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Online DGA (MGA2000)

Online DGA (MGA2000)

MGA2000-6 TRANSFORMER ONLINE MULTI-GAS ANALYZER The "MGA2000-6 Transformer Online Multi-gas Analyzer" is a high reliable, online monitoring instrument and system. It can analyze the concentrations and accumulation rates of dissolved gases inside transformer oil continuously, real-time based and online achieved. Automatic diagnosis of transformer faults can be performed by the faults diagnosis expert system. Such the application is significant for avoiding accidents. The technology and its application provide technical assurance for the transition from the traditional planned maintenance to more advanced concept of Condition Based Maintenance.

MGA2000 Series Transformer Online Multi-Gas Analyzer

“MGA2000 Series Transformer Online Multi-Gas Analyzer” is a highly reliable, online monitoring instrument and system. Analyzing the concentration and accumulation rates of dissolved gases of transformer oil continuously, real-time based, and providing online information. The automatic diagnosis of transformer faults can be performed by its faults diagnosis expert system is significant as an accident prevention tool. The technology and its application provide unparallel assurance for the transition from traditional Planned Maintenance to the current advanced concept of Condition Based Maintenance.

Technology Features:
  • Hot-wire type semiconductor detector to measure hydrogen (H2), carbon monoxide (CO), carbon dioxide(CO2), methane(CH4), ethylene(C2H4), acetylene(C2H2), ethane(C2H6), and Oxygen (O2); total combustible gases (TCG); Using independent moisture detection unit to detect water content in oil.
  • Moisture detection unit to detect water content in oil
  • Temperature Control: Dual-loops, multiple modes for constant temperature control
  • Quantitative Mode: Quantitativeness by peak height
  • Communications Mode: Field data acquisition system communicating directly with the data processing server by RS485 or Ethernet
  • Network Protocol: System supports TCP / IP network protocols or IEC61850, support remote monitoring and remote maintenance
  • Alarm Mode: Two-levels-alarm, sonic/signal light alarm signals can be transmitted for remote monitoring
  • MGA2000 Technical Specification:
    • Analysis Cycle: Less than 1 hour, user-specified
    • Temperature Control Precision: ±0.1 C
    • Temperature Range : - 40 C ~ +70 C
    • Type of Cooling: Fan
    • Humidity Range: 0~95%, No Condensation
    • Power Supply: 100~230 VAC
    • Balance Time: 10 Minutes
    • Carrier Gas: High purity compress air, Pressure 0.3 MPa
    • EMC Performance : IEC61000 and GB/T17626
    • Communication: RS485.MODBUS/IEC61580
    KEY MGA2000 FEATURES:
  • Detection Principle: Using Hotline nanocrystalline semiconductor detector to measure hydrogen(H2), carbon monoxide (CO), carbon dioxide (CO2), methane (CH4), ethylene (C2H4), acetylene(C2H2), ethane (C2H6), oxygen (O2), total combustible gases (TCG); Using independent moisture detection unit to detect water content in oil.
  • Gases separation Method: Combined Chromatographic column.
  • Quantitative Mode: Quantitativeness by peak height.
  • Sampling: Automatic sampling by the multi-way valve.
  • Auto calibration technique: Periodic Self-Calibration Automatically facility.
  • Carrier Gas : Configured with Carrier Gas Generator And need less extra cylinder.
  • Temperature Control : Dual-loops , multiple modes constant temperature control for the separator,oil pipe, valve, detector, column.
  • Data-Acquirement : - A/D Converter using over sampling technology, 24b resolution, automatic calibration of measurement range and zero point after gain change.
  • Communications Mode : Field Data acquisition system communicating with data processing server via VAN2.0/ RS485/ IEC61850.
  • Network Protocol : System supports TCP / IP network protocols, remote monitoring and remote maintenance
  • Alarm Mode : Two levels alarm, sonic/signal light alarm signals can be transmitted for remote
  • monitoring. (Equipment has facility to give SMS alert to more than three users whenever any fault gas violates the predefined limit).

  • Analysis Cycle : Less than 1 hour, user specified.
  • IP Protection- IP 55
  • Panel body- SS
  • Device can be installed rigidly on the foundation.
  • Other Features:
    • Shielding EMI with Isolated power.
    • Filter to block the Lightning Surge
    • Optical Coupler Optical Coupler for the I/O terminals
    • Current Surge Protection
    • Data repeater
    • Uses the proprietary Baseline Self-tracking
    • Has a Remote self-check & maintenance program.
    • Gas Extraction Technique: Both Fiber diffusion and dynamic negative pressure method.

Dissolved Gas Anaylizer

The “MGA2000 Transformer Online Multi-gas Analyzer(Online DGA) is a highly reliable, online monitoring instrument and system. It can analyze