GE H201Ci‑1 Single‑Channel Controller｜HYDRAN 201i Dissolved‑Gas‑in‑Oil Monitoring System

Product Title

GE H201Ci‑1 Single‑Channel Controller for HYDRAN 201Ti Transmitter, On‑line DGA Monitoring Unit for Oil‑filled Electrical Equipment

Product Introduction

The H201Ci‑1 is a single‑channel remote controller within GE Vernova (former GE Grid Solutions) HYDRAN®201i series dissolved‑gas‑in‑oil analysis (DGA) monitoring system. It works cooperatively with one H201Ti field‑mounted intelligent transmitter, receiving dissolved fault‑gas measurement data from transformer insulating oil. It delivers local digital display, multi‑level alarm relay output, configurable analog signals and multi‑protocol digital communication. Combined H201Ci‑1 + H201Ti assembly is named HYDRAN 201R Model i, performing continuous on‑line monitoring for power transformers and oil‑filled reactors, capturing incipient faults such as partial discharge, local overheating and arcing before severe equipment failure occurs. This controller is widely used for new‑build installation and retrofit spare‑part replacement of existing power‑station assets.

Specific Application Information

1. Receive real‑time fault‑gas equivalent readings (H₂, CO, C₂H₂, C₂H₄) transmitted from H201Ti transmitter installed on transformer oil valveManualsLib.
2. Local LED digital display of gas‑equivalent concentration value for on‑site visual inspection.
3. Configurable two‑stage gas alarm (Hi / Hi‑Hi) plus system fault alarm via SPDT dry relay contacts for substation alarm panel interconnection.
4. Configurable analog output (0‑1 V, 0‑10 V, 4‑20 mA etc.) for connection to PLC, DCS and SCADA systems.
5. Digital data transmission through opto‑isolated RS‑485 Modbus RTU for remote supervision and historical trend recording.
6. Built‑in system self‑diagnosis; fail‑safe logic triggers fault alarm and analog‑output fallback upon power loss, communication breakdown or transmitter failure.
7. Local commissioning, parameter setting and troubleshooting via RS‑232 service port with PC configuration tool.
8. Multi‑unit daisy‑chaining: up to 32 controllers can be networked on one RS‑485 bus for centralized substation monitoringhoneywell-….

H201CI-1

Technical Parameters

Main Features

• Single‑channel dedicated controller, perfectly matched with HYDRAN H201Ti field transmitter for transformer dissolved‑gas monitoring.
• High‑voltage opto‑isolation for field‑transmitter link, excellent anti‑interference performance for substation high‑EMI environment.
• Multiple configurable signal outputs: relay alarm contacts, analog signals and Modbus RTU digital interface, easy integration with existing SCADA / DCS / PLC.
• Fail‑safe operation: fault‑condition alarm activation and analog‑output fallback mode improve power‑system safety.
• Local LED display and illuminated alarm push‑buttons, convenient for on‑site operator checking and manual alarm reset.
• Support multi‑device RS‑485 daisy‑chain networking, realize centralized monitoring of multiple transformers in substation.
• RS‑232 service port supports on‑site commissioning, parameter modification and fault diagnosis by PC software.
• Rugged industrial wall‑mount enclosure, suitable for substation control‑room installation.
• Compliant with mainstream transformer‑monitoring industry standards, for preventive maintenance and early‑fault warning of oil‑filled power equipment.

H201CI-1

Typical Application Scenarios

• Utility‑scale power‑plant main & auxiliary power transformers monitoring.
• Substation large‑capacity oil‑filled transformers and shunt reactors incipient‑fault early warning.
• Industrial heavy‑industry plant transformers (steel mill, petrochemical, mining facility).
• Wind‑farm / solar‑station step‑up transformer health‑condition monitoring.
• Retrofit & upgrade of existing HYDRAN 201R old‑generation monitoring systems.
• Power‑asset predictive‑maintenance projects for oil‑filled high‑voltage electrical apparatus.

Matching / Supporting Components

1. Field Transmitter: H201Ti intelligent dissolved‑gas transmitter (installed on transformer valve)
2. Configuration Software: HYDRAN HOST monitoring software for parameter setup, trend‑view and remote diagnosis
3. Communication Cables: 3‑pair overall‑shielded twisted‑pair cable for supervisory link; RS‑485 bus shielded cable
4. Installation Tools: H201‑TW special tube wrench for transmitter valve mounting; vibration‑damping mounting pads
5. Calibration Tool: H200i electronic calibrator for field‑site transmitter verification and calibration
6. Spare‑parts: Enclosure gaskets, terminal connectors, indicator lamps.

Related GE HYDRAN 201i Series Models

• H201Ci‑4: Four‑channel controller, supports up to four H201Ti transmitters for multi‑transformer centralized monitoring
• H201Ci‑C: Communication‑only gateway controller, no local display / alarm contacts, for data aggregation and network transfer
• H201Ti: Field‑mount intelligent gas‑sensor transmitter for transformer oil‑valve installation
• HYDRAN 201R Model i: Complete system set (H201Ci‑1 + H201Ti)