Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | Hydran M2 |
| Product Type | On-line Dissolved Gas & Moisture Monitor |
| Gas Measurement | Composite fault gas or Hydrogen-only (sensor dependent) |
| Moisture Measurement | Moisture in oil (%RH and ppm) |
| Installation | Single valve, no pumps or extra piping |
| Additional Capabilities | Optional IEEE/IEC-based transformer models |
| Communication | RS-485 standard; TCP/IP, DNP3 and other options available |
| Key Benefit | Early warning of developing transformer faults |
| Typical Application | Power transformers and oil-filled equipment |
4. Product Introduction (Anti-Template)
The GE Hydran M2 is a compact, permanently mounted on-line monitoring device that continuously measures dissolved fault gases and moisture in transformer oil. It provides early warning of developing internal faults by tracking either a composite gas value (sensitive to hydrogen and other key fault gases) or a hydrogen-only reading, depending on the sensor configuration. Moisture content is reported in both relative humidity and parts per million.
The unit installs on a single transformer oil valve and requires no pumps, moving parts, or additional piping. Optional expansion cards allow connection of additional sensors (such as load current or oil temperature) and enable calculation of transformer mathematical models based on IEEE and IEC standards. Communication options include standard RS-485 plus optional Ethernet (copper or fiber) and support for protocols such as DNP3, facilitating integration into SCADA or asset management systems. The Hydran M2 is widely deployed for condition-based maintenance of power transformers.
Hydran M2
Hydran M2
Hydran M2
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full model identification (Hydran M2 and any sensor or configuration options), serial number, and physical condition of the sensor head and electronics housing. Photograph all labels.
- Functional Testing – Power the unit where possible and verify basic sensor response and communication port activity. Full calibration and validation typically require specialized equipment or factory procedures.
- QA & Packaging – Protect the sensor membrane and connectors, clean the housing, and pack in protective packaging suitable for precision instruments.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial monitoring instruments. Packaging must protect the sensor and electronics; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Sensor Type Selection – Confirm whether the unit is configured for composite gas or hydrogen-only measurement to match the application requirements.
Installation Valve – Use a suitable transformer oil valve and follow GE installation guidelines to ensure proper oil contact and sealing.
Communication Setup – Verify protocol settings (RS-485, DNP3, TCP/IP, etc.) match the receiving system before commissioning.
Calibration and Maintenance – The device is designed for long-term operation with minimal field calibration, but follow manufacturer recommendations for periodic checks and sensor life management.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified Hydran M2?
As a specialized transformer monitoring device, availability depends on surplus or current stock. Typical lead time after verification is 5–20 business days plus standard shipping.
What does the Hydran M2 measure?
Dissolved fault gases (composite or hydrogen-only) and moisture in transformer oil.
How is it installed?
Permanently mounted on a single transformer oil valve; no pumps or extra piping required.
Does it support transformer models?
Yes, optional IEEE/IEC-based mathematical models can be enabled with additional sensor inputs.
What communication options are available?
RS-485 is standard; TCP/IP (copper or fiber), DNP3, and other protocols are available depending on configuration.
Is the Hydran M2 still current?
Yes. It remains part of the GE Vernova transformer monitoring portfolio, with the newer Hydran M2-X as an enhanced successor offering extended sensor life and additional features.
What should be confirmed before ordering a replacement?
Exact configuration (gas sensor type, communication options, model features), transformer oil type compatibility, and integration requirements with existing SCADA or monitoring systems.
