Description
GE ENERGY HYDRAN H201Ci-1 is a single channel controller designed specifically for online monitoring of transformers,and is a key component of the GE HYDRAN 201Ti intelligent transmitter system.It is used in conjunction with the HYDRAN 201Ti sensor paired with GE ENERGY HYDRAN H201Ci-1 to monitor fault gases in oil filled electrical equipment(especially transformers)in real time.By continuously measuring the content of complex fault gases dissolved in transformer oil,GE ENERGY HYDRAN H201Ci-1 can provide early warning for power companies and industrial users,effectively identify potential transformer faults,and avoid unplanned shutdowns and expensive losses.This controller not only provides local display function,but also leads out alarm relay contacts and analog outputs,making it convenient for users to wire and integrate into existing SCADA or DCS systems.GE ENERGY HYDRAN H201Ci-1 plays a crucial role in transformer asset management,enabling continuous monitoring of transformer health and greatly enhancing the reliability and operational safety of the power system.

GE ENERGY HYDRAN H201Ci-1
technical specifications
Product model:GE ENERGY HYDRAN H201Ci-1
Manufacturer:GE Energy(now Grid Solutions under GE Vernova)
Product Type:Single Channel Controller/Transformer Monitoring and Control Unit
Compatible sensor:GE HYDRAN 201Ti intelligent transmitter
Supply voltage:90-132 VAC or 180-264 VAC(switchable),47-63 Hz
Maximum power consumption:160 VA(controller)/350 VA(including sensor and heater)
Communication interface:RS-232(local connection),RS-485(for supervisory link or network connection)
Alarm output:gas high alarm,gas high high alarm,fault alarm(dry contact relay)
Analog output:4-20mA(configurable for gas ppm value output)
Display screen:Backlit LCD display screen(2 lines x 16 characters)
Operating temperature(environment):-50°C to+55°C(-58°F to+131°F)
Protection level:NEMA 4X(IP66)
Main features and advantages
GE ENERGY HYDRAN H201Ci-1,as a key auxiliary unit of GE HYDRAN 201Ti online transformer monitoring system,has multiple significant features and advantages,making it indispensable in transformer health management.
Intuitive local human-machine interface:GE ENERGY HYDRAN H201Ci-1 provides a local LCD display screen and simple buttons,allowing users to directly view real-time dissolved gas ppm values,trend data,and alarm status on site.When the HYDRAN 201Ti sensor is installed at a high position in the transformer and is not easy to observe directly,the remote display function of GE ENERGY HYDRAN H201Ci-1 becomes particularly important.It brings key information to a height that is within reach of the human eye,greatly improving the convenience of on-site operations.
Flexible alarm function:The controller has configurable alarm outputs,including”gas high”and”gas high high”alarms,as well as system”fault”alarms.These alarms can be set based on gas ppm levels or gas rate of change(ROC),such as hourly or daily rate of change.This multi-level alarm mechanism can timely remind operation and maintenance personnel to pay attention to the deterioration of transformer health,allowing them enough time to take preventive measures,avoid sudden failures,and ensure the continuity of system operation.
Diverse communication capabilities:GE ENERGY HYDRAN H201Ci-1 supports multiple communication interfaces such as RS-232 and RS-485,making it easy to exchange data with upper computers,SCADA systems,or DCS systems.Through the RS-485 port,it can connect and form a network of up to 32 GE ENERGY HYDRAN H201Ci-1 or HYDRAN 201Ti units for centralized monitoring.This powerful communication capability enables remote access to gas readings and trends,greatly improving the efficiency of asset management.
Durable industrial design:GE ENERGY HYDRAN H201Ci-1 features a sturdy NEMA 4X(IP66)rated housing,designed specifically for outdoor and harsh industrial environments.It can withstand rainwater,dust,ultraviolet radiation,and certain physical impacts,ensuring stable and reliable operation even under harsh conditions near the transformer,reducing the need for additional protective measures.
Easy to integrate and maintain:As a component of the HYDRAN 201Ti system,the design of GE ENERGY HYDRAN H201Ci-1 takes into account the convenience of installation and maintenance.It leads out analog output and alarm relay contacts,simplifying the wiring work with external systems.The system also has self checking and diagnostic functions,which can automatically detect sensor,power or communication faults and trigger service alerts,further reducing the complexity of maintenance.

GE ENERGY HYDRAN H201Ci-1
application area
As an important auxiliary controller for online monitoring of transformers,GE ENERGY HYDRAN H201Ci-1 is mainly applied in the power industry and various industrial facilities,aiming to improve the reliability and operational efficiency of transformer assets.
Power transmission and distribution network:GE ENERGY HYDRAN H201Ci-1 is widely used in key transmission and distribution transformers in power company substations.By continuously monitoring the dissolved fault gases(such as hydrogen,carbon monoxide,acetylene,ethylene,etc.)in the oil,it can detect potential faults such as partial discharge and overheating inside the transformer early,thereby avoiding major accidents such as transformer burnout and power outages,ensuring the stable operation of the power grid and the continuity of power supply.
Industrial enterprises and large factories:various large industrial enterprises such as steel,chemical,petrochemical,manufacturing,data centers,etc.have extremely high requirements for the continuity and stability of power supply in their production processes.GE ENERGY HYDRAN H201Ci-1 is installed on transformers inside these factories,which can effectively reduce the risk of production interruption caused by transformer failures,minimize expensive downtime and production losses,and ensure the smooth progress of industrial production.
Renewable energy power plants:With the rapid development of renewable energy sources such as wind and solar power,the health of their grid connected transformers is crucial to the stability of the entire power grid.GE ENERGY HYDRAN H201Ci-1 plays a role in these power plants,monitoring transformers in real-time to ensure their reliability under various complex operating conditions and supporting stable output of clean energy.
Rail transit and infrastructure:In transportation infrastructure such as railways,subways,airports,etc.,transformers in substations are the core equipment.The application of GE ENERGY HYDRAN H201Ci-1 helps to provide early warning of transformer faults,ensure stable power supply,and guarantee the normal operation of trains and infrastructure services.
Related products
The products closely related to GE ENERGY HYDRAN H201Ci-1 mainly include its accompanying sensors,controllers of the same series,and more advanced DGA monitoring system.
GE HYDRAN 201Ti:This is an intelligent transmitter that must be used with GE ENERGY HYDRAN H201Ci-1.It includes a gas sensor and microprocessor,responsible for directly collecting fault gas data from transformer oil.
GE HYDRAN H201Ci-C:This is a multi-channel controller similar to GE ENERGY HYDRAN H201Ci-1,but capable of receiving data from up to four HYDRAN 201Ti transmitters,providing a centralized communication point.
GE HYDRAN H201Ci-4:This is also a controller of the HYDRAN 201Ti series,which may have different I/O configurations or specific functions.Together with GE ENERGY HYDRAN H201Ci-1,it forms the controller family of this series.
GE HYDRAN M2:This is GE’s more advanced online dissolved gas and moisture monitoring equipment,which not only monitors various fault gases,but also measures moisture in oil,providing more comprehensive transformer health diagnosis data.
GE HYDRAN M2-X:An enhanced version of GE HYDRAN M2,typically featuring longer sensor life and additional features.
GE Perception™Fleet software:This is a data download,trend analysis,and diagnostic software specifically designed by GE for DGA monitoring equipment.It is used in conjunction with controllers such as GE ENERGY HYDRAN H201Ci-1 to provide deeper data analysis capabilities.
Various communication accessories,including fiber optic modules,modems,etc.,are used to expand the remote communication capabilities of GE ENERGY HYDRAN H201Ci-1.

GE ENERGY HYDRAN H201Ci-1
Installation and maintenance
Preparation before installation:Careful preparation work is crucial before installing GE ENERGY HYDRAN H201Ci-1.Firstly,please make sure to thoroughly read and understand the installation manual for GE ENERGY HYDRAN H201Ci-1 and its matching HYDRAN 201Ti sensor,familiarize yourself with all wiring diagrams,electrical connection requirements,and safety precautions.Choose a suitable and low vibration installation location to ensure that the controller cabinet(protection level NEMA 4X/IP66)has sufficient space for operation and heat dissipation,and avoid direct sunlight.Verify that the power supply(90-264 VAC)meets the rated requirements of GE ENERGY HYDRAN H201Ci-1 and ensures independent circuit breakers and appropriate grounding protection.Before connecting any cables,be sure to cut off the power supply of all related equipment and strictly comply with local electrical installation regulations.Confirm that all communication cables(such as RS-485)and signal cables(such as 4-20mA)are properly shielded and grounded to prevent electromagnetic interference.
Maintenance suggestion:Regular maintenance is essential to ensure the long-term reliable operation of GE ENERGY HYDRAN H201Ci-1 and its entire transformer monitoring system.It is recommended to regularly check the sealing of the GE ENERGY HYDRAN H201Ci-1 controller cabinet to ensure that no moisture or dust enters.Clean the display screen and buttons to maintain their clarity and operability.Regularly check the tightness of all external wiring to ensure there is no looseness or corrosion.Pay attention to any alarm indications on GE ENERGY HYDRAN H201Ci-1 and take timely measures based on the alarm information.Although the HYDRAN 201Ti sensor usually does not require on-site calibration,it is recommended to conduct regular system self checks to verify the functionality of the sensor and internal components.If the system malfunctions and alarms,immediately refer to the manual for troubleshooting and contact professional technical support.Regularly download and backup historical data and configurations stored in GE ENERGY HYDRAN H201Ci-1 through communication interfaces such as RS-485 or USB for data analysis and system recovery purposes.
Product Guarantee
We deeply understand the strategic significance of the transformer online monitoring system for the safety and operational efficiency of power assets,and therefore provide solid product support for GE ENERGY HYDRAN H201Ci-1.



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