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H201TI GE Module Parts HYDRAN 201Ti Intelligent Transformer Monitor
The GE H201TI (HYDRAN 201Ti) is an intelligent online dissolved gas-in-oil monitoring transmitter designed for power transformer condition monitoring. It continuously detects combustible gases dissolved in transformer insulating oil, helping operators identify developing electrical and thermal faults at an early stage.
The H201Ti uses GE's Hydran sensor technology and microprocessor-based electronics to provide continuous monitoring without requiring conventional laboratory oil sampling. It is suitable for power transformers, reactors, and other oil-filled electrical equipment.
| Parameter | Specification |
|---|---|
| Manufacturer | GE |
| Model | H201TI |
| Product Series | HYDRAN 201i |
| Product Type | Intelligent Gas-in-Oil Transmitter |
| Measurement Principle | Fuel-cell sensor technology |
| Measurement Medium | Transformer insulating oil |
| Measured Gases | H₂, CO, C₂H₂, C₂H₄ |
| Measurement Range | 0–2000 ppm (H₂ equivalent) |
| Measurement Accuracy | ±10% of reading ±25 ppm |
| Response Time | Up to 90% step response in approximately 10 minutes |
| Communication | Isolated supervisory link, RS-485 |
| Operating Voltage | 100–120 VAC or 200–240 VAC |
| Frequency | 50/60 Hz |
| Installation | Direct transformer valve mounting |
| Enclosure | NEMA 4X |
| Protection | Weather-resistant enclosure |
- Continuous Gas Monitoring: Measures dissolved combustible gases in transformer insulating oil.
- Early Fault Detection: Helps identify overheating, partial discharge, and electrical arcing.
- Transformer Condition Assessment: Provides continuous gas concentration data for maintenance decisions.
- Alarm Monitoring: Supports configurable gas-level and fault alarms.
- Remote Communication: Connects to compatible HYDRAN controllers for centralized monitoring.
- Online Operation: Monitors transformer conditions without interrupting normal operation.
- Power generation plants
- Electrical substations
- High-voltage power transformers
- Industrial power distribution systems
- Oil-filled reactors
- Utility transformer monitoring systems
The GE H201TI is used for continuous dissolved gas monitoring in transformer insulating oil.
It responds primarily to hydrogen (H₂), carbon monoxide (CO), acetylene (C₂H₂), and ethylene (C₂H₄).
Its documented standard measurement range is 0–2000 ppm, expressed as hydrogen equivalent.
It is designed to work with GE HYDRAN 201Ci-1, 201Ci-4, and 201Ci-C controllers.
It is commonly used in power utilities, substations, power generation facilities, and industrial transformer systems.
It provides continuous transformer oil gas monitoring, early fault warnings, and improved transformer maintenance capabilities.
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