GE Hydran 201Ci-1 Single Channel Controller

Description

GE Hydran 201Ci-1 Single Channel Controller

Core Product Introduction
The GE Hydran 201Ci-1 is a specialized single-channel controller designed for continuous online monitoring of Dissolved Gas Analysis (DGA) in power transformers. Acting as the critical interface between the Hydran 201Ti smart transmitter and the host monitoring system, it provides real-time data on combustible gases in transformer oil. This device serves as the first line of defense in transformer protection, enabling early fault diagnosis and ensuring the reliable operation of critical power infrastructure.

Key Technical Specifications

• Product Type: Single Channel Controller / Interface Unit
• Compatible Transmitter: Hydran 201Ti
• Display: LED digital readout indicating gas concentration in parts per million (ppm)
• Analog Output: Isolated 4-20 mA output (also configurable via jumpers for 0-1mA, 0-1V, 0-10V)
• Alarm Contacts: Two gas alarm relays (High and High-High) and one system fault alarm contact (SPDT Form C)
• Communication Interfaces:
  • RS-232 or USB port for host computer connection
  • RS-485 port for networking multiple controllers
• Network Capacity: Supports up to 32 controllers on a single network, monitoring up to 128 Hydran 201Ti transmitters
• Enclosure Rating: NEMA 4X, weatherproof and suitable for outdoor installation
• Operating Temperature: -40°C to +55°C (-40°F to +131°F) with standard internal heater

H201CI-1

Recommended Models in the Same Series
For system expansion or alternative configurations within the GE Hydran monitoring family, consider the following related models:

• Hydran 201Ti: The intelligent gas transmitter that mounts directly on the transformer valve.
• Hydran 201Ci-C: A variant of the single-channel controller.
• Hydran 201Ci-4: A four-channel controller for monitoring multiple transmitters from a single unit.

Related Model Cross-Reference
The following part numbers and descriptions are directly associated with the H201Ci-1 in various supply chains and documentation:

• H201CI-1 (Common alternative capitalization)
• Hydran 201Ci-1 (Full product series name)
• MRP689579 (Associated GE material/part number found in technical documentation)

Application Scenarios & Key Features

• Transformer Health Monitoring: Continuously tracks key fault gases (Hydrogen, Carbon Monoxide, Ethylene, Acetylene) to detect internal arcing, overheating, or insulation degradation.
• Substation & Power Plant Automation: Integrates seamlessly into Distributed Control Systems (DCS) and SCADA systems for remote, real-time asset management.
• Predictive Maintenance: Provides IEEE C57.104 standard data to help maintenance teams schedule interventions before catastrophic failures occur.
• Remote Diagnostics: The local LED display and alarm buttons allow field personnel to quickly assess transformer status without needing a laptop, even when the transmitter is mounted in hard-to-reach locations.

Key Features:

• Early Fault Detection: Identifies incipient faults by monitoring dissolved gas trends, preventing unplanned outages.
• Flexible Integration: Multiple analog output options and robust communication protocols ensure compatibility with legacy and modern control systems.
• Scalable Networking: The RS-485 daisy-chain capability allows for cost-effective monitoring of entire transformer fleets.
• Rugged Design: The NEMA 4X enclosure and wide temperature range guarantee reliable operation in harsh outdoor substation environments.