諧波電能表PZ系列提供(gong)一種電能(neng)表(biao)諧波試驗(yan)裝(zhuang)(zhuang)置及其方法，所(suo)述裝(zhuang)(zhuang)置包(bao)括(kuo)三(san)相(xiang)交流(liu)(liu)程控(kong)源(yuan)(yuan)、電流(liu)(liu)諧波發(fa)生器、標(biao)(biao)準表(biao)和(he)誤差(cha)計算(suan)器；所(suo)述三(san)相(xiang)交流(liu)(liu)程控(kong)源(yuan)(yuan)、電流(liu)(liu)諧波發(fa)生器、標(biao)(biao)準表(biao)和(he)誤差(cha)計算(suan)器依次(ci)連接。

     諧波電表所述方法包括：
（1）三相交流程控源和電流諧波發生器產生所需參數；
（2）將所需參數提供給被校表和標準表；
（3）經被校表和標準表的電能脈沖比對計算出誤差；
（4）并與產生正弦波的電源下的誤差進行比較，檢驗出誤差影響量。
本發(fa)明能(neng)有效地實(shi)現電(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)流(liu)高次(ci)(ci)(ci)(ci)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)，實(shi)現直流(liu)偶次(ci)(ci)(ci)(ci)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)，次(ci)(ci)(ci)(ci)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)，奇次(ci)(ci)(ci)(ci)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)的(de)輸出，并對直流(liu)偶次(ci)(ci)(ci)(ci)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)、次(ci)(ci)(ci)(ci)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)、奇次(ci)(ci)(ci)(ci)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)這三種諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)進(jin)(jin)行(xing)(xing)切換，實(shi)現一次(ci)(ci)(ci)(ci)接(jie)線可進(jin)(jin)行(xing)(xing)多個(ge)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)試驗。目前由(you)于大(da)量(liang)的(de)非線性用電(dian)(dian)(dian)(dian)(dian)設備(bei)的(de)增加，在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)網中產生大(da)量(liang)的(de)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)，給電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)子裝置帶(dai)來的(de)諧(xie)(xie)(xie)波(bo)(bo)(bo)(bo)(bo)問題，對電(dian)(dian)(dian)(dian)(dian)力系統安全、穩定、經濟運行(xing)(xing)構(gou)成潛在(zai)(zai)威(wei)脅和對電(dian)(dian)(dian)(dian)(dian)能(neng)計量(liang)產生影(ying)響，給周圍電(dian)(dian)(dian)(dian)(dian)網運行(xing)(xing)帶(dai)來極大(da)影(ying)響。

     主要可(ke)(ke)分(fen)為兩類:一是含半導體的(de)非線(xian)性元件，如各(ge)種(zhong)整流(liu)設(she)(she)(she)(she)(she)備(bei)、變流(liu)器、交直流(liu)換流(liu)設(she)(she)(she)(she)(she)備(bei)、變頻(pin)器等(deng)節能和控(kong)制用的(de)電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)子設(she)(she)(she)(she)(she)備(bei)；二是含電(dian)(dian)(dian)(dian)弧(hu)和鐵磁非線(xian)性設(she)(she)(she)(she)(she)備(bei)的(de)使(shi)用，如交流(liu)電(dian)(dian)(dian)(dian)弧(hu)爐及鐵磁諧振設(she)(she)(she)(she)(she)備(bei)等(deng)。隨著硅(gui)整流(liu)、電(dian)(dian)(dian)(dian)弧(hu)爐及可(ke)(ke)控(kong)硅(gui)換流(liu)設(she)(she)(she)(she)(she)備(bei)的(de)廣泛使(shi)用和各(ge)種(zhong)非線(xian)性負荷(he)的(de)增加(jia)，當正弦基波(bo)(bo)電(dian)(dian)(dian)(dian)壓施加(jia)于(yu)非線(xian)性設(she)(she)(she)(she)(she)備(bei)時，非線(xian)性設(she)(she)(she)(she)(she)備(bei)對電(dian)(dian)(dian)(dian)網(wang)的(de)電(dian)(dian)(dian)(dian)壓電(dian)(dian)(dian)(dian)流(liu)的(de)正弦波(bo)(bo)產(chan)生(sheng)影響，使(shi)其產(chan)生(sheng)高(gao)次諧波(bo)(bo)，諧波(bo)(bo)電(dian)(dian)(dian)(dian)流(liu)注入到電(dian)(dian)(dian)(dian)網(wang)中，造(zao)成電(dian)(dian)(dian)(dian)壓正弦波(bo)(bo)形畸變，這些設(she)(she)(she)(she)(she)備(bei)就成了(le)電(dian)(dian)(dian)(dian)力(li)系統的(de)諧波(bo)(bo)源(yuan)。諧波(bo)(bo)對電(dian)(dian)(dian)(dian)能表計量的(de)影響越來越受到人們(men)的(de)重(zhong)視(shi)，所以就需(xu)要一種(zhong)諧波(bo)(bo)源(yuan)來測試(shi)諧波(bo)(bo)對電(dian)(dian)(dian)(dian)能表計量誤差影響量的(de)檢驗。

      諧(xie)波電(dian)(dian)表價(jia)格(ge)采(cai)用(yong)交(jiao)流采(cai)樣技術，能分別測量電(dian)(dian)網中的電(dian)(dian)流、電(dian)(dian)壓、功(gong)率(lv)(lv)、功(gong)率(lv)(lv)因數(shu)和電(dian)(dian)能等參(can)數(shu)，可(ke)通(tong)過面板薄膜開(kai)關設(she)置倍率(lv)(lv)。帶RS-485通(tong)訊(xun)接口(kou)，采(cai)用(yong)Modbus或Profibus協議；也可(ke)將電(dian)(dian)量信號(hao)轉換成標準(zhun)的直流模擬信號(hao)輸出(chu)；或帶開(kai)關量輸入／輸出(chu)，繼電(dian)(dian)器(qi)報警輸出(chu)等功(gong)能。