GE HYDRAN 201TI Transformer Gas Monitor

Technical Specifications Power supply:24VDC; Measurement:total combustible gas, moisture, oil temperature Operating temperature:‑40℃~+85℃; Output:4‑20mA, Modbus RS485

Functional Features Continuous on‑line DGA monitoring. Real‑time gas and moisture alarm. Built‑in self‑diagnosis. Output measured data to control system.

Application Scenarios On‑line condition monitoring for oil‑filled power transformers and reactors. Spare sensor for substation asset management upgrade.

Performance Parameters Stable long‑term on‑site measurement; Early warning capability for transformer internal faults.

Material Composition Metal explosion‑proof housing; Gas permeable membrane; sensing cell; signal processing PCB; cable glands.

Structural Characteristics Flange‑mount design for transformer valve connection; External signal wiring terminal compartment.

Working Principle Transformer oil contacts gas‑permeable membrane. Gas molecules penetrate into sensing cell. Sensor converts gas concentration and temperature into electrical signals and transmits to host system.

Installation Requirements Mount on transformer oil drain valve. Complete oil‑side sealing. Connect 24VDC power and signal cable. Calibrate parameters after power‑on.

Usage Notes Follow explosion‑proof installation standards. Avoid mechanical impact to sensor membrane.