fluids (natural and synthetic)
• Extending beyond DGA monitoring, through the connection of sensors, the Hydran M2-X can monitor
other parameters such as top oil temperature, load current and through the use of IEEE based
mathematical models, can provide further insight on changing transformer conditions
• Providing critical transformer gas behavior data for Asset Performance Management (APM)
strategies, facilitating planning of site intervention and maintenance activities
• Supports a wide range of communication methods and protocols to enable easy and secure
integration with GE's digital platforms including Perception™ transformer fleet management
software, DS Agile substation HMI, PREDIX™, and other APM software tools, historians and SCADA
systems
Applications
Advanced, flexible and expandable DGA monitoring solution tailored for utility and industrial
transformers.
Easily integrates with Kelman multi-gas DGA devices and the Multilin 845 protection & control
relay to provide continuous synchronization of chemical and electrical measurements for enhanced
transformer monitoring.
MEASUREMENTS
Fuel cell type sensor behind a gas permeable membrane in
contact with transformer insulating oil
Range 25-2000 ppm (volume/volume H₂
equivalent)
Accuracy** ±10% of reading ±25 ppm
Response time 10 minutes (90% of step change)
"Composite Gas" Sensor
Relative sensitivity H₂: 100% of concentration
CO: 15 ± 4 % of concentration
C₂H₂: 8 ± 2 % of concentration
C₂H₄: 1.5 ± 0.5 % of concentration
Repeatability highest of ±5% of reading or ±5 ppm
"Discrete H2" Gas Sensor (Mineral oil only)
Relative sensitivity H₂: 100% of concentration
Interference from CO, C2H2 and C2H4
less than 3% of concentration
Repeatability highest of ±5% of reading or ±10 ppm
Moisture Sensor
Thin film capacitive type sensor immersed in insulting oil
Range 0-100% RH
Accuracy ± 2% RH
Repeatability ± 2% RH
FEATURES
Display
Backlit LCD, 128 x 64 pixels
Keypad to setup unit and acknowledge alarms
Communications
Standard RS-232 port (DB-9 connector), for local connection to
computer for configuring the system
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