(zhuang)(zhuang)箱中(zhong)的物品是否(fou)和清單中(zhong)的吻合；

   ·電能表(biao)上部有(you)掛(gua)鉤螺釘孔(kong)，用M4掛(gua)鉤螺釘固定，電能表(biao)下部有(you)兩個安裝孔(kong)，用M4X10或(huo)M4X12自攻螺釘固定在墻壁或(huo)接線板上（見外形尺寸圖）；

  ·檢查(cha)兩端的鉛封是否(fou)完好；

   ·電能表應(ying)按接(jie)線端(duan)蓋上的接(jie)線圖正確接(jie)線，13、14端(duan)為RS485通訊接(jie)口端(duan)，15、16端(duan)為有功脈沖測試輸出(chu)端(duan)，17、18端(duan)為無功脈沖測試輸出(chu)端(duan)；

   ·脈沖測試口示意圖