GE Grid Solutions Hydran M2-X Enhanced Monitoring with Extended Sensor Life

Product basic information

Key content of the project

Product Name: Hydran M2-X

Brand owner GE Grid Solutions

Product positioning: A new generation DGA (Dissolved Gas Analysis) monitoring solution that has been validated on-site

Core mission: Monitor the gas and moisture content in transformer insulation oil, warn of faults, extend equipment life, and reduce unplanned shutdowns

With 40 years of experience in online DGA solutions, we have sold over 50000 units worldwide

Warranty and 7-year product warranty; The sensor has a lifespan of over 10 years (based on accelerated aging testing, MTTF is 11.5 years)

Core advantages

Wide adaptability: supports mineral insulating oil, natural and synthetic ester insulating oil transformers

Low maintenance and convenience: miniaturized design, no moving parts; Can be installed through existing transformer valves, usually without the need for shutdown

Functional scalability:

Sensor options: Traditional composite gas sensors (H ₂, CO, C ₂ H ₄) or single H ₂ sensor (mineral oil only)

Scalable monitoring: Connect sensors to monitor top oil temperature and load current, support IEEE transformer model calculation (such as winding hotspot temperature)

On site upgrade: can add analog signal input to monitor more key parameters

Powerful Integration: Supports multiple communication methods and protocols, seamlessly integrates with GE Perception ™、 PREDIX ™ Waiting for digital platforms and SCADA systems

Intuitive operating experience: Built in backlit LCD display (128 × 64 pixels) and keyboard, supporting local data visualization and device configuration

Key technical parameters

(1) Monitoring sensor parameters

Specific parameters of core indicators for sensor types

Composite gas sensor measurement range 25-2000 ppm (volume/volume H ₂ equivalent)

Accuracy ± 10% Reading ± 25 ppm

Response time of 10 minutes (90% of step change)

Relative sensitivity H ₂: 100% concentration; CO: 15 ± 4% concentration; C ₂ H ₄: 1.5 ± 0.5% concentration

Repeatability ± 5% reading or ± 5 ppm (whichever is greater)

Single H ₂ sensor (mineral oil only) relative sensitivity H ₂: 100% concentration; Affected by CO, C ₂ H ₂, C ₂ H ₄ interference

Repeatability ± 5% reading or ± 10 ppm (whichever is greater); Concentration error<3%

Moisture sensor (thin film capacitive) measuring range 0-100% RH

Accuracy ± 2% RH

Repeatability ± 2% RH

(2) Environmental and physical parameters

Category specific parameters

Working environment temperature -40 ° C~+55 ° C (-40 ° F~+131 ° F)

Working environment humidity 0-95% RH (non condensing)

Oil temperature at valve -40 ° C~+105 ° C (-40 ° F~+221 ° F) (optional fin heat dissipation adapter)

The oil pressure at the valve is 0-700KPa (0-100psi), and the sensor is resistant to vacuum

Protection level NEMA Type 4X, compliant with IP56 requirements

Size 315 × 219 × 196 mm (12.4 × 8.63 × 7.72 inches)

Installation weight 7.5Kg (16.5lb)

Transport weight 9.0Kg (20lb)

Installation interface with 1.5 "NPT external thread, can be installed on ≥ 1.5" NPT valves through an adapter

(3) Communication and power parameters

Category specific parameters

Communication interface standards: RS-232 (DB-9 connector), RS-485 (terminal block, 2000Vac RMS isolation); Optional: Ethernet/Fiber (TCP/IP)

Supporting protocol standard: Modbus ®、 DNP 3.0； Optional: IEC 61850 (TCP/IP)

Power requirements: 90-132 Vac or 180-264 Vac switch mode universal power supply, 47-63 Hz, maximum 650VA

Functional characteristics

Alarm function:

Alarm types: gas/moisture warning (Hi), gas/moisture alarm (HiHi), system alarm

Alarm triggering: Gas alarm can be based on concentration, hourly/daily trend (rate of change); Moisture alarm can be based on concentration and average concentration; Support optional simulation input or model calculation result alarm

Hardware support: 5 dry contact relays (C-type SPDT), 3A@250Vac /30Vdc resistive load

Additional features:

Manual sampling: external oil sampling port, compatible with Ruhr stopcock glass syringe

Data management: compatible with GE Perception ™ Software that supports data download and trend analysis

Insulation monitoring: Built in moisture sensor to monitor moisture in oil, identify paper aging and gasket leakage

Application scenarios

Applicable objects: Transformers in the power industry and industrial sector

Integrated configuration: Can be integrated with Kelman multi gas DGA equipment and Multilin 845 protection and control relays to achieve synchronization of chemical and electrical measurements

Core Value: Providing key data for Asset Performance Management (APM), assisting in maintenance plan development, and avoiding catastrophic transformer failures

key issue

Question 1: What is the core monitoring capability of Hydran M2-X? What types of transformer insulation oil are supported?

Answer: The core monitoring capability is to continuously monitor the gases (composite gases: H ₂, CO, C ₂ H ₄) in the insulation oil of transformers; Or single H ₂ and moisture content, with a gas measurement range of 25-2000 ppm (H ₂ equivalent) and a moisture measurement range of 0-100% RH; supported insulation oil types include mineral insulation oil, natural ester insulation oil, and synthetic ester insulation oil (single H ₂ sensor only supports mineral oil).

Question 2: What are the advantages of Hydran M2-X in communication and integration? Which systems/software are compatible?

Answer: Communication advantages include support for multiple interfaces (RS-232, RS-485, optional Ethernet/fiber) and protocols (standard Modbus) ®、 DNP 3.0； Optional IEC 61850, capable of local configuration and remote communication; In terms of integration compatibility, it can be compatible with the GE digital platform (Perception) ™ Transformer Fleet Management Software PREDIX ™、 The DS Agile substation HMI, SCADA system, historians, and APM software tools seamlessly integrate, and can also synchronize data with Kelman multi gas DGA equipment and Multilin 845 protection control relays.

Question 3: In what aspects is the reliability and maintenance convenience of Hydran M2-X reflected? What are the relevant key indicators?

Answer: Reliability is reflected in 40 years of on-site verification, global sales of over 50000 units, 7-year product warranty, sensor lifespan of over 10 years (MTTF 11.5 years), and protection level of IP56, suitable for wide temperature working environments ranging from -40 ° C to+55 ° C; The convenience of maintenance is reflected in the design of no moving parts, low maintenance requirements, on-site upgradability and expansion. During installation, existing transformer valves can be utilized (usually without shutdown), equipped with intuitive LCD display screens and keyboards, supporting local operation and manual sampling, reducing maintenance costs and downtime.