GE HYDRAN 201CI‑C Product Description

The HYDRAN 201CI‑C is a multi‑channel remote controller unit for the HYDRAN 201Ti dissolved‑gas‑in‑oil analysis (DGA) transmitters, developed by GE Vernova. This weather‑proof NEMA 4X enclosure device supports connection of up to four HYDRAN 201Ti field sensors for oil‑immersed transformer online fault‑gas monitoring. It collects ppm‑level composite fault‑gas data from each transmitter, provides centralized network access, data aggregation and serial communication interfaces for substation monitoring systems. Designed for outdoor substation environments, it enables daisy‑chain networking to expand monitoring capacity across multiple power transformers without local analog outputs or alarm relays.

Product Features

• Supports up to four HYDRAN 201Ti intelligent DGA transmitters for multi‑transformer centralized data collection
• NEMA 4X rated weather‑resistant enclosure, suitable for harsh outdoor substation installation conditions
• RS‑232 and RS‑485 communication ports, supports daisy‑chain networking for up to 32 units in one local network, maximum cable length of 1200 meters
• Centralized data access point, allows host system to retrieve measurement data from all connected 201Ti sensors through single communication link
• Compatible with composite‑gas measurement data including hydrogen, carbon monoxide, acetylene and ethylene from field transmitters
• Designed for multi‑transformer group monitoring; no built‑in alarm relay contacts or analog output channels
• Allows remote configuration, status reading and diagnostic polling for connected HYDRAN 201Ti field devices
• Wide‑range AC power input, stable operation under substation auxiliary‑power fluctuation conditions

Application Scenarios

• Three‑phase transformer banks monitoring with three main transformers plus one spare DGA sensor deployment
• High‑voltage substation multi‑transformer centralized dissolved‑gas online monitoring systems
• Power plant step‑up transformer fleet condition‑based monitoring and early‑fault warning
• Industrial heavy‑load oil‑immersed transformers and shunt reactor DGA supervisory networks
• Substation automation integration, connecting multiple DGA sensors to SCADA and asset‑management platforms
• Retrofit projects for aging transformer fleets requiring multi‑point gas‑monitoring aggregation
• Distributed generation station transformer predictive‑maintenance monitoring systems

Frequently Asked Questions