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GE H201TI
Overview
The GE H201TI is a key device in General Electric (GE)’s Hydran series, specifically designed for online monitoring of dissolved gases in transformer oil (DGA). It is used for real-time early warning of transformer faults, reducing the risk of unplanned power outages. Its core function is to provide early fault warnings by continuously monitoring the concentrations of gases such as hydrogen, carbon monoxide, acetylene, and ethylene. The device adopts fuel cell technology, featuring high precision, high sensitivity, and a modular design, and is widely used in power systems, industrial automation, and renewable energy fields.
Parameters
Input Voltage
- 100-240V AC (for DGA monitor)
- 18-36V DC (for Hall effect sensor version)
- 220V AC (for power adapter version)
Output Power
- 200W (DGA monitor)
- 0.75-4kW (mechatronics module)
Operating Temperature Range
- -40°C to +85°C (DGA monitor)
- -20°C to +55°C (electromechanical module)
Dimensions and Weight
- 200mm x 100mm x 50mm (DGA monitor)
- 120 x 80 x 60 mm (electromechanical module)
- Weight: 1.5-2.5 kg (depending on version)
Other Parameters
- Accuracy: ±10% of reading ±25 ppm (DGA monitoring)
- Response time: <1 μs (Hall sensor)
- Communication protocols: Modbus, RS-485, USB
Product Features
High Precision and Real-Time Performance
- Adopts fuel cell sensor technology, with 100% response to hydrogen, and a monitoring range of 0-2000 ppm.
- Real-time display of gas concentrations, supporting historical data recording (up to 1 year).
Modularity and Compatibility
- Supports industrial protocols such as Modbus, Profibus, and Ethernet, enabling seamless integration with SCADA systems.
- Provides digital input/output, analog signal interfaces, and alarm contacts (high gas level, system failure).
Durability and Maintenance
- No pump or additional pipeline design, directly installed on the transformer oil valve, reducing maintenance complexity.
- Self-check function and remote diagnostic capability, reducing the need for on-site calibration.
Safety and Reliability
- Protection class IP55 (some versions), insulation class B/F.
- Compliant with NEMA and IEC standards, suitable for harsh industrial environments.
Structure and Composition
Core Components
- HYDRAN® sensor: Fuel cell-type composite gas sensor, monitoring hydrogen, carbon monoxide, acetylene, and ethylene.
- Thermal regulation system: Ensures stable operation of the sensor within a wide temperature range.
- Microprocessor electric transmitter: Processes data and supports Modbus/RS-485 communication.
Interfaces and Functions
- Local display: Backlit LCD screen displays gas readings in real-time.
- Remote communication: RS-485 isolated port and USB interface, supporting data transmission and system configuration.
- Alarm system: 3 dry contact relay alarms, supporting sound-light/remote alarms.
Application Fields
Power Systems
- Transformer health monitoring (power generation, transmission, and distribution networks).
- Transformer early warning in wind farms and solar photovoltaic systems.
Industrial Automation
- Motor control and protection (overload, undervoltage, short-circuit protection).
- Real-time control of industrial robots and servo drives.
Commercial and Residential
- Power management of household appliances and building automation systems.
- Stable power supply for medical equipment and security monitoring.
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