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- Neware
- Pine Research
- OKOndt Group
- Novocontrol
- Norecs
- METERTEST
- Microrad
- Metrel
- Labdex
- SDT
- micrux
- AARONIA AG
- ADASH
- Amptek
- AOiP
- AstroNova
- AWSensors
- Automatic Research
- BASI
- BRS
- BWB Technologies
- Cmc
- CTRL
- CALMET
- CHECKLINE
- Coxem
- C-Tech
- DV Power
- DANATRONICS
- ECH
- Elsys
- Enervac
- Enapter
- ELVEFLOW
- EA Technology
- EL-CELL
- ENERGY SUPPORT
- Electrothermal
- FASTEC
- GE
- GMW
- Gaskatel
- GIUSSANI
- Globecore
- GREENLIGHT
- GRZ
- HTW
- HIGH SENSE SOLUTIONSHTW
- HUBER
- Labnics
- Ida
- LIQUID
- Instytut Fotonowy
- KEHUA TECH
- JGG
- HVPD
- Jenway
- Jacomex
- IVIUM
- ndb
- OZM
- Redoxme
- Serstech
- SATIR
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- Zurich
新一代變壓器線上油中氣體|濕氣監測診斷系統
GE Next generation on-line multi-gas DGA device 型號:Kelman DGA 900- Kelman™ DGA 900是一款線上變壓器9種氣體DGA監測設備,採用第四代最先進的光聲光譜偵測技術,可測量由國際標準列出的所有重要的故障氣體(ppm)及油中水分(% RH & ppm)。
- 監測DGA及水:監測9種氣體(氫H₂、甲烷CH₄、乙烷C₂H₆、乙烯C₂H₄、乙炔C₂H₂、一氧化碳CO、二氧化碳CO₂、氮N₂、氧O₂)及水。
- 配備可供額外感測器使用的I/O,包括負載與油溫。
- 每小時提供一次完整的DGA結果;新的“快速模式”,30分鐘內即可提供關鍵氣體的監測結果。
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- Kelman™ DGA 900是一款線上變壓器9種氣體DGA監測設備,採用第四代最先進的光聲光譜偵測技術,可測量由國際標準列出的所有重要的故障氣體(ppm)及油中水分(% RH & ppm)。測量這些氣體,可供使用者偵測與診斷完整範圍的變壓器故障問題。
- 優點:
- 以遠端及多種氣體診斷,提供關於劣化中的變壓器狀態資訊。
- 加速營運決策,無須前往現場手動提取油樣。
- 問題可於發生初期即被偵測出,避免意外的故障及方便有計劃的停機。
- 基於錨定狀態的維護及依據客觀資料制定資產置換策略。
- 無需耗材或頻繁的再校正,能以最理想的性能運行。
- 新的“快速模式”技術,能對快速發展中的故障問題,提供近乎即時的洞察力。
- 加強的計算能力、高度可擴充的I/O及整合的人機介面組合,提供了一個強大且具高度靈活的變壓器監測解決方案。
- 適用於礦物絕緣油及較新的酯類油(天然與合成)。
- 特點:
- 監測DGA及水:監測9種氣體(氫H₂、甲烷CH₄、乙烷C₂H₆、乙烯C₂H₄、乙炔C₂H₂、一氧化碳CO、二氧化碳CO₂、氮N₂、氧O₂)及水。
- 配備可供額外感測器使用的I/O,包括負載與油溫。
- 快至每小時1次完整的DGA分析;新的“快速模式”,可於30分鐘內提供關鍵氣體的監測結果。。
- 整合的7吋彩色LCD螢幕,可簡化近端的操作互動性及資料的檢視。
- 創新的雙機殼設計,便於相鄰的或分開的安裝配置,能更適應不同的現場條件。
- 通訊選購:提供廣泛的多種近端與遠端的通訊選購。
-
- 測量:
- 技術:
- 自動的頂空氣體抽取。
- 光聲光譜(PAS)氣體測量。
- 薄膜電容式濕度感測器。
- 浸入式光纖氧氣感測器。
- 取樣頻率:
- 可設定從每小時1次到每4週1次。
- 達到警示位準即自動觸發的更快速的取樣。
- “快速模式”可於30分鐘內,提供以下氣體演變的快速指示 。
- 技術:
- 範圍(偵測下限~偵測上限);精度;重複性;快速模式是否提供:
- 氫(H₂): 5~5,000 ppm;精度:± LDL或±5%;重複性:<3%;快速模式可提供。
- 一氧化碳(CO):1~50,000 ppm;精度:± LDL或±3%;重複性:<2%;快速模式可提供。
- 甲烷(CH₄):2~50,000 ppm;精度:± LDL或±3%;重複性:<2%。
- 乙炔(C₂H₂):0.5~50,000 ppm;精度:± LDL或±3%;重複性:<2%;快速模式可提供。
- 乙烯(C₂H₄):1~50,000 ppm;精度:± LDL或±3%;重複性:<2%。
- 二氧化碳(CO₂):20~50,000 ppm;精度:± LDL或±3%;重複性:<3%;快速模式可提供。
- 乙烷(C₂H₆):1~50,000 ppm;精度:± LDL或±3%;重複性:<2%。
- 氧(O₂):100~50,000 ppm;精度:± LDL或±5%,重複性:<2%;快速模式可提供。
- 氮(N₂):10,000~100,000 ppm;精度:± LDL或±15%。
- 水(H₂O):0~100% RS(ppm);精度:± 3% RH;重複性:<3%;快速模式可提供。。
- 特點:
- 顯示幕:
- 陽光下可見的4個LED燈。
- 7吋彩色電阻式觸控背光LCD螢幕(800x480像素)。
- 內建嵌入式安全網路伺服器(https)。
- 類比輸入:多達15個可選購的類比輸入,用於負載CT、PT100輸入或4–20mA感測器
- 數位輸出:
- USB埠(B型連接器),用於近端連接到筆電,以設定系統。
- 無線網路802.11b/g/n。
- 串列輸出RS-485。
- 標準配置1Gb乙太網路(RJ45),提供光纖選購。
- GSM/GPRS或CDMA/LTE數據機選購。
- 數位通訊協定:
- 標準為Modbus®。
- 可選購DNP3或IEC 61850(Ed1或Ed2)。
- 警報:
- 警報設定:可依氣體位準、氣體變動率及水分位準設定及分配到電驛。
- 標準提供6個及最多可達18個乾接點電驛(C型,SPDT)、常開/常閉、10A@250Vac電阻性負載、10A@30Vdc電阻性負載。
- 個別的維修警報由各自的電驛發出。
- 顯示幕:
- 操作環境:
- 操作溫度:-40°C~+55°C。
- 操作濕度:0~95% RH,無凝露。
- 在閥的油溫:-20°C~+120°C。
- 在閥的油壓:0~700KPa(0~100psi)。
- 機箱防護等級:
- IP56認證。
- 粉體塗裝的鋁(RAL9002)。
- 可選購不上漆的316不銹鋼。
- 詳細規格、選購、配件及軟體,歡迎洽詢。
- 測量:
-
The Kelman™ DGA 900 is an 9-gas on-line transformer DGA monitoring unit. Using our 4th generation of advanced photo-acoustic detection technology, the DGA 900 measures all significant fault gases (in ppm) as outlined by international standards as well as moisture in oil (%RH & ppm). The measurement of these gases allows the user to detect and diagnose a complete range of transformer faults.
Benefits:
- Provides remote alert and multi-gas diagnostic of deteriorating transformer condition
- Expedites operational decisions without needing to go to site for manual oil sampling
- Issues can be detected in their infancy, avoiding unexpected failures and facilitating planned outages
- Anchors condition based maintenance and asset replacement strategies on hard data
- No need for consumables or frequent recalibration to operate at optimum performance
- New “Rapid Mode” provides near real time insight on fast developing faults
- Enhanced computing power, highly scalable I/Os and integrated HMI combine to provide a powerful highly flexible transformer monitoring solution
- Compatible with mineral insulating oils and newer ester based fluids (natural and synthetic)
Features:
- DGA & Water – Nine gases (hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, carbon dioxide, nitrogen and oxygen) plus moisture
- Inputs/Outputs for additional sensors including load and oil temperature
- Full DGA results down to once per hour and new “Rapid Mode” for critical gases in just 30 minutes
- Integrated 7” colour LCD screen for simplified local user interaction and visualisation of data
- Innovative two enclosure design enables adjacent or separated installation arrangements to better accommodate varied site conditions
- Communication Options – Extensive local and remote communications options
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- Measurements:
- Technology:
- Automated headspace gas extraction
- Photo-acoustic spectroscopy (PAS) gas measurement
- Thin film capacitive moisture sensor
- Immersed Fiber Optic Oxygen sensor
- Frequency:
- Configurable from once per hour to once every 4 weeks
- Faster sampling automatically triggered upon alert level reached
- "Rapid Mode" provides a rapid indication of the evolution of the gasses indicated below in ~30 minutes
- Technology:
- Range(LDL~UDL), Accuracy, Repeatability, Available in Rapid Mode:
- Hydrogen (H₂):5-5,000 ppm; ± LDL or ±5%;< 3%;Yes.
- Carb. Monox.(CO): 1-50,000 ppm; accuracy: ± LDL or ±3%; repeatability: < 2%; available in rapid mode: Yes
- Methane (CH₄): 2-50,000 ppm; accuracy: ± LDL or ±3%; repeatability: < 2%
- Acetylene (C₂H₂): 0.5-50,000 ppm; accuracy: ± LDL or ±3%; repeatability: < 2%; available in rapid mode: Yes
- Ethylene (C₂H₄): 1-50,000 ppm; accuracy: ± LDL or ±3%; repeatability: < 2%
- Carb. Diox. (CO₂): 20-50,000 ppm; accuracy: ± LDL or ±3%; repeatability: < 3%; available in rapid mode: Yes
- Ethane (C₂H₆):1-50,000 ppm; accuracy: ± LDL or ±3%; repeatability: < 2%
- Oxygen (O₂): 100 - 50,000 ppm; accuracy: ± LDL or ±5%; repeatability:< 2%; available in rapid mode: Yes
- Nitrogen (N₂): 10,000 -100,000 ppm; accuracy: ± LDL or ±15%
- Moisture (H₂O):0 - 100% RS (in ppm); ; accuracy: ± 3% RH; repeatability: < 3%; available in rapid mode: Yes
- FEATURES:
- Display:
- 4x sunlight visible LED arrays
- Backlit 7” inch color resistive touch LCD screen (800 x 480)
- Integrated embedded secure webserver (https)
- Analogue Inputs: Up to 15x optional analogue inputs for load CTs, PT100 inputs or 4–20mA sensors
- Digital Output:
- USB port (type B connector) for local connection to laptop computer for configuring the system
- Wi-Fi (802.11b/g/n)
- Serial output (RS-485)
- 1Gb Ethernet (RJ45) standard with fiber-optic options
- GSM/GPRS or CDMA/LTE modem options
- Digital Protocols:
- Modbus® as standard
- DNP3 or IEC 61850 (Ed 1 or 2) options
- Alarms:
- Alarm setting screens/scenarios, based on gas level, gas rate of change and moisture level, assignable to relays
- 6x standard and up to 18x dry contact relays (type C, SPDT), NO/NC, 10A at 250Vac resistive load, 10A at 30Vdc resistive load
- Separate Service Alarm with own relay
- Display:
- Enclosure :
- IP56 certified
- Powder coated aluminium (RAL9002)
- Unpainted 316 Stainless Steel option
- ENVIRONMENT:
- Operating ambient temperature: -40°C to +55°C (-40°F to +131°F)
- Operating ambient humidity: 0-95% RH, non-condensing
- Oil temperature at valve: -20°C to +120°C (-4°F to +248°F)
- Oil pressure at valve: 0-700KPa (0-100psi)
- Please feel free to contact for further detailed specifications.
- Measurements: