描述
德國原裝進口手持式電磁輻射檢測儀NF5035,(工頻場強儀)頻率范圍1Hz-1MHz,可選件擴展至30MHz,內置專利3D磁場傳感器和電場傳感器,滿足電磁場1D、2D、3D的測試,內置高性能鋰電池,輕便手持設計,輕巧便攜,配備小型防水重型塑料箱,方便外出測試工作,一套儀器即可完成低頻電場和磁場測量,如高壓輸電線、變電站、配電室、感應爐、地鐵、電車等作業(yè)場所或公共場所,進行設備低頻電磁輻射研究或環(huán)境低頻電磁輻射測量或研究等不同領域。內置ICNIRP電磁輻射暴露限值標準百分比測量,同時顯示功率密度,直觀顯示測量結果。任意設定測試頻段,測試所在頻段的電磁場強度,電場測定建議選用專用木質三腳架、USB光纖套件測量,實現(xiàn)遠距離監(jiān)測測試數(shù)據(jù),有效保證測量結果不受影響。
適用標準及測量方法:
GB 8702-2014_《電磁輻射防護規(guī)定》
GJB 5313-200_《電磁輻射暴露限值和測量方法》
HJ-T_10.2-1996_《輻射環(huán)境保護管理導則-電磁輻射監(jiān)測儀器和方法》
HJ/T24-1998_《500kV 超高壓送變電工程電磁輻射環(huán)境影響評價技術規(guī)范》
GBZ2.2-2007_《工作場所有害因素職業(yè)接觸限值》
GBZ/T 189.2-2007_《工業(yè)場所物理因素測量第2部分:100kHz~30MHz高頻電磁場》
GBZ/T 189.3-2007_《工作場所物理因素測量第3部分:50Hz 工頻電場》
特點:
1. 便攜式設計,重量輕,可輕松單手操作,便于移動或現(xiàn)場測量
2. 快速FFT/DFT頻譜分析功能
3. 高精度單軸電場探測器及3D各向同性電磁場探測器,靈敏度高,響應快速,可實現(xiàn)全方向精確檢測
4. 增強的新一代高精度、大尺寸液晶顯示屏,清晰、直觀的顯示多種檢測結果
5. 多種顯示模式:實時、最大值保持、暴露極限計算和顯示(DIN/VDE 0848)等,可同時顯示頻率和信號強度。
6. 內置USB數(shù)據(jù)通訊端口,配合專用數(shù)據(jù)分析軟件可與電腦聯(lián)接甚至組建電磁輻射實時監(jiān)測系統(tǒng),實現(xiàn)電磁輻射的連續(xù)多點監(jiān)測
應用:
1. 環(huán)境電磁輻射監(jiān)測
2. 工作場所的電磁場安全監(jiān)測
3. 國防電子設備的電磁安全檢測
4. 航空航天設備電磁環(huán)境監(jiān)測
5. 鐵路牽引電力、地鐵
6. 高壓輸電線、電源線及電纜
7. 變壓器、變電站、配電室
8. 電力系統(tǒng)及諧波
9. 節(jié)能燈泡
10. 開關電源
11. TFT、LCD液晶顯示器及電視機
12. 135kHz RFID
13. 各種家電工頻電場、磁場輻射測試
規(guī)格參數(shù) | 標準配置 | |
u名稱:低頻電磁場輻射測試儀 | u 1 主機NF5035一臺 | |
u型號:NF-5035 | u 2 1D電場探頭(內置) | |
u 頻率范圍:1Hz to 1MHz ★ | u 3 3D磁場探頭(內置) | |
u可選008擴展頻率范圍:1Hz to 20MHz ★ | u 4 3000mAh鋰電池(內置) | |
u可選010擴展頻率范圍:1kHz to 30MHz ★ | u 5 配送USB數(shù)據(jù)線一根 | |
u磁場測量范圍(Tesla):1pT to 500uT (典型值50Hz) ★ | u 6 配送電源適配器一個 | |
u磁場測量范圍(Gauss): 10uG to 5G(典型值50Hz) ★ | u 7 配送手握式微型三腳架一個 | |
u電場測量范圍:0.1V/m to 5kV/m(典型值50Hz) ★ | u 8 光盤(規(guī)格書、說明書、MCS軟件) | |
u精度:3%(典型)★ | u 9 實時控制分析軟件 MCS | |
u最小采樣時間:10mS★ | u 10 黑色重型防水塑料手提箱 | |
u分辨率帶寬(RBW):0.3Hz to 1MHz (1-3-10 step)★ | ||
u可用單位:V, V/m, T, G, A/m★ | ||
u檢波器:RMS、Min/Max | ||
u解 調:AM,FM | ||
u模擬輸入:200nV to 200mV (50Hz) | ||
u輸入(Input):高阻抗-SMA射頻輸入 | ||
u音頻:內置揚聲器(具音量控制和標準2.5mm插孔) | ||
u數(shù)據(jù)接口:USB★ | ||
u尺寸(L/W/D):250x86x27 mm★ | ||
u重 量:430g★ | ||
u可選1MB內存擴展 | ||
u可選戶外橡膠保護套 | ||
u可選USB光纖連接配件 | ||
u可選木質三腳架電場測試 |
可選件列表 | |
編號 | 選件描述 |
u180 | 1MB內存擴展 強烈推薦使用(出廠內置) |
u181-2 | H高精度時機0.5ppm 提供高精度參考頻率(出廠內置) |
u188 | 3D地磁場傳感器,各向同性3D測量地球磁場的靜態(tài)磁場(出廠內置) |
u179 | 擴展頻率范圍至20MHz(出廠內置) |
u178 | 24Bit分辨率(只與選項006組合),超高分辨率的靜態(tài)磁場測量(出廠內置) |
u179-1 | 擴展頻率范圍至30MHz(出廠內置) |
u322 | UBBV-NF-25 / 25dB前置放大器 1Hz-60MHz |
u323 | UBBV-NF-35 / 35dB前置放大器 1Hz-30MHz |
u730 | 有源差分探頭,測量DSL,ADSL,VDSL,電路,從DC至30MHz.最大值1400V(CAT3)700nV靈感度! |
u786 | 德國安諾尼射頻頻譜儀校準證NF-SPECTRAN,3維傳感器詳細校準表高達380個校準點 |
u787 | 國內計量機構頻譜儀校準報告HF/NF-SPECTRAN |
u241 | 輕便鋁制手提箱(300x190x70mm)裝單機 |
u243 | 黑色重型塑料手提箱,可容納2臺頻譜儀和一個對數(shù)天線Hyper LOG700xx或60xx(515x420x160mm) |
u244 | BicoLOG天線專用黑色重型塑料手提箱(515x420x160mm) |
u252 | 1300mAh鎳氫電池 |
u254 | 3000mAh鋰電池 |
u260 | 12V車載電源,帶電源指示燈,可在車內操作儀器和電池充電 |
u280 | 手握式微型三角架(Spectrum HF & NF系列、HyperLOG、BicoLOG天線等) |
u281 | 大型鋁制三角架(Spectrum HF & NF系列、HyperLOG、BicoLOG天線等) |
u282NEW | 重型多功能三角架,含1/4”& 3/8”連接器 |
u283 | 大型專用三角架(HyperLOG 20xxx EMI天線) |
u284 | 重型三腳架(磁場跟蹤天線) |
u290 | 橡膠保護套(適用手持式頻譜儀) |
u322 | UBBV-NF-25 / 25dB前置放大器 1Hz-60MHz |
u323NEW | UBBV-NF-35 / 35dB前置放大器 1Hz-30MHz |
u330NEW | GPS Logger,內置陀螺儀、加速計 |
u770 | SMA(母/公)-N公型轉接器 |
u770-1 | SMA to SMA (母/公) 連接器(可用于UBBV前置放大器) |
u771-3 | SMA-0.3米連接線 (公/公) |
u771X | SMA-連接線1米(公/公)(易安裝,自帶緊固螺帽) |
u772X | SMA-連接線5米(公/公)(低耗,易安裝,自帶緊固螺帽) |
u773X | SMA-連接線10米(公/公)(低耗,易安裝,自帶緊固螺帽) |
u773-1 | SMA-電線1米(公/公) |
u773-2 | SMB-電線3米(SMB to SMA)用于近場探頭套裝 |
u774 | 連接PC的USB數(shù)據(jù)線,含電磁鐵氧體屏蔽版,必購件! |
u778 | DC過濾器(SMA),保護頻譜儀免受全直流電壓損害;例如衛(wèi)星,GPS天線或直接在微機上測量,必購件! |
u779 | 校準電阻(SMA),50歐姆電阻,對頻譜儀本底噪聲提供完善校準結果! |
5021電導率計,筆式電導率計廠家
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5021電導率計,筆式電導率計廠家 參數(shù):
附件類別 產品名稱 基本功能和規(guī)格 電導率 測量范圍 (0~10.00) mS/cm, 分為三段,自動切換量程: (0~99.9)μS/cm (100~999)μS/cm (1.00~10.00)mS/cm 分辨率 0.1/1μS/cm;0.01 mS/cm 度 ±1%FS 溫度補償 (5~50)℃(自動) 其他技術參數(shù) 自動校正 1點校正(1413μS/cm) 電源 AAA電池2節(jié),1.5V×2;可連續(xù)使用100小時以上 尺寸和重量 39×25×176 mm/ 87g 防水等級 IP57
5021型筆式電導率計 經濟型電導率測試筆,符合常規(guī)使用要求,性價比。 ● 測量范圍大,自動切換量程。 ● 自動校正,自動溫度補償(無溫度顯示)。 ● 低電壓報警顯示。 ● 10分鐘自動關機。 ● 配置電導率校正溶液。 ● IP57防水等級。
5021電導率計,筆式電導率計廠家 相關科研試劑:
2-硝基-3-甲基苯酚CAS:4920-77-8,Methyl-2-nitrophe,Taq DNA Polymerase(10000U),TQ2100-03E-0647,補骨脂酚,標準品,Backuchiol,0.97bs-0241R,艾滋病病毒抗體價格,Anti-HIVgp120,Anti-HIVgp120鹽蛋白胨水,250,用于細菌鹽還原產氣試驗(2005年版藥典配方)對溴叔丁基苯CAS:3972-65-4,1-Bromo-4-tert-butylbenzene,97%CAS:140-72-7,溴代十六烷基,98%價格|現(xiàn)貨,Hexadecylpyridinium bromid,0.984-Amino-6-hydroxy-2-methylpyrimidinedihydrate,4-Amino-6-hydroxy-2-methylpyrimidinedihydrate,GMS30017,TrpE融合蛋白擴增試劑盒,10次GMS10211.4,石蠟切片組織BAX蛋白表達熒光顯微鏡檢測試劑盒,10/20次CAS:590-90-9,4-羥基-2-丁酮,95%價格|現(xiàn)貨,Hydroxy-2-butan,0.95GMS17022,純化人體RUNX3基因重組表達載體(pGEFP-RUNX3)測序引物對,2 OD藥敏試驗瓊脂,BR,
掃描超聲波測厚儀UM-5(彩屏)技術參數(shù):工作原理:使用雙晶探頭的超聲波脈沖/回波法。測量范圍:0.5 至 508 毫米(0.02 至 20 英寸);取決于所用探頭、材料、表面狀況和溫度。單位和顯示分辨率:毫米-0.01,0.1;英寸-0.001,0.01。顯示模式:厚度值模式;A 掃描或波形模式;最小/最大值捕獲模式;差值/減薄率模式。V 路徑修正:自動 V 聲程修正,補償雙晶探頭的非線性度。示值誤差:±0.05mm(25mm 以下);±0.2% H(100mm 以下);±0.5% H(100mm 以上)。注:H 為被測物厚度重復性:±0.05mm。顯示屏:320×240 點陣,2.4 寸真彩屏。測量速率:每秒 4 次測量。材料聲速范圍:500~9999m/s,0.0197~0.3937in/us。質保期:2 年。工作語言:中文。電源:兩節(jié) 1.5V AA 電池。操作時間:兩節(jié) 5 號電池,使用時間大于 36 小時。自動關機:5 分鐘無操作后自動關機。工作溫度:-10℃~+50℃,有特殊要求可達-20℃。尺寸:153mm×76mm×37mm(H× W× D)。重量:含電池 280g。掃描超聲波測厚儀UM-5(彩屏)標準配置:測厚儀UM-5,標配探頭,儀器箱,兩節(jié) 1.5V 堿性電池,耦合劑,操作手冊。
2.5次元手動產品特點:
2.5次元采用了00級高精度的花石底座和立柱,保證了高強度,耐腐蝕,極高的穩(wěn)定性
雙層高精度高強度全侶合金的移動工作臺,表面硬氧處理,穩(wěn)定性好
精密的V型導軌和高精度無牙螺桿傳動,減少機械位移誤差
可選擇2D測量及2.5D測量機型
可選加高端的雙遠心光路鏡頭及技術的應用
型號 | Eagle 系列 | ||||||
2010 | 3020 | 4030 | 5040 | 6050 | 7060 | ||
行程(mm) | X | 200 | 300 | 400 | 500 | 600 | 700 |
Y | 100 | 200 | 300 | 400 | 500 | 600 | |
Z | 200 | 200 | 200 | 200 | 300 | 300 | |
外形尺寸(mm) | 550*550*950 | 920*60*1150 | 1080*750*1180 | 1220*830*1180 | 2100*1100*2000 | 2100*1250*2000 | |
工作臺大。╩m) | 360*260 | 550*500 | 610*510 | 710*610 | 850*750 | 890*850 | |
工作臺承重(kg) | 15 | 20 | 30 | 30 | 35 | 35 | |
機臺重量(kg) | 120 | 260 | 360 | 450 | 600 | 800 |
電話:05 92-510 759 2 傳真:059 2-514 3 540 郵箱:da lis0 01@126.com 達利思特價Q達利思特價Q:16 9 311 86 77網站:http://www.xmdalis.com菲尼克斯模塊1208199 CF1000-1,5230V1208209 CF1000-1,5120V1201280 NS32CU/120QMMUNPERF2000MM2838924 CHECKMASTER5147777 BLUEMARKX15146147 THERMOMARKW20811422 GPA/SK610X610X1,5...1205516 CF3000-2,5120V5020658 SORTI4/125031524 SORTI4/241205477 CF3000-2,51658228 VS-GOF-FA-KONFTOOL-EU0811419 GPA/SK610X610X0,8...0806518 GPK/SK610X610X1,5WH/BK0806563 GPK/SK610X610X1,5SR/BK0806589 GPK/SK610X610X1,5...1658231 VS-GOF-FA-KONFTOOL-US0806437 GPK/SK610X610X0,8WH/BK0806482 GPK/SK610X610X0,8SR/BK0806505 GPK/SK610X610X0,8...2780894 IBSSOFTWARELICENCESLAVE5605942 RAD-SOL-SET-24-605606285 RAD-SOL-SET-24-802885472 RAD-SOL-SET-24-1000811435 GPA610X610X1,5...5605941 RAD-SOL-SET-24-405020438 SORTI3/82916668 VISU+RT-DPROXT2913360 VMT5017PM2885650 RAD-ISM-2400-REP-SET-BD-BUS5020645 SORTI3/75028731 SORTI3/183009176 UKH95-PE/N1201895 NS35/15CUUNPERF2000MM1201358 NS32CU/35QMMUNPERF2000MM0811406 GPA610X610X0,8...2700803 S-MAX417CEPN0806356 GPK610X610X1,5WH/BK0806424 GPK610X610X1,5...2700573 S-MAX415CEPN2985877 VISU+RTPROXT2700586 S-MAX412CEPN1208348 CF500-230V1208351 CF500-120V0806592 GPK610X610X0,8...2737407 IBSS7400ETHSDSCSYSKITE2737575 IBSS7400ETHSDSCSYSKIT2900616 VMT5015PM1,1DE2900629 VMT5015PM1,1EN5605992 VLC-PDK-CIT-USB2130198 UHV240-KH/KH2893914 PPC5315PMDE2893927 PPC5315PMEN2900603 VMT5015PM1,12900645 VMT5015SMDE2900658 VMT5015SMEN2893969 PPC5115PM1,1DE2893972 PPC5115PM1,1EN2916600 RFC470PN3TX5020674 SORTI2/120202303 LB100-6BU0202316 LB100-6RD0202345 LB100-6GY3121025 GTF76/482700609 S-MAX400CEPNMC2893901 PPC5315PM2900674 PPC5015PM1,1DE2900687 PPC5015PM1,1EN2916558 VISU+RT-DPRO0811794 GPEGSO2867270 RAD-ISM-900-SET-BD-BUS-ANT2867490 RAD-ISM-900-SET-BD-BUS-ANT-AU2885126 RAD-ISM-900-SET-BD-BUS-ANT-NZ0201650 FBI100-61206829 CUTFOX101206832 CUTFOX10120V0301563 ISSBI100-6-MBT2,53001459 PS-UK3-5/Z-53001462 PS-UK3-5/Z-65147007 THERMOMARKW12877309 S-MAXSWBKWPBCODN2700829 S-MAX400CEPNII2730271 IBSPCIDDK2900632 VMT5015SM2895530 PPC5115PM1,12886976 TP121T/011750322900360 PPC5315SMDE2900373 PPC5315SMEN2867733 RAD-ISM-2400-SET-BD-BUS-ANT2867089 RAD-ISM-900-SET-BD-BUS2867487 RAD-ISM-900-SET-BD-BUS-AU2885113 RAD-ISM-900-SET-BD-BUS-NZ3063057 KEL24/43063060 KEL24/53063073 KEL24/73063086 KEL24/100808561 GPK500X500X0,8WH/BK2900661 PPC5015PM1,12130143 UHV240-KH/AS2130347 UHV240-KH/M16電話:05 92-510 759 2 傳真:059 2-514 3 540 郵箱:da lis0 01@126.com 達利思特價Q達利思特價Q:16 9 311 86 77網站:http://www.xmdalis.com菲尼克斯模塊1208199 CF1000-1,5230V1208209 CF1000-1,5120V1201280 NS32CU/120QMMUNPERF2000MM2838924 CHECKMASTER5147777 BLUEMARKX15146147 THERMOMARKW20811422 GPA/SK610X610X1,5...1205516 CF3000-2,5120V5020658 SORTI4/125031524 SORTI4/241205477 CF3000-2,51658228 VS-GOF-FA-KONFTOOL-EU0811419 GPA/SK610X610X0,8...0806518 GPK/SK610X610X1,5WH/BK0806563 GPK/SK610X610X1,5SR/BK0806589 GPK/SK610X610X1,5...1658231 VS-GOF-FA-KONFTOOL-US0806437 GPK/SK610X610X0,8WH/BK0806482 GPK/SK610X610X0,8SR/BK0806505 GPK/SK610X610X0,8...2780894 IBSSOFTWARELICENCESLAVE5605942 RAD-SOL-SET-24-605606285 RAD-SOL-SET-24-802885472 RAD-SOL-SET-24-1000811435 GPA610X610X1,5...5605941 RAD-SOL-SET-24-405020438 SORTI3/82916668 VISU+RT-DPROXT2913360 VMT5017PM2885650 RAD-ISM-2400-REP-SET-BD-BUS5020645 SORTI3/75028731 SORTI3/183009176 UKH95-PE/N1201895 NS35/15CUUNPERF2000MM1201358 NS32CU/35QMMUNPERF2000MM0811406 GPA610X610X0,8...2700803 S-MAX417CEPN0806356 GPK610X610X1,5WH/BK0806424 GPK610X610X1,5...2700573 S-MAX415CEPN2985877 VISU+RTPROXT2700586 S-MAX412CEPN1208348 CF500-230V1208351 CF500-120V0806592 GPK610X610X0,8...2737407 IBSS7400ETHSDSCSYSKITE2737575 IBSS7400ETHSDSCSYSKIT2900616 VMT5015PM1,1DE2900629 VMT5015PM1,1EN5605992 VLC-PDK-CIT-USB2130198 UHV240-KH/KH2893914 PPC5315PMDE2893927 PPC5315PMEN2900603 VMT5015PM1,12900645 VMT5015SMDE2900658 VMT5015SMEN2893969 PPC5115PM1,1DE2893972 PPC5115PM1,1EN2916600 RFC470PN3TX5020674 SORTI2/120202303 LB100-6BU0202316 LB100-6RD0202345 LB100-6GY3121025 GTF76/482700609 S-MAX400CEPNMC2893901 PPC5315PM2900674 PPC5015PM1,1DE2900687 PPC5015PM1,1EN2916558 VISU+RT-DPRO0811794 GPEGSO2867270 RAD-ISM-900-SET-BD-BUS-ANT2867490 RAD-ISM-900-SET-BD-BUS-ANT-AU2885126 RAD-ISM-900-SET-BD-BUS-ANT-NZ0201650 FBI100-61206829 CUTFOX101206832 CUTFOX10120V0301563 ISSBI100-6-MBT2,53001459 PS-UK3-5/Z-53001462 PS-UK3-5/Z-65147007 THERMOMARKW12877309 S-MAXSWBKWPBCODN2700829 S-MAX400CEPNII2730271 IBSPCIDDK2900632 VMT5015SM2895530 PPC5115PM1,12886976 TP121T/011750322900360 PPC5315SMDE2900373 PPC5315SMEN2867733 RAD-ISM-2400-SET-BD-BUS-ANT2867089 RAD-ISM-900-SET-BD-BUS2867487 RAD-ISM-900-SET-BD-BUS-AU2885113 RAD-ISM-900-SET-BD-BUS-NZ3063057 KEL24/43063060 KEL24/53063073 KEL24/73063086 KEL24/100808561 GPK500X500X0,8WH/BK2900661 PPC5015PM1,12130143 UHV240-KH/AS2130347 UHV240-KH/M16
以及屏幕上的數(shù)據(jù)趨勢圖
用戶幫助屏幕: 用多種語言
顯示詳細操作說明和故障排除信息
數(shù)據(jù)記錄器和事件記錄器 通過 USB 2.0 數(shù)據(jù)端口,下載帶時間和日期標簽的
過程數(shù)據(jù)和報警狀態(tài)
控制 - PID 控制和時間比例控制。還包括同步時間間隔計時器和4項特殊的應用功能
數(shù)字通訊: HART® 和 Profibus® DP 通訊,具有全部特性和功能
產品特點艾默生56雙輸入分析儀是線路供電分析儀,提供單傳感器或雙傳感器輸入,且雙測量可任意組合。 56 型分析儀可測量 pH 值、ORP、ISE、電導率、氯、溶解氧和氣態(tài)氧、溶解臭氧、溫度、濁度或流量,并將接受 4-20mA 電流輸入。設備的供電電源為 24VDC 或 115/230AC( 自動切換)。HART 數(shù)字通訊是標準功能。
艾默生56雙輸入分析儀支持 Rosemount Analytical 的智能pH 傳感器。所有組態(tài)均滿足通用場所的 UL 認證要求。
應用領域特殊功能
全彩顯示器: 高分辨率的全彩顯示器(480 x 272 像素)
就地操作員接口: 屏幕與計算機相似,便于查找本機組態(tài)和日常標定。
診斷:連續(xù)監(jiān)測分析儀和傳感器回路,了解故障和警告狀態(tài)。
數(shù)據(jù)記錄器: 連續(xù) 30 天每 30 秒記錄一次兩個通道的數(shù)據(jù)以及溫度
事件記錄器審計跟蹤:最多可記錄 300 個重要事件
PID 控制:比例、積分和微分設置,最多可提供 4 個模擬電流輸出,用于連續(xù)調整控制設備
實時時鐘: 將時間/日期標簽施加到所有過程數(shù)據(jù)和事件上
USB 數(shù)據(jù)端口:傳輸本機的全部過程數(shù)據(jù)和事件,以便在計算機上對其進行評估
計時器功能:時間比例控制,具有間隔計時器和 4 個特殊應用計時器:排放和注入、天數(shù)和時間間隔計時器、延遲計時器和流量積算器。
安全訪問:雙重密碼訪問
診斷: 連續(xù)監(jiān)測和記錄分析儀和傳感器的故障狀態(tài)
準無線裝備: HART 信號可通過無線 THUM 適配器,在人員難以到達的位置,進行過程變量和診斷信息的無線傳輸。
參數(shù)規(guī)格外殼:聚碳酸酯
尺寸:6.2 x 6.2 x 5.2 英寸(157 x 157 x 132 毫米)
進線孔: 接受 (6) 個 PG13.5 或 1/2 英寸穿線管接頭
顯示器:3.75 x 2.2 英寸(95.3 x 55.9 毫米)大尺寸、高分辨率顯示器
艾默生56雙輸入分析儀彩色 LCD 以大數(shù)字顯示過程變量,診斷參數(shù)的顯示由用戶定義。標定、編程和信息屏幕以清晰、易讀的字符顯示。彩色顯示器具有背光,且背光亮度用戶可調。測量值字符高度:(0.5 英寸)13 毫米。主顯示區(qū)都可以定制,以滿足用戶的需求。
環(huán)境溫度和濕度:-10 至 60°C(14 至 140°F),相對濕度 5-95%(無冷凝)。僅濁度:0-55°C(32-131°F)相對濕度 5-95%(無冷凝)。
注:低于
-5°C (23°F) 及高于 55°C (131°F) 時,可能出現(xiàn)顯示器響應變慢或性能下降的情況。超過 60°C 時,以下部件將逐漸自動關閉:顯示器、USB 通信端口、電流輸出、報警繼電器、主電路板。
警告:如果環(huán)境溫度超過 60°C,請務必移除 USB 存儲設備。在易燃環(huán)境中,請勿使用 USB 端口。
存儲溫度: -20 至 60ºC(-4 至 140°F)
電源:
代碼 -02: 20-30VDC,20W
代碼 –03: 85-264VAC,47.5-65.0Hz,20W
實時時鐘備份:24 小時。
RFI/EMI:– EN-61326
LVD:– EN-61010-1
56 型危險場所認證
CSA 選項:-02、03、20、21、22、24、25、26、27、30、31、32、
34、35、36、37、38、HT 和 DP。
I 類,2 區(qū),A、B、C 和 D 組
Il 類,2 區(qū),E、F 和 G 組
Ill 類 T4A Tamb = 50°C
已根據(jù) ANSI/UL 標準評估。CSA 標志旁邊的 “C” 和 “US” 標記
艾默生56雙輸入分析儀已根據(jù)分別適用于加拿大和美國的 CSA 和 ANSI/UL 標準評估
FM 選項:-02、03、20、21、22、23、24、25、26、27、30、31、32、33、34、35、36、37、38、HT 和 DP。
I 類,2 區(qū),A、B、C 和 D 組
Il 和 lll 類,2 區(qū),E、F 和 G 組
T4 Tamp = -10°C 至 60°C。
普通場所(僅適用于 -UL 訂購選項):
UL 選項:-02、03、20、21、22、24、25、26、27、30、31、32、
34、35、36、37、38、HT 和 DP。
海拔高度:最高可在 2000 米(6562 英尺)的高度使用
污染等級 2:通常只會出現(xiàn)非導電性
污染。不過,必須預見偶爾可能因冷凝引起暫時導電。
輸入:1個或2個隔離的傳感器輸入?蛇x擇測量
pH/ORP、電阻率/電導率/TDS、百分比濃度、
比電導率、總氯和余氯、一氯胺、溶解
氧、溶解臭氧、濁度、脈沖流、溫度和
原始 4-20mA 輸入。對于接觸電導率測量,
測溫熱電阻可以是 PT1000 RTD。其它測量(ORP、流量和濁度除外),可以使用 Pt100、Pt1000 RTD 或者 22k NTC(僅溶解氧)。
輸出:4 個有源供電的 4-20 mA 或 0-20 mA 隔離電流輸出。量程完全可調。最大負載:550 歐姆。輸出可針對
PID 控制進行編程?蓡⒂
輸出阻尼,時間常數(shù)范圍為 0-999 秒。輸出 1 上疊加的 HART 數(shù)字通訊是所有
儀器(選項代碼 –HT)的標準配置。
報警: 4 個報警繼電器,用于過程測量
和溫度。可針對任何測量值、
計時器、TPC 或故障報警操作(而不是過程警報),對任一繼電器進行編程。如果選擇,故障報警會在傳感器或分析儀發(fā)生故障時激活繼電器。每個繼電器可單獨配置。報警邏輯(高/低激活或 USP)和死區(qū)用戶可編程。
繼電器:C 型(轉換觸點)、SPDT、環(huán)氧樹脂密封
感應負載:1/8 HP 電機(最大),115/240VAC
額定終端連接
電源連接器(-02 24VDC 電源和 -03 85-264VAC
電源):24-12 AWG 線規(guī)。
信號板接線端子:26-16 AWG 線規(guī)。
電流輸出連接器: 26-16 AWG 線規(guī)。
報警繼電器接線端子: 24-12 AWG 線規(guī)。
重量/裝運重量: (以磅的整數(shù)或 0.5 公斤的倍數(shù)計算重量):
3 磅/4 磅(1.5 公斤/2.0 公斤)
ZTE launches PowerMaster ONE solutions
During the exhibition, ZTE energy solutions expert Huang Yuanhua published "Green & Magic Energy Box, ZTE New Generation Hybrid Solution-PowerMaster ONE keynote speech, the development trend of power supply based on hybrid communication energy, focusing on PowerMaster ONE scheme in solving the problem of the lack of electricity supply site area, through innovative design concepts and technologies to help clients achieve the maximum value of interest, especially in the background of telecom operators gradually sell assets to PASSIVE infrastructure operators, PowerMaster ONE scheme can meet the site from a single user power supply to the power supply smooth expansion and upgrading, effectively avoid the unique advantage of customers' investment losses.中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜
ZTE energy solutions expert Li Weibo published on the theme of "An Innovative Energy Management the System for Telecom Energy Network", showing the energy management scheme for iEnergy networks based on cloud technology, presents ZTE energy products in the field of network energy management中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜rgy industry, ZTE is continuously innovating in the energy field, and is committed to continuously introducing products and programs that satisfy customers. There are many market application cases in the world.
“蓄電池備電+移動油機應急發(fā)電”是有市電區(qū)域最基本的基站后備動力保障配置方案。對于頻繁需要上站應急發(fā)電的基站疊加小功率太陽能系統(tǒng),可大幅降低應急發(fā)電成本,并持續(xù)獲得電費節(jié)省,投資回報周期小于3年。傳統(tǒng)疊光方案存在太陽能利用不充分、影響電池充電管理等問題,采用兼容太陽能輸入的開關電源系統(tǒng)疊光,可以低成本實現(xiàn)高收益。支持疊光的
通信電源系統(tǒng)有利于在運維期間動態(tài)調整配置,針對應急發(fā)電上站次數(shù)較多的基站實施疊光,能最小化疊光投資,在提高動力保障的同時長期節(jié)省電費和應急發(fā)電成本。
一、電池和應急發(fā)電問題多,成為斷站因素
隨著互聯(lián)網快速發(fā)展,人們生活已經離不開網絡,需要無處不在的移動寬帶。基站穩(wěn)定運行是通信網絡高可用的基礎,由于停電不可避免,基站需要有合理的后備動力保障方案。蓄電池+移動油機是最常用的后備動力保障方式,停電時由蓄電池支持基站工作,當蓄電池容量不足時,調派移動油機上站發(fā)電,保障基站運行不中斷。
由于居民對噪聲的普遍反對,以及站點所在建筑物出入管理原因,實際上城市站點很難上站應急發(fā)電;農村站點發(fā)電距離遠、高山站上站困難,應急發(fā)電保障度困難。通過對基站通信中斷原因分析,平均57%網絡中斷與基站配套相關,停電是引起網絡中斷的要因。
以某市某運營商3453個站點為例,高山站無法應急發(fā)電的有195個,業(yè)主原因經常無法上站發(fā)電的有2004個,無法用移動油機保障的站點占比高達64%。該運營商單月停電2771站次,由于停電原因發(fā)生斷站1923次,停電斷站率高達69%。停電斷站涉及1322站點,平均每站斷站時長高達2.1小時。應急發(fā)電次數(shù)802次,停電發(fā)電比例29%,其中包括40次應急發(fā)電不及時導致基站運行中斷。由此可見,停電后不能應急發(fā)電或應急發(fā)電不及時是造成通信網絡中斷的因素。
二、蓄電池+移動油機,后備動力保障成本很高
在基站容量一定的條件下,蓄電池容量取決于后備時長要求,后備時長必須大于應急發(fā)電上站時間,并留有足夠的余量。對于頻繁停電的基站,如果具備小型固定油機安裝條件,可安裝固定油機,不具備固定油機安裝條件的基站,適當增配電池,如郊縣、農村、山區(qū)備電時長可分別增至5、7、10小時。對于通信負載平均功率為2kW的站點,備電7小時需要配置一組500Ah蓄電池,電池成本很高。移動油機作為應急保障電源,停電時安排發(fā)電人員上站發(fā)電,即使應急發(fā)電人員尚未到達站點時市電已恢復,也需要支付應急發(fā)電費用。
應急發(fā)電成本包括上站人工費用、發(fā)電油費、移動油機攤銷成本。上站人工費用與當?shù)貏趧恿Τ杀鞠嚓P,一般在300元/次左右;發(fā)電燃油成本與發(fā)電時長、耗油率相關,一般平均每次發(fā)電消耗50元左右燃油;移動油機攤銷成本包括油機折舊、油機維護成本分攤,平均每次發(fā)電分攤30元左右。農村站點是停電高發(fā)區(qū)域,平均月上站次數(shù)可能超過一次,按應急發(fā)電成本每次380元計,如果每月發(fā)電一次,每年單站應急發(fā)電成本4560元,發(fā)電成本很高。
減少停電斷站、提高通信網絡質量是通信動力系統(tǒng)建設與維護的要務。不論是增配蓄電池延長備電時長、提高應急上站發(fā)電次數(shù)、安裝固定油機等,都可以降低停電斷站率,提高通信網絡質量。由于蓄電池成本很高,增加1小時備電時長平均每站每年需要投入400元左右;每增加1次應急上站發(fā)電需增加380元左右;安裝固定油機一次性投入成本很高。不論是電信運營商還是鐵塔運營商,都需要有以較低成本提高保障質量的解決方案。
三、站點疊光,低成本提高供電質量、降低運維成本中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜
站點疊光方案,指在站點電源基礎上疊加太陽能,安裝僅滿足通信負載功率需求的太陽能電池板,優(yōu)先使用太陽能供電的方案。太陽能是可再生能源典型代表,疊加太陽能可降低站點電費。例如,對于平均直流負載功率為2kW的站點,假設日照時數(shù)為4小時(全國省會城市貴陽最低2.84小時、拉薩最高6.7小時,一半以上超過4小時),采用疊光方案可年省電2920度,需要安裝約2.5kWp的太陽能電池板?蛻舨少徧柲茈姵匕濉⑻柲苣K及其安裝服務成本為22000元,如果電價為1元/度,則疊光方案的投資回報周期為7.5年左右,決策投資相對困難。
疊光后,如果基站停電發(fā)生在有日照的時段,可以不需要應急發(fā)電。由于深夜通信業(yè)務較少、夜晚上站發(fā)電相對危險等因素,實際很少夜間發(fā)電。此外,由于移動油機普遍不防雨且室內發(fā)電危險,雨天一般也不發(fā)電。因此,應急發(fā)電多在沒有下雨的白天進行,該時間段太陽能可用概率很高,即使陰天太陽能發(fā)電量很少,也可延長電池備電時長。經過測算,采用疊光方案的站點,可以減少80%以上上站應急發(fā)電成本,并降低由于應急發(fā)電不及時帶來的斷站風險。
例如,某市某運營商共432個基站,2014年12月份發(fā)電77次,只有一次為夜間發(fā)電,發(fā)電次數(shù)TOP 10基站平均發(fā)電15.64小時,平均發(fā)電次數(shù)3.8次,最長一次發(fā)電時長僅5.42小時,發(fā)電時長相對平均。在相同應急保障條件下,對于應急發(fā)電TOP 10站點具備安裝太陽能電池板條件的,可采用疊光措施,假定減少應急發(fā)電次數(shù)比例為80%,單站一個月可以節(jié)省上站費用1155元。由于12月份并非停電高峰,評估單站一年可節(jié)省1.4萬元以上發(fā)電費用,遠比省電價值更大,投資回報周期僅1.3年左右。如果批量采用疊光方案,還可能獲得國家和地方政府財政補貼,如浙江省對于太陽能發(fā)電量每度補貼0.42元,可以進一步降低投資回報周期。由于應急發(fā)電成本以人工費用為主,人工費用呈長期上升趨勢,隨著應用時間的增加,疊光方案回報越來越高。
3~5年是合理的投資回報周期,按示例,疊光方案總投資2.2萬元,只要每年節(jié)省超過4400元,就值得投資。一個2kW站點年省電按2920元計,只需要能年節(jié)省1480元應急發(fā)電費用即可滿足5年投資回報要求。按每次發(fā)電成本380元計,對于年上站應急發(fā)電需求4次以上的站點,都值得投資疊光方案。如果太陽能發(fā)電可獲得補貼,如0.42元/度,每年補貼1226元,加之站點都或多或少存在應急發(fā)電需求,對所有具備安裝太陽能條件的站點普遍疊光,會具備非常好的投資回報。一個單運營商2G/4G站點或兩個運營商單制式共享站典型負載平均功率接近2kW,可配置一個3kW太陽能模塊和9×250Wp太陽能電池板,只需要凈占地面積13平米。當安裝面積不足時,可以欠配安裝,如只安裝1.5kW太陽能電池板,停電時不足的功率由電池補充,使原來只能備電3小時的站點(300Ah電池)在陽光較好時備電時長延長至12小時以上,同樣能大幅減少應急發(fā)電次數(shù)。
四、傳統(tǒng)疊光方案,電池管理風險需要謹慎控制
傳統(tǒng)疊光方案指在站點內增加一套獨立的太陽能系統(tǒng),太陽能模塊輸出的直流電直接與存量開關電源直流輸出并聯(lián),太陽能系統(tǒng)與開關電源互相獨立。由于需要優(yōu)先使用太陽能,太陽能系統(tǒng)輸出的開路電壓應高于開關電源。對于傳統(tǒng)疊光方案來說,太陽能系統(tǒng)輸出電壓設置非常關鍵,不合適的設置會導致部分甚至全部太陽能被浪費。當開關電源或太陽能系統(tǒng)電壓測量電路出現(xiàn)偏差時,也可能發(fā)生同樣的結果。此外,開關電源均充時,由于電源輸出電壓更高,這段時間內太陽能無法被利用。
開關電源具備蓄電池管理功能,能限制最大充電電流以保護蓄電池使用壽命。當太陽能系統(tǒng)輸出電壓高于設置值時,過高的電壓使電池過充。由于疊加的太陽能功率大于負載功率是常態(tài),在蓄電池需要充電時,多余的太陽能功率也會對電池進行充電,使電池充電電流大于開關電源設定的充電限流值,蓄電池實際充電電流與開關電源系統(tǒng)測量值不一致,不利于蓄電池充電管理。
開關電源都有溫度補償功能,電池溫度補償范圍為±2V,由于開關電源溫度補償功能無法與太陽能系統(tǒng)關聯(lián),溫度降低時電源浮充電壓升高,導致太陽能浪費,而溫度升高時太陽能輸出電壓不變,使電池加速充電失水。如果取消開關電源溫度補償功能,太陽能可以得到充分應用,但會影響蓄電池使用壽命。
為了充分利用太陽能,保護電池壽命,對于傳統(tǒng)疊光方案需要準確配置太陽能電池板數(shù)量,謹慎設置太陽能系統(tǒng)和開關電源電壓,并取消電池溫度補償功能,在溫度變化不大的室內站點使用。
五、電源兼容太陽能,消除電池管理風險
隨著電力電子技術與數(shù)字信息技術融合發(fā)展,電源模塊控制芯片內含軟件和算法,使硬件功能可由軟件定義,稱為軟電源(SDP,Software Defined Power),可以很方便地實現(xiàn)不同功能模塊兼容。太陽能模塊與整流模塊兼容就是典型的軟電源特性,采用兼容太陽能的開關電源系統(tǒng),就能在任何合適的站點在電源模塊位置插入太陽能模塊,不需要采購獨立的太陽能控制系統(tǒng),除了太陽能電池板采購及安裝費用外,只需要從開關電源廠家購買一個太陽能模塊即可。
由于太陽能模塊與整流模塊兼容,通過同一個監(jiān)控模塊控制,不論太陽能功率大小,也不論蓄電池需求電壓高或低,都會優(yōu)先調度使用太陽能,使太陽能全部得到利用。太陽能模塊和整流模塊的輸出電壓統(tǒng)一控制,并與中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜電池溫度補償同步,蓄電池充放電管理功能完全不受影響。山西鐵塔聯(lián)合華為試點MTS站點電源疊光,疊光工程量就是安裝太陽能電池板的工作量,系統(tǒng)不需要調試就成功投產。因此,部署站點時宜優(yōu)選支持疊光功能的電源系統(tǒng),引導全行業(yè)電源向多功能兼容方向發(fā)展。對于存量宜疊光站點,如果存量電源不是高效電源且無法直接替換高效模塊,優(yōu)先采用多功能高效電源改造。
六、應急發(fā)電TOP N管理,實現(xiàn)低成本疊光
由于站點規(guī)劃建設時很難預測未來應急發(fā)電情況,對于投產后的站點可以采用基于短板改進的應急發(fā)電次數(shù)TOP N管理手段,通過站點網管系統(tǒng)對應急發(fā)電次數(shù)進行統(tǒng)計,選擇應急發(fā)電次數(shù)多、合適安裝太陽能電池板的站點進行疊光,可以實現(xiàn)精準配置,最小化疊光成本。如山西試點的疊光站點就是停電次數(shù)較多的站點,經測算,站點疊光年收益高達2.1萬元/年,非?捎^。
如果全面采用支持疊光的電源系統(tǒng),定期對區(qū)域內基站應急發(fā)電次數(shù)TOP N站點進行疊光、疊油(不具備安裝太陽能條件,但可安裝固定油機的)、疊電(對于不能疊光、疊油的站點,可直接增配新電池或鋰電池)等手段優(yōu)化,逐漸消滅需要頻繁應急發(fā)電的站點,大幅度減少應急發(fā)電上站次數(shù),降低應急發(fā)電成本,并在節(jié)能的同時提高基站可靠性。到目前為止,疊光是以較低成本實現(xiàn)站點供電高保障的首選方案。
"Battery preparation +
mobile oil engine emergency power generation" is the most basic backup power support configuration of base station in the city. For the base stations that frequently need to go to the station for emergency power generation, the small power solar system can be superimposed, and the cost of emergency power generation can be greatly reduced, and the electricity cost will be continuously saved. The investment return cycle is less than 3 years. Traditional stacking scheme has many problems, such as inadequate solar energy utilization and influence on battery charging management. The switching power supply system compatible with solar input can achieve high cost at low cost. The communication power supply system supporting stacking light is conducive to dynamically adjusting the configuration during operation and maintenance. It can reduce the cost of light investment for the base stations which are more frequent on the basis of emergency power generation, and minimize power overlay investment. At the same time, it can save electricity and emergency power generation cost at the same time.
One, battery and emergency power generation problem, become the first factor of fault station
With the rapid development of the Internet, people can not live without the network, and it needs ubiquitous mobile broadband. The stable operation of the base station is the foundation of the high availability of the communication network. Because of the inevitable blackout, the base station needs a reasonable backup power support scheme. Battery + mobile oil machine is the most commonly used backup power support mode. When the power fails, the battery will support the base station. When the battery capacity is insufficient, the mobile oil station will be dispatched to the station to generate electricity, so that the base station will run without interruption.
Because of the widespread opposition to noise and the reasons for the access and management of buildings in the site, it is very difficult for the urban station to go to the station for emergency power generation. The rural station is far away from the power station, and the station on the high m中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜ountain station is difficult, and the emergency generation support is difficult. Through the analysis of the reason for the interruption of the base station communication, the average 57% network interruption is related to the base station, and the blackout is the first cause of the network interruption.
Take 3453 operators of a certain city as an example, there are 195 stations that can't generate electricity by emergency at Gaoshan station, and 2004 of them cannot afford to go to station because of owners' reasons. The proportion of stations that cannot be protected by mobile oil machine is 64%. The operator single month outage 2771 times, due to power outages cause broken station 1923 times, power station fault rate is as high as 69%. The blackout station involves 1322 stations, and the average height of each station is up to 2.1 hours. Emergency power generation 802 times, power generation ratio of 29%, including 40 emergency power generation is not timely lead to the base station operation interruption. So it can be seen that the failure of emergency power generation or emergency power generation after blackout is the first factor that causes the interruption of the communication network.
Two. Battery + mobile oil machine, the cost of backup power is very high
Under the condition of certain capacity of the base station, the capacity of the battery depends on the reserve time requirement, and the reserve time must be larger than the emergency power generation time, leaving enough margin. The base station for the frequent power outages, if you have a small fixed oil machine installation conditions, can be installed and fixed oil machine, do not have the conditions of fixed base station installation of machine oil, properly equipped with batteries, such as suburban, rural and mountainous areas by time can be increased to 5, 7, 10 hours. For a station with an average power of 2kW for the communication load, a set of 500Ah batteries should be configured for 7 hours, and the cost of the battery is very high. The mobile oil as an emergency power supply, when the power is cut off, the generator will be sent to the station to generate electricity. Even if the emergency generator has not arrived at the site, the electricity has been recovered, and the emergency power generation cost should be paid.
The cost of emergency power generation includes the labor cost of the station, the cost of power generation oil, and the amortization cost of the mobile oil machine. On labor costs associated with local labor costs, generally about 300 yuan / times; the cost of fuel and power generation time, fuel consumption rate, the average power consumption per 50 yuan fuel; mobile oil machine including machine depreciation, amortization cost of oil and oil machine maintenance costs, the average power allocation of 30 yuan. The rural station is a high power failure area. The number of stations on average may exceed one time per month. According to the emergency power generation cost, 380 yuan per time. If the electricity is generated once a month, the annual single station emergency power generation cost is 4560 yuan, and the cost of generating electricity is very high.
中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜the high cost of battery, the increase of 1 hours, the average power consumption time is about 400 yuan per station per year. For every 1 increase, the power generation for emergency stations needs to increase by about 380 yuan, and the cost of installing fixed oil units is high. Both telecom operators and tower operators need solutions to improve the quality of the guarantee at a lower cost.
Three, site stacking, low cost to improve the quality of power supply and reduce operation and maintenance costs
The site overlay scheme refers to the solar panels that are installed on the site power supply and only meet the power demand of communication load. Solar energy is a typical representative of renewable energy, and the superposition of solar energy can reduce the electricity cost of the site. For example, the average DC load power for the 2kW site, assuming the sunshine hours for 4 hours (the capital city of Guiyang, Lhasa's highest minimum 2.84 hours 6.7 hours, more than half of more than 4 hours), the scheme can stack light annual saving 2920, need to install about 2.5kWp solar panel. The cost of customer purchasing solar panels, solar modules and installation services is 22000 yuan. If the electricity price is 1 yuan / degree, the investment return period of the scheme is about 7.5 years, making investment decisions relatively difficult.
After stack light, if the base station blackout occurs in the period of sunshine, there is no need for emergency power generation. Because of the low night communication service, the night is on the station。
數(shù)據(jù)中心是我國實施“互聯(lián)網+”的重要基礎設施載體。相關統(tǒng)計顯示,截至2014年年底全國共規(guī)劃建設數(shù)據(jù)中心310個,已投入使用230個,其中約有三分之一為大型數(shù)據(jù)中心。另據(jù)數(shù)據(jù)中心產業(yè)聯(lián)盟發(fā)布的《數(shù)據(jù)中心產業(yè)發(fā)展白皮書》顯示,2011~2016年我國數(shù)據(jù)中心總投資將超過1萬億元。其中高低壓供配電、不間斷電源、制冷系統(tǒng)等配套設施造價在基礎設施造價中所占比例約75%~80%。
大型數(shù)據(jù)中心建設熱潮來襲。然而,在大型數(shù)據(jù)中心的運營中,巨大的配電成本支出正在對運營商形成挑戰(zhàn),同時配電單元往往占用大量面積,不利于數(shù)據(jù)中心的節(jié)能環(huán)保。因此,如何能夠在保證數(shù)據(jù)中心穩(wěn)定運行的情況下,實現(xiàn)配電系統(tǒng)的革新,顯著降低配電成本成為業(yè)界關注的問題。正是在這一趨勢下,中壓型UPS開始興起。中壓型UPS能夠提高接近負荷中心的電壓等級,減少低壓配電環(huán)節(jié),降低能耗?梢灶A見,隨著電信行業(yè)去電信化、減配增效的深入推進,中壓UP中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜S系統(tǒng)將迎來廣闊的市場前景。
大型數(shù)據(jù)中心低壓配電系統(tǒng)亟待革新
我國早期通信系統(tǒng)負有政治安全責任,通信網絡一旦中斷將追究相關方政治責任,所以我國通信系統(tǒng)中冗余配置較高,這從早期UPS和開關電源蓄電池組后備時間的不一致可見一斑。所以,在建設數(shù)據(jù)中心的供電系統(tǒng)時,為了保證系統(tǒng)安全可靠性,充分考慮設備配置和冗余。
目前大型數(shù)據(jù)中心園區(qū)或大型數(shù)據(jù)中心的供配電結構一般是引市電高壓(110kV)或中壓(35kV、10kV)到高壓配電室然后再分配給干式變壓器(轉成380V)并配置成套低壓配電系統(tǒng),成套低壓配電系統(tǒng)中的饋電柜再通過密集母線或電纜分配電能到每個樓層的低壓配電柜,再分配到大型的UPS(如500kVA、600kVA),目前每套低壓配電系統(tǒng)一般最大配置到2000kVA,每套低壓系統(tǒng)最多帶兩套大容量的1+1型UPS系統(tǒng)或2N型UPS系統(tǒng),這種從高壓配電系統(tǒng)-低壓配電系統(tǒng)-UPS的結構在早期中小型數(shù)據(jù)中心應用廣泛,但隨著數(shù)據(jù)中心單UPS系統(tǒng)配電容量的加大,這種配電結構存在諸多缺陷。
,投資浪費嚴重。單套低壓配電系統(tǒng)存在浪費投資、浪費機房空間、浪費密集母線等浪費現(xiàn)象。雖然也可以將變壓器配置在每個樓層,但是供配電結構沒有變化,隨著大型UPS的使用,每套2000kVA的低壓配電系統(tǒng)下掛2套600kVA(1+1)考慮充電電流及負載冗余后即滿。
第二,增加供配電等級,增加了安全隱患。在相同的電源器件環(huán)境中,對于配電系統(tǒng)來說上下游開關越少越安全,配電等級越少可靠性越高,接近負荷中心的電壓等級越高越節(jié)能。大型數(shù)據(jù)中心園區(qū)35kV開關站-10kV高壓配電柜-10kV配電柜-變壓器-低壓配電柜-密集母線-樓層配電柜-UPS系統(tǒng),8層級的配電結構,每多1個層級則意味著增加一個故障隱患點。
第三,影響機房可使用面積,增加建筑成本。對于大型數(shù)據(jù)中心,如果每層樓均配置變壓器低壓配電室、UPS系統(tǒng)電源室,相應電源區(qū)域要預留40%以上的空間,對于通信機房來說,一般預留25%~30%空間,且低壓配電結構冗余度越大占機房面積越大。
中壓型一體化UPS正在興起
回顧通信領域的高低壓配電發(fā)展趨勢,交流系統(tǒng)從早期的380V到中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜10kV,不間斷電源從220V到240V、336V高壓直流,設備功耗密集程度越大配電系統(tǒng)的電壓等級也隨之上升,采用高壓等級的設備可以更多地減少線損、線纜母線投資、節(jié)省設備占地面積、減少轉換次數(shù)也意味著節(jié)能,同樣,改變傳統(tǒng)的380V進380V出220V配電的結構,提高UPS進入電壓等級至10kV以上也具備以上優(yōu)點。使用如10kV的UPS的前提是將傳統(tǒng)低壓配點系統(tǒng)的計量功能、功率補償功能、低壓發(fā)電機組轉移到10kV系統(tǒng)。
低壓配電中的計量可采用高壓端計量。傳統(tǒng)數(shù)據(jù)中心往往是通過在低壓段低壓配電系統(tǒng)中配置計量柜的方式,但是隨著數(shù)據(jù)中心規(guī)模越來越大,大型數(shù)據(jù)中心已有10套以上的低壓配電系統(tǒng),且分為生活用電、辦公用電等,統(tǒng)計量工作放在高壓將成為一種趨勢。采用高壓端計量的同時仍可以通過中壓型一體化UPS的變壓器的數(shù)據(jù)采集進行自動統(tǒng)計上報。
低壓配電中的補償功能可改為高壓補償和負荷中心就近補償。對于數(shù)據(jù)中心來說,感性負載和容性負載同時存在,感性負載主要為空調主機、風機等電機類設備;整流設備、IT設備為容性負載;也就說數(shù)據(jù)中心感性負載和容性負載是同時存在的,是相互補充的。統(tǒng)計顯示,目前大部分通信局樓的低壓電容器柜多設置為人工投入,因為由于感性負載和容性負載的同時存在,功率因數(shù)cosΦ通常都在0.92以上。采取在低壓配電系統(tǒng)進行補償屬于后補償,沒有起到有效作用,且在諧波環(huán)境下容易引發(fā)電容器共振并存在爆炸風險。因此未來的數(shù)據(jù)中心應針對具體機房環(huán)境測試其諧波和無功負荷情況進行就近補償。
大型數(shù)據(jù)中心采用高壓油機是必然趨勢。目前大型、超大型數(shù)據(jù)中心已推廣采用高壓油機,帶來很多優(yōu)勢:電纜、上下游開關配置方面,簡化了配電結構,高壓油機使用高壓電纜傳輸電力,高壓輸電電流相當于低壓輸電電流的二十六分之一,上下游開關及電纜投資節(jié)省、敷設及施工方便、線損很小、安全性也較高;便于進行多機并機,形成大容量后備電源,消除了常壓油機系統(tǒng)面臨的輸出容量瓶頸;若采用高壓空調必須采用高壓油機,離心機組啟動電流較大,如國內某運營商集團企業(yè)標準規(guī)定“除變頻供電的電動機外,單臺額定功率大于350kW 的電動機,宜采用10kV 電源供電”。采用高壓冷水機組供電后,可以相應減少變壓器及低配和密集母線、電纜的投資,綜合對比高壓冷水機組的價格因素,初步統(tǒng)計可以節(jié)省0.075萬元/kW(制冷量);高壓油機集中布置,可以根據(jù)園區(qū)功耗發(fā)展情況分期、逐臺投資,而低壓油機則只能是與低配模塊化相匹配而無論油機的實際負載率,造成油機投資浪費;推廣使用高壓油機之后低壓配電系統(tǒng)中的ATS柜可以減配。
以上分析證明,低壓配電系統(tǒng)中的主要功能,計量、電容、ATS柜等都可以代替,實施高壓到負荷中心的二級轉換比再經過低壓側顯然可以節(jié)省更多成本,減少中間配電環(huán)節(jié)后也使得可靠性提高很多。
國外中壓UPS系統(tǒng)應用現(xiàn)狀
從歐洲地區(qū)的中壓UPS系統(tǒng)發(fā)展來看,中壓UPS系統(tǒng)多應用在工業(yè)級不間斷電源應用場景中,擁有兆瓦級額定功率和高達99.5%的中壓UPS,儲能和逆變器依然處于低壓水平,它還能大幅簡化維護作業(yè)和降低系統(tǒng)成本。中壓UPS可進行改造,進行定制化設計,可兼容各種各樣的儲能裝置,具體取決于所需的保護時間。超級電容器和飛輪可在幾秒鐘內提供高密度保護,而電池可以達到長達15分鐘的備用時間。
北美地區(qū)早期工業(yè)用中壓型UPS系統(tǒng)多為集裝箱式結構或露天箱體結構。數(shù)據(jù)中心使用的中壓型UPS系統(tǒng)多為戶內型、模塊化結構,容量為2.0MW~20MW。包括輸入輸出開關柜、變壓器箱、主控單元、PES柜(中壓)、雙向變流器、儲能箱等。戶外型儲能箱后備時間為1~3分鐘,戶內型后備時間根據(jù)客戶需求配置,可以達到30分鐘以上。
可以看到,國外已有類似產品,但是國外的中壓UPS較多定位于將UPS系統(tǒng)功能集中于中壓段解決,目前已在美國的部分大型數(shù)據(jù)中心開始應用。
尤為值得一提的是,相比傳統(tǒng)低壓UPS,中低壓一體化UPS在同樣的場景下將減少80%的投資成本,而之所以能夠帶來這一“不可思議”的改變,則主要得益于大幅減少了傳統(tǒng)低壓配電柜的占地面積,節(jié)省了大量的低壓配電母線、電纜,同時發(fā)電機組采用高壓油機也便于分期投資。可以預見,中壓UPS系統(tǒng)的建設將為運營商節(jié)省大量的供配電成本,進一步提升運營商的市場競爭力。
The data center is the implementation of the "critical infrastructure support Internet plus" in china. Statistics show that as of the end of 2014, 310 data centers were planned and built in China, and 230 of them had been put into operation, of which about 1/3 were large data centers. According to the data center industrial development white paper published by the data center industry alliance, the total investment of China's data center will exceed 1 trillion yuan in 2011~2016. The cost of high and low voltage supply and distribution, uninterrupted power supply, refrigeration system and other supporting facilities is about 75%~80% in the cost of infrastructure.
Large data center construction upsurge is coming. However, in the operation of large data centers, the huge distribution cost is challenging the operators. At the same time, the distribution units often occupy a large number of areas, which is not conducive to the energy saving and environmental protection of data centers. Therefore, how to ensure the stable operation of data center and realize the innovation of distribution system, significantly reduce the distribution cost has become the industry's concern. It is under this trend that medium voltage UPS is beginning to rise. The medium voltage UPS can improve the voltage level near the load center, reduce the low voltage distribution link and reduce the energy consumption. It is foreseeable that the medium voltage UPS system will usher in a broad market prospect as the telecom industry goes to the telecommunication industry, the reduction and the increase of efficiency.
The low voltage distribution system in large data center needs to be innovated urgently
China's early communication system bears the responsibility of political security. Once the interruption of communication network is concerned, the related party's political responsibilities will be investigated. So the redundancy allocation in China's communication system is relatively high, which is evident from the inconsistency between the early UPS and the reserve time of the switching power battery group. Therefore, in building the power supply system of the data center, in order to ensure the safety and reliability of the system, the configuration and redundancy of the equipment are fully considered.
The current power supply structure of large data center park or large data center is generally cited city electric pressure (110kV) or medium (35kV, 10kV) to the high voltage distribution room and then assigned to the dry-type transformer (to 380V) and the configuration of complete sets of low-voltage distribution system, complete sets of low-voltage distribution system cabinet system in the crowded bus cable or distribution of electric energy to low voltage power distribution cabinet on each floor, redistribution to large UPS (500kVA, 600kVA), the current at the low voltage distribution system general maximum configuration to 2000kVA, each with a maximum of two sets of low voltage system of large capacity 1+ 1 type UPS or type 2N UPS system, the structure of high voltage power distribution systems - from low voltage power distribution system -UPS in the early application of small data center, but with the increase of data center power distribution capacity of single UPS system, many defects of this distribution structure.
First, the waste of investment is serious. A single low voltage distribution system is wasteful of investment, waste of space, and waste of dense busbar. Although it is possible to transformer configuration on each floor, but no changes in the structure of power supply, with the use of large UPS, under the low voltage distribution system of each 2000kVA 2 600kVA (1+1) considering the charging current and the load is full of redundancy.
Second, increase the level of power supply and distribution, and increase the hidden danger of security. In the same power supply device environment, for the distribution system, the less the upstream and downstream switches are, the safer. The less the distribution level is, the higher the reliability. The higher the voltage level near the load center, the more energy saving. Large data center park 35kV switchgear, -10kV high voltage switchgear, -10kV distribution cabinet, transformer low voltage switchboard, dense busbar floor switchboard -UPS system, 8 tier power distribution structure, every 1 or more levels means adding a hidden danger point.
Third, it will affect the available area of the machine room and increase the cost of the building. For large data center, if every floor of the configuration of low-voltage distribution transformer chamber, UPS system power supply room, corresponding power area should set aside more than 40% space for communication room, usually reserved for the 25%~30% space, and the greater the redundancy structure of low voltage power distribution room for a larger area.
Medium voltage integrated UPS is on the rise
Review the development trend of high and low voltage power distribution communication field, AC system from 10kV to early 380V, uninterrupted power supply from 220V to 240V, 336V high voltage DC voltage, the greater the degree of power equipment intensive distribution system also increased, the voltage level of the equipment can reduce the line loss, more investment, save equipment floor bus cable area, reduce the number of transitions also means the same, energy saving, change the traditional 380V into 380V structure 220V distribution, improve the UPS into the voltage level to above 10kV have more advantages. The premise of using UPS such as 10kV is to transfer the metering function, power compensation function and low voltage generator to 10kV system.
中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜
High voltage end metering can be used in the measurement of low voltage distribution. The traditional data center is usually configured through metering cabinet at low pressure in the low voltage distribution system, but with the increasing scale of data center, large data center has more than 10 sets of low-voltage distribution system, and divided into electricity, electricity and other office work, statistics on the pressure will become a trend. At the same time, the data acquisition of the medium voltage integrated UPS transformer can be collected and reported automatically by the high voltage end measurement.
The compensation function in low voltage distribution can be changed to high voltage compensation and load center close compensation. For data centers, there is also the inductive and capacitive loads, inductive load mainly for air conditioner, fan motor equipment; rectification equipment, IT equipment for the capacitive load; also said data center of the inductive and capacitive loads exist at the same time, is complement each other. Statistics show that at present, most of the low voltage capacitor cabinet of the communication bureau building is set up。
“模范城市曼海姆(MOMA)”項目是由德國政府啟動的“未來能源系統(tǒng)”計劃的一部分。該項目通過在當?shù)仉娋W中部署先進的信息通信技術以及小型裝置,使消費者直接體驗可再生電能的波動使用特點。
MOMA電網將來自超過500個生產商供應的電力配送至曼海姆及毗鄰的德累斯頓市。電網本身兼作電力線寬帶系統(tǒng),連接了大量家用智能設備。該項目始于2010年,至今已有1000名居民參加,這些居民的家電都連接到這個“能源互聯(lián)網”中,并利用眾多的軟件工具監(jiān)控其電力使用和支出狀況。
MOMA首席執(zhí)行官英戈 勛伯格(Ingo Schoenberg)表示:“可再生能源最大的挑戰(zhàn)是,時而有風,時而陽光普照,但當你需要的時候它們并不一定可用。MOMA項目尋求供求平衡的方法,力求在高波動性的能源發(fā)電和智慧的能源消耗之間取得平衡,并同時提高效率。”
勛伯格說:“通過將稅費與電網容量相連接,鼓勵項目參與者在能源可用性高、價格低的時候用電。對于那些不愿意自己調節(jié)設置的用戶,MOMA甚至制定了‘節(jié)能管家’幫助用戶在能量充足、價格便宜的時段打開電器。項目的運行狀況表明,當消費者知悉能源的真實價格時,自然會改變使用方式。”
在知識和技術的武裝下,私人用戶節(jié)約了10%左右的能耗和15%的能源費用,而電力運營商能夠更好地管理網絡負載。MOMA項目的成果為制定彈性電價、建立同時承載智能電網和智能電表的單一通信平臺提供了立法的依據(jù)。
高品質通信網絡助力電網升級
MOMA項目采用的技術解決方案也為電力供應商提供了解決電力中斷并提高運營效率的新方法。在美國,風暴和“小動物”嚴重破壞電力供應,加州大學伯克利分校2004年的一項研究表明,美國每年由停電造成的損失達到800億美元。
田納西州的查塔努加電力委員會為分布在約1500平方公里的居民提供電力服務。根據(jù)伯克利大學的數(shù)據(jù)計算,每年停電會對其服務區(qū)域造成約1億美元的損失,但該電力委員會并不是一個典型的美國能源供應商。
2012年,在美國能源部“復蘇法案”的11550萬美元的資金刺激下,查塔努加電力委員會完成了高度自動化的智能電網升級工作,為電網配備了智能傳感器、開關和儀表。與MOMA項目一樣,其電網以高品質的通信網絡為基礎,查塔努加電力委員會選擇了光纖寬帶網絡承載消費者三網合一的服務。
電力委員會執(zhí)行副總裁大衛(wèi) 韋德(David Wade)表示:“這應該就是未來電網的樣子,美國還沒有其它公共事業(yè)能夠達到如此高的自動化水平。但是,一切都取決于通信能力,查塔努加的電網與光纖網絡無縫銜接,這使得查塔努加成為實現(xiàn)我們未來設想的最佳場所。”
現(xiàn)在,在查塔努加,如果一輛汽車撞到了電線桿,電力委員會的電網將會進行“自我修復”。電網中的1200個智能開關可以通過光纖網絡確定電路中斷的位置,并改道供電。2月12日,查塔努加遭遇了20年來最嚴重的暴風雪,4萬名居民的供電自動恢復,其他3.6萬名居民的供電在工程師的幫助下,3天之內恢復正常。
中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜
電力委員會估計,以前恢復這7.6萬名居民的供電需要8天的時間。2012年以來,該區(qū)域的斷電事件減少了50%~60%,每年為當?shù)販p少了5000萬美元的支出。電力委員會自身也大大節(jié)約了成本:在維修、資產管理、上門服務以及盜竊方面,節(jié)約的成本高達1050萬美元。
自動化解決方案創(chuàng)建更加智能的電網
最終用戶的偷電行為仍然讓電力供應商頭疼不已,嚴重影響了利潤的獲取。華為,一家來自中國的技術公司,針對電力供應面對的新挑戰(zhàn)設計了不同的解決方案,既包括大規(guī)模的網絡基礎設施項目,也包括專門處理偷電等局部問題的核心平臺。
據(jù)華為介紹,尼日利亞的消費者偷電狀況尤其嚴重,供電商一直無法找出問題的原因,到目前為止,無法收集到準確的能耗數(shù)據(jù)的用戶數(shù)量超過了80%。
為了解決這個問題,華為正準備在尼日利亞安裝一個覆蓋40萬本地家庭的自動抄表系統(tǒng),支持高速數(shù)據(jù)連接,同時部署新的傳感器和控制器。該系統(tǒng)部署完成后,客戶的電表將每15分鐘傳輸一次數(shù)據(jù)到當?shù)剡\營商,從而使運營商獲得實時的用電數(shù)據(jù)。
華為企業(yè)BG Marketing與解決方案銷售部總裁何達炳說:“該系統(tǒng)將有效提高電力公司的營業(yè)額和利潤。即時通信系統(tǒng)和可靠的電力基礎設施維護是電力高效生產和配送的關鍵。其可以實現(xiàn)早期預警、實時故障定位、自我修復和有效負載管理等功能。”
隨著中國經濟的崛起,城市的蓬勃發(fā)展給傳統(tǒng)電網帶來了極大壓力。珠海電力局要為珠海市、淇澳島、橫琴島和高欄島的822萬居民供電。面對著各種接入、可靠性、成本和容量問題,傳統(tǒng)的固定和無線技術已經無法滿足業(yè)務要求,珠海電力局迫切需要提高網絡的自動化水平。
對于珠海電力局而言,在其服務區(qū)域安裝光纖電纜過于昂貴復雜。因此,其選擇了成本相對較低、但速度與光纖相似的華為4G LTE無線集群系統(tǒng)。與傳統(tǒng)雙向無線通信系統(tǒng)一樣,華為eLTE無線集群解決方案為珠海電力局提供了專用無線網絡,從而實現(xiàn)配電自動化通信。
同樣,在中國東部沿海城市青島,華為改造了阻礙電力性能的老舊線路和不可靠的通信網絡。華為全光xPON解決方案具備高度自動化的特點,幫助青島供電公司有效管理分布式供電,并提高網絡可靠性。
華為表示,通過利用網絡中的智能終端對數(shù)據(jù)進行實時監(jiān)測,在數(shù)秒之內,就可以隔離故障線路,實現(xiàn)電網的自動修復,F(xiàn)在,青島供電公司每年停電時長減少了2.6小時,達到每戶1.1小時;每年電力損失下降了33.4兆千瓦時。
總而言之,為建立環(huán)境友好型社會,公用事業(yè)單位面臨著降低成本、優(yōu)化運營以及遵守更加嚴格的規(guī)定等方面的壓力。為應對這些挑戰(zhàn),華為等科技公司提供大量解決方案,從而創(chuàng)建更加智能的電網,最終提供更加環(huán)保的能源。
The "model city of Mannheim (MOMA) project by the German government launched the" future energy system is a part of the project ". By deploying advanced information and communication technology and small devices in the local power grid, the project directly enables consumers to experience the fluctuating characteristics of renewable energy.
MOMA grid will be from more than 500 manufacturers of power supply and distribution to the adjoining Dresden city of mannheim. The power grid itself is also a power line broadband system, which connects a large number of household intelligent equipment. The project began in 2010. Up to now, 1000 residents have participated. The household appliances are connected to the "energy Internet", and many software tools are used to monitor their electricity use and expenditure.中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜
Schoenberg, chief executive of MOMA, Ingo Schoenberg, said: "the biggest challenge of renewable energy is that sometimes it is windy and sunny. But when you need it, they are not always available. The MOMA project seeks a balanced supply and demand approach to achieve a balance between high volatility energy generation and intelligent energy consumption, and increase efficiency. "
"By connecting tax and electricity to power grid capacity," Schoenberg said, "project participants are encouraged to use electricity when they have high energy availability and low prices. For users who don't want to adjust their settings, MOMA even set up an energy-saving housekeeper to help users turn on electrical appliances at the time of energy sufficiency and cheap price. The operation of the project shows that when the consumer knows the real price of the energy, it will naturally change the way of use. "
Under the arming of knowledge and technology, private users save about 10% of energy consumption and 15% of energy costs, while electric power providers can better manage network load. The results of the MOMA project provide a legislative basis for the establishment of elastic electricity price, the establishment of a single communication platform carrying smart grid and intelligent electric meter.
High quality communication network upgrade power grid upgrading
The technical solutions adopted by the MOMA project also provide a new way for power suppliers to resolve power interruptions and improve operational efficiency. In the United States, storms and small animals seriously disrupt the power supply. A 2004 study by University of California at Berkeley showed that the annual loss caused by power cuts in the United States amounted to 80 billion dollars.
The Char Thanou Fagafaga Electric Power Commission in Tennessee provides electricity for residents of about 1500 square kilometers. According to the data from Berkeley University, the annual blackouts will cause about 100 million US dollars loss to the service area, but the Electric Power Commission is not a typical US energy supplier.
In 2012, under the stimulus of the US $115 million 500 thousand recovery program of the energy department, the Char Thanou Fagafaga Electric Power Commission completed highly automated upgrading of smart grid, which equipped smart sensors, switches and meters for the power grid. Like MOMA project, its power grid is based on high quality communication network. Char Thanou Fagafaga Electric Power Commission has chosen optical broadband network to load consumers' three networks in one service.
David Wade, executive vice president of the Electric Power Commission, said: "this should be the way of the future grid. No other utilities in the US can achieve such high automation level in the future." Wade said. But everything depends on communication capability. Char Thanou Fagafaga's power grid and optical fiber network seamlessly connect, which makes Char Thanou Fagafaga the best place to achieve our future vision.
Now, in Char Thanou Fagafaga, if a car hits a pole, the power Com中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜mittee's power grid will be "self repairing". 1200 smart switches in the power grid can determine the location of the interruption by the optical fiber network and switch to the power supply. In February 12th, Char Thanou Fagafaga suffered the most severe snowstorm in 20 years. The power supply of 40 thousand residents recovered automatically, and the power of 36 thousand other residents was restored to normal within 3 days with the help of engineers.
The Power Commission estimates that the restoration of electricity from the 76 thousand residents will take 8 days. Since 2012, power outages in the region have been reduced by 50%~60% and $50 million a year for local expenditure. The Power Commission itself has also greatly saved costs: the cost of saving up to $10 million 500 thousand in maintenance, asset management, door-to-door services and theft.
Automated solutions create more intelligent power grids
The end user's electricity theft still makes the power suppliers headache, seriously affecting the gain of profits. HUAWEI, a technology company from China, designed different solutions for the new challenges faced by the power supply, including large-scale network infrastructure projects, including the core platform for dealing with local issues such as stealing electricity.
According to HUAWEI, the situation of consumers stealing electricity in Nigeria is particularly serious. Power providers have been unable to find out the cause of the problem. Up to now, the number of users who can not collect accurate energy consumption data has exceeded 80%.
To solve this problem, HUAWEI is preparing to install an automatic meter reading system covering 400 thousand local families in Nigeria, which supports high-speed data connection, and deploys new sensors and controllers at the same time. After the system is deployed, the customer's meter will transmit data every 15 minutes to the local operator, enabling the operator to obtain real-time data on electricity.中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜
"The system will effectively improve the turnover and profit of the power company," said He Dabing, President of HUAWEI BG Marketing and the Sales Department of the solution. The key to efficient power production and distribution is the instant communication system and the reliable maintenance of the power infrastructure. It can realize early warning, real-time fault location, self repair and effective load 中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜
中興ZXDU58 W600 V4.5R01M01室外壁掛式電源柜
CUS31-W2SCUM253-TU0610德國E+H分析儀
E+H 流量儀表FMU90 FDU91 80F50 90WA1 FTL260
FTL51-AAL2CB4E6A11 L=3MFTM51-AGG2L4A12AA L=500MM
北京E+H壓力變送器PMP731,FMD630,PMP45,PMC535
差壓PMD235 FMD630 FMD633
智能型PMC731 PMP731 PMC631 PMC635 PMP635
經濟型PMC41 PMC45 PMP41 PMP45 PMP46 PMP48 模擬型PMC133 PMC133Z PMC134 PMC134Z PMC330 PMC430 PMC531 PMC534 PMC535 PMC536
小型化模擬型P30 P31 P40 P41
靜壓液位DB101 DB102 DB103 DB104 DB201
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PMC133-1R1F2P6G1K P41-P200A40PMC41-RE11SBR11R1DB101-G1TE205ZF PMC531-D25G2P3GTPMC531-D25G2P3PMC133-1B1F2P3F3VPMC45-RE11F2B1AG1PMC45-RE11F1A1AG1PMD235-KB4F2EB1AG0L3T2PMD235-KB4F2EB1APMC41-RE11M2J21T1PMC41-RE11P2J21T1PMC531-D50A2P6F1ZT P41-P200A38PMC531-D50A2P6F1ZTPMC534-11EA2P6G2FTPMC45-RE15H2H1AL1PMC133-1R1F2F6TPMC133-1R1F2F6-----[TPMD235-XB4D2EB1C[T2] PMD235-KB4H2EB1CPMC41-RE21S2J1191
PMC131-A11F1D14PMC131-A11F1A1QPMC131-A11F1A1RPMC131-A11F1A1SPMC131-A11F1A1T PMC131-A11F1A1WPMC131-A12F1A1RPMC131-A31F1A1SPMC41-RE11M1C11M1PMC41-RE11M2C11M1PMC41-RE11M2J11M1PMC41-RE11P2A11M1PMC41-RE11P3J11M1 PMC41-RE11P3J11M1 PMC41-RE21H1A11M1PMC41-RE21M1P11T1PMC41-RE21P1C11M1PMC41-RE21P1J11R1 PMC41-RE21P1J11R1 PMC41-RE21SBJ11M1PMC41-RK11S2C11M1PMC41-RK11S2C11M1PMC45-RC11H3A1KL1PMC45-RE11M1C1DL4PMC45-RE11P1A1HL1PMC45-RE12P1J1AH4
PMP131-A1B01A1S, 0-10BarPMP131-A2411A1GPMP131-A2411A1TPMP41-LE27H1J21F1PMP41-RE23P1H11F1PMP41-RE23PBH11F1 range:0-10barPMP45-RE13P1J1ABFPMP46-RE23PBC1PBPMP48-RE13M1H1AGD1PMP131-A1B09AIT 0-16BAR 4-20MAPMC41-RE15H2H11T1
PMC131-AI1F1A3CPMP131-A1B01A1G
PMC133-1B1F2B6F1T 0-15KPAPMC71-ABA1H2GAAAAPMC41-RE15H2H11T1PMC731-R32SBM2 1M6
E+H 中國一級代理
PMD235智能差壓變送器
PMC131-A11F1D140-400mbar/4-20mA G1/2,IP65 E+HPMD235-KB4C1EA1A E+H
PMC731PMC631PMC635PMP731PMP635PMC41PMC45PMP41PMP45PMP46PMP48PMD235FMD630FMD633PMC133PMC133IzPMC134[z]pMC330PMC430ZPMC531PMC534[Z]PMC535[Z]PMC536[Z]P41-P230A33P41-P230A26P41-P200A40PMD235PMC1330PMC534PMC531PMP41-RK13P2A11M1PMP41PMP731PMC731P30P31P40PMC534-11FA2P6GFTPMC133 0-0.4MPA G1/2 PMP733 0-0.4MPA G1/2 不帶顯示PMP733 0-0.4MPA G1/2 帶顯示DB103-G11FA26PMC531-D40A2P6G2FTPMC731-R41P2H1R1GTPMC534-11FG2P6F14 G2外螺紋,0-400KPAPMD235-KH4D2EB1C(GOL3T)PMP41-RE13H2H11T1PMP41-RE13P2H11T1PMP41-RE13U2H11T1PMD235-KH4A2EB1C PMC534-11EA2F6T PMC534-11EA2F6P PMD235-KH4F2EB1CPMC 133-1R1F2P6G1F PMC531-D50A2P6G1GPMC731-R31P2H1T1 PMC133-1REF2F6TPMC133-1REF2P6T PMC534-11FA2P6GFT PMC133 0-0.4MPA G1/2 PMP733 0-0.4MPA G1/2 不帶顯示 PMP733 0-0.4MPA G1/2 帶顯示 DB103-G11FA26 PMC531-D40A2P6G2FT PMC731-R41P2H1R1GT PMC534-11FG2P6F14 G2外螺紋,0-400KPA PMD235-KH4D2EB1C(GOL3T) PMP41-RE13H2H11T1 PMP41-RE13P2H11T1 PMP41-RE13U2H11T1 PMD235-KH4A2EB1C PMC534-11EA2F6T PMC534-11EA2F6P PMD235-KH4F2EB1C PMC 133-1R1F2P6G1F PMC531-D50A2P6G1G PMC731-R31P2H1T1 PMC133-1REF2F6T PMC133-1REF2P6T P30 - 10012PMD235-KB4D2EB2C PMC41-RE11P2J11R1G0L3TPMC534-11FA2P6TFMD630-KS4F2EA1CQ2[L3]PMC534-11EA2F6[T]PMC133-1R1F2F6[T]PMC531-D20A2P6F14(T)DB101-G1TE205M H=5M L=5M PMC731-R31C2H1R1[T]PMC531-D50A2P6F1ZTP41-P100A29PMC41-RC11M2J11A1PMC41-RE11C1A11M1P30 - 10012PMC45-RE11F2H1AL1PS61.XXAGPHANAX VEGABAR66XXBGBP1DHAMAPS61.XXBAEHKMXXPS65.XXKGPHKMXXPMD235-KH4D2EB1CPMP41 RE13P2H21T1PMC41-RE11F2H21T1PMD235-KH4F2EB1CP30-20006P30-20008P30-23005PMC41-RE11SBR11R1PMC133-1B1F2P3F3V(-10-0.1MPA)P41-P200A40DB101-G1TE205ZF I=8 D=1 H=8VIB61.XXAGDRKMXPMC41-RE11F2H21T1 0-100KPAPMC41-RE15H2H11T1PMD235-XH4A2EA1A[G0T] 0-14MPAPMC531-D25G2P3-----[GT]PMP41-RE23P2J11G1SON65.XXAFPVDMXXVEGA SWING61.CAICVXMNXFPMC45-RE11F1A1AG1 PMC45-RE11F2B1AG1 PMC531-D50A2P6G1GT 0-1MPPMC534-11FA2P6F10T 0-100KPPMP131A2101A1GA9PMC41-RE15H2H11T1 PMD235-KH4A2EA1A[G0] PMD235-KB4F2EB1A G0L3T2PMC41-RE11M2J21T1 PMC41-RE11P2J21T1 PMC531-D50A2P6F1ZT P41-P200A38 0-0.6MPAPMC531-D50A2P6F1ZT 量程0-60KPPMD235-KB4A2EB1C[G0]PMC41-RE11F2J11R1PMP41-RC13P2A11T1PMP41-RC13Z2A11T1PMC41-RE11S2R11M1 PMP48-RE13M2H2EKH1(0-400KPa)PMC731-R41C2H1T1TPMC535-13BA2P6G1GWIDEPLUS HP6500PMC534-11EA2P6G2FT(0--0.6MPa絕壓)PMC45-RE15H2H1AL1
PMC133-1R1F2F6[T]PMD235-XB4D2EB1C[T2] DB101-G1TE205ZF I=8 D=1 H=8PMC535-13BA2P6-----(0-1MPA)PMD235-KB4H2EB1CPMD235-KB4H2EB1CPMP41-IE27H2J191 PMP41-IC11C2J11A1PMC41-RE21S2J1191PMC41-RE21S2J11A1FMP250-E5E1XCJAA2K