Original GE Hydran H201Ci‑1 single‑channel controller for H201Ti transmitter, on‑line dissolved gas analysis for power transformer condition monitoring spare part.

Product Overview

HYDRAN H201Ci‑1 is single‑channel DGA controller manufactured by GE Energy, matched with HYDRAN H201Ti intelligent transmitter for power transformer oil‑dissolved gas on‑line monitoring. It receives composite fault‑gas measurement data including hydrogen, carbon monoxide, acetylene and ethylene, calculates Hydran composite‑gas value, executes high / high‑high gas concentration alarm and system fault judgment. Equipped with local LED digital display, SPDT relay alarm contacts and configurable analog output, it supports RS‑232 / RS‑485 Modbus‑RTU communication for data uploading to SCADA / DCS system. Rugged weather‑proof enclosure adapts to substation indoor and semi‑outdoor environment. Widely used as maintenance spare part for power‑plant, substation large‑power transformer condition monitoring cabinets.

Key Features

• Single‑channel design, specially matched with one HYDRAN H201Ti intelligent gas transmitter
• Real‑time composite‑gas value calculation, monitors transformer early‑stage internal fault risk
• Local LED digital display for real‑time gas concentration value (0‑2000 ppm measuring range)
• Latching Hi / Hi‑Hi gas alarm buttons and fault SPDT dry‑contact relay output for external alarm panel connection
• Jumper configurable analog output: 4‑20mA, 0‑1mA, 0‑1V, 0‑10V for DCS / PLC signal acquisition
• Supports RS‑232 local debugging and RS‑485 Modbus‑RTU multi‑unit networking up to 1300 meters distance
• Optical‑isolated dedicated link communicates and supplies power to H201Ti transmitter

• Weather‑proof industrial enclosure, adapts to substation cabinet and semi‑outdoor installation conditions

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Technical Specifications

• Brand: GE Energy
• Model: HYDRAN H201Ci‑1
• Module Type: Single‑Channel DGA Monitoring Controller
• Matched Transmitter: HYDRAN H201Ti
• Measuring Range: 0‑2000 ppm Hydran composite‑gas value
• Analog Output: Configurable 4‑20mA, 0‑1mA, 0‑1V, 0‑10V
• Alarm Output: SPDT dry‑contact relay for Hi, Hi‑Hi, system fault
• Communication: RS‑232, RS‑485 Modbus‑RTU
• Power Supply: 100‑230VAC 50/60Hz
• Operating Temp: ‑20℃ ~ +55℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing

• Installation: Wall‑mount / cabinet‑mount installation

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Compatibility

Works with GE HYDRAN H201Ti intelligent dissolved‑gas transmitter. Transmitter communication wiring inspection, alarm threshold configuration and DGA function simulation test required after replacement.