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典型結構 典型的造船業通常為3級配電結構,從入戶的35kV/10kv高壓主變壓器,經過高壓配電到10kv/690v(400V)壓器,再到低壓總配電,經690V(400v)母線和開關分配到用電終端設備。
由變頻器、變流器、焊han機ji等deng生sheng產chan設she備bei造zao成cheng的de諧xie波bo電dian流liu回hui饋kui,隨sui著zhe供gong電dian回hui路lu一yi路lu上shang行xing到dao高gao壓ya電dian網wang測ce,並bing對dui周zhou邊bian設she備bei發fa生sheng侵qin害hai,包bao括kuo配pei電dian線xian路lu上shang的de重zhong要yao節jie點dian和he設she備bei:電容補償櫃、變壓器、開關、電纜、智能表、柴油發電機組、切換開關和接觸器等設備造成侵害。
通常采用高壓集中治理、低di壓ya區qu域yu治zhi理li或huo終zhong端duan治zhi理li,在zai變bian壓ya器qi配pei電dian輸shu出chu開kai關guan後hou端duan,其qi他ta負fu載zai開kai關guan前qian端duan配pei置zhi靜jing態tai無wu功gong發fa生sheng器qi或huo有you源yuan濾lv波bo器qi或huo二er者zhe兼jian有you,主zhu要yao針zhen對dui無wu功gong補bu償chang與yu諧xie波bo治zhi理li。提ti高gao變bian壓ya器qi利li用yong率lv,降jiang低di變bian壓ya器qi發fa熱re,提ti升sheng變bian壓ya器qi的de可ke靠kao性xing和he壽shou命ming;解決電容補償櫃的諧振和電容發熱損壞等故障問題,提高係統供電可靠性。
治理方案
需求背景 諧波實際上是一種嚴重的幹擾,注入公用電網就會使電網受到“汙染”。 dianlidianzizhengliuleifuzaidedaliangyingyongdaozhixieboweihaiyijingzhubuyuqigaoxingnengdailaideliyixiangdixiao。xiebohuiyudaozhigongdianxitongdexiezhen,huoyinfarezaochengkaiguanhebianyaqidengguanjianpeidianshebeidejiangrongheguzhang,weixiegongdianxitonganquan;諧xie波bo還hai會hui對dui設she備bei內nei部bu的de電dian容rong等deng器qi件jian造zao成cheng加jia速su老lao化hua,或huo因yin肌ji膚fu效xiao應ying導dao致zhi設she備bei發fa熱re,大da大da降jiang低di設she備bei的de使shi用yong壽shou命ming。諧xie波bo對dui連lian續xu安an全quan供gong電dian構gou成cheng了le嚴yan重zhong威wei脅xie。
xiebozaizaochuanyepubiancunzai,qiexianshiyuqianzaiweihaihenda,yinci,jiejuezaochuanyedediannengzhiliangwentiduiqiyedeyiyizhongda,youxiaodezhilifanganjianggeiyonghudailaijudadejiazhi。

電能質量改善客戶價值表
解決方案
中zhong達da電dian能neng質zhi量liang柔rou性xing治zhi理li方fang案an可ke針zhen對dui現xian場chang情qing況kuang和he客ke戶hu要yao求qiu因yin地di製zhi宜yi,選xuan擇ze不bu同tong的de產chan品pin單dan元yuan和he治zhi理li方fang式shi,為wei客ke戶hu提ti供gong最zui貼tie切qie的de綜zong合he治zhi理li方fang案an,達da到dao最zui佳jia的de治zhi理li效xiao果guo,為wei客ke戶hu的de業ye務wu增zeng值zhi: 采用標準化的產品單元作為構成整個係統的元件 根據客戶現場的容量和治理要求靈活配置係統,並可根據後續要求方便的並聯擴容。兼得標準產品的高品質、易備貨、weixiuweihuyizhixingdeyoushiyijixianchanggongchengdingzhiduixianchangqingkuangdepipeidujishiyingxingyoushi。bingqichuantongwuyuanzhilixianchanggongchengdingzuodemoshidailaidekuorongbubianyijishebeiyingongchenghuaerzaochengdeyizhixingchapinzhibaozhengnandewenti。 “傻瓜式”勘查 隻zhi需xu了le解jie負fu載zai設she備bei的de容rong量liang和he總zong諧xie波bo失shi真zhen度du,即ji可ke選xuan定ding靜jing態tai無wu功gong發fa生sheng器qi與yu濾lv波bo器qi係xi統tong容rong量liang。即ji使shi對dui新xin建jian項xiang目mu也ye可ke在zai不bu需xu要yao現xian場chang勘kan查zha的de情qing況kuang下xia根gen據ju設she備bei類lei型xing與yu容rong量liang準zhun確que配pei置zhi濾lv波bo器qi係xi統tong。一yi改gai往wang日ri電dian能neng質zhi量liang改gai造zao工gong程cheng需xu要yao對dui現xian場chang諧xie波bo狀zhuang況kuang做zuo長chang時shi間jian複fu雜za的de現xian場chang測ce試shi和he分fen析xi,一yi旦dan現xian場chang勘kan查zha疏shu忽hu造zao成cheng定ding製zhi產chan品pin的de不bu匹pi配pei運yun行xing;甚至對新建工程隻能根據以往經驗配置參數,可靠性和匹配度差的問題。 針對不同的客戶對諧波治理需求的價值取向配置係統方案 分別針對連續安全運行、能耗、設備損壞及電力處罰等問題,解決客戶關心的電能質量問題。
客戶價值
在當今造船業建築變頻器、焊機等負載為廣泛應用的情況下,配電係統的載性質發生了巨大的變化,現場的電流諧波THD往往高達30%以上,傳統的電容補償櫃等電能質量裝置,不但不能有效的改善電能質量,甚至補償櫃本身也成為電能質量問題(諧波)的de犧xi牲sheng品pin。很hen多duo現xian場chang,電dian容rong器qi發fa生sheng損sun壞huai以yi及ji線xian路lu發fa熱re的de情qing況kuang非fei常chang嚴yan重zhong。我wo們men看kan到dao在zai造zao船chuan廠chang內nei一yi些xie無wu功gong補bu償chang裝zhuang無wu法fa投tou入ru閑xian置zhi不bu用yong,從cong而er造zao成cheng無wu功gong指zhi標biao低di下xia,進jin一yi步bu造zao成cheng變bian壓ya器qi和he線xian路lu的de進jin一yi步bu發fa熱re,能neng耗hao加jia大da;要麼麵臨著投入使用電容頻繁損壞,隨時麵臨諧振風險造成供電安全問題,甚至導致其他設備損壞。
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