It is an advanced, continuous online transformer oil dissolved gas analysis and monitoring system. It is the flagship model of GE’s (now part of Baker Hughes) Hydran series products, specifically designed for real-time monitoring of the health of power transformers (as well as reactors, on-load tap changers, etc.), and can provide early warning of potential internal faults by detecting the early generation of key fault gases in the oil.

 
 
 
1. Core Functionality & Monitoring Principle
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Continuous Monitoring: 24/7 uninterrupted analysis of dissolved gases in transformer oil. 
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Key Gas Detection: Primarily detects and quantifies the following key gases produced by internal transformer faults (e.g., overheating, discharge, arcing): 
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Carbon Monoxide (CO): An indicator of cellulose insulation overheating. 
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Hydrogen (H₂): A common product of corona discharge and low-energy electrical discharges. 
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Acetylene (C₂H₂): A definitive indicator of high-energy arcing (a severe fault). 
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And the Total Dissolved Combustible Gases (TDCG). 
 
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Intelligent Sensor Technology: The H201Ci employs proven electrochemical sensor technology. A polymer membrane in the sensor allows only specific small-molecule gases (like H₂, CO, C₂H₂) to permeate. These gases then undergo a chemical reaction, generating an electrical signal proportional to their concentration, enabling precise measurement. 
2. Key Features
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Modularity & Flexibility: 
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Ci (Communications Interface) Design: This is a key feature of the H201Ci. It provides a flexible communication interface module that can be easily adapted to various communication protocols, such as: 
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This allows for seamless integration into any existing or new Substation Automation System (SCADA). 
 
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High Reliability & Low Maintenance: 
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Rugged Design: Built for harsh outdoor or substation environments, with excellent EMC and environmental resilience. 
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Long-Life Sensor: The sensor has a long operational life, typically lasting several years, reducing long-term operating costs. 
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Self-Diagnostics: The unit features self-test capabilities, reporting on sensor health, communication status, etc., ensuring data reliability. 
 
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User-Friendly: 
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Local Display & Interface: Typically equipped with a local display and keypad for easy on-site data viewing and configuration. 
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Easy Installation & Calibration: Compact design for simple installation. Features long calibration intervals, minimizing maintenance effort. 
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Data Logging: Built-in data logger stores historical data and trends for analysis. 
 
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Advanced Diagnostics & Alerting: 
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Beyond providing raw gas concentration values (ppm), the system allows for configurable multi-level alarm thresholds (Warning, Alarm). 
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Provides a more accurate assessment of fault severity by combining gas generation rates and absolute concentrations. 
 
3. Typical Applications
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Critical Power Transformers: Especially grid backbone transformers and generator step-up transformers. 
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Hard-to-Access Substations: Such as remote areas, offshore wind farms, where online monitoring drastically reduces manual inspection frequency. 
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Industrial Users Requiring High Reliability: Core transformers for industries like petrochemical, steel, and data centers. 
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A core component of Condition-Based Maintenance (CBM) and Asset Performance Management (APM) strategies. 
4. Outputs & Integration
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Analog Outputs: 4-20 mA outputs representing gas concentration or alarm status. 
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Digital Communication: Supports the various industrial protocols mentioned above via its Ci module. 
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Relay Outputs: Provides Form C dry contacts for triggering high-level alarms. 
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Data: Outputs include individual gas concentrations, gas generation rates, device status, and alarm status. 
 
 
Sales of the brand:
ABB、EPRO、GE、FOXBORO、Schneider、Rexroth、Honeywell、Bently、YASKAWA other global DCS system and PLC system, servo system of famous industrial brand.
 
☀️Tara(Sales Director)
📞Tel: + 86-13806028623
📮Whatsapp:+86-13806028623
💬Email: ydf8801@163.com
🏚️Ship to you via DHL/TNT/UPS/EMS/Fedex
🥇Product Condition: One-year warranty
 
requently Asked Questions:
1. How long does it take to receive the goods?
We have stock in stock and can accept same-day payment and delivery!
2. What payment methods do you accept?
There are many methods (T/T…) for you to choose from, and you can choose whatever you want.
3. Is there after-sales service?
Of course, if our products are brand new, they have a one-year warranty!
4. What courier services do you accept? We offer SF Express, DHL, and other international express delivery options.
5. How can I contact you?
You can contact me 24/7 via WeChat, Skype, WhatsApp, LINE, and my email!
 

Company Profile
Xingchuang Ronghe (Fuzhou) Electric Co., Ltd. is a company specializing in the sales and technical services of spare parts for the world’s top industrial automation systems. With our profound industry experience and stable supply channels, we provide domestic and foreign customers with original, authentic, complete models, and fast-delivered precision spare parts solutions. We are your reliable partner in ensuring production continuity and stability.
We specialize in distributing the following core brands and product lines:
ABB
-  Process Control: ABB DCS process control system full range of components.
- ABB FreeLance AC800F power modules: SA801F/SA811F/SD802F/SD812F, EI811F/ABB EI812F/ABB EI813F, etc.
- ABB S800 analog I/O modules: AI801/AI810/AI825/AO801/AO845/AO895
- ABB S800 digital I/O modules: DI801/DI810/DO801/DO810
Bently Nevada
3500 Module Mainboards: 3500/42, 3500/45, 3500/40, 3500/50, etc.
(CPU Modules): 3200/32, 3500/25
3500 Module Minimum Cards: 128229-01, 128229-01, 133442-01, 125800-01, 167699-02, etc.
Extension Cables: 330850-50-05 (for preamplifier), 330730-040-00-00, 330103-00-06-10-02-00, etc.
EPRO
-  MMS6000 TSI System: MMS6110/MMS6210/MMS6220 series monitoring modules.
 Sensors: Proximitor sensors CON011, CON021, CON031, etc
GE
- PLC Systems: IC693, IC695, and IC697 Series Modules.
- Drives and Protection: GE DRIVE SYSTEMS Series Inverters, SR Integrated Protection Frame Series.
Rexroth
- Drives and Motors: Full range of Rexroth servo drives and controllers; models include: servo motor 2AD160B-B0350R2-BS03-D2V1, MSK040C-0600-NN-M1-UP1-NSNN, etc.
- Rexroth communication boards and amplifier boards: MTS-P01.2-D2-B1-E1-NN-NN-FWEP, VT-VPCD-1-1X/V0/1-0-1, VT5006-17B, etc.
Siemens
· Process Instruments and Controllers: Siemens MOORE series, common models include: QLCDM024DCBAN, 39ACM24BEN, 39AC12T4V1, 16114-171, etc.
· Automation Systems: Full range of SIMATIC S5 PLCs, SIMATIC S7-400 CPU modules and expansion modules, Simatic C7 systems, and various Siemens touch screens.

 
											 
				
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