Built for Hazardous Areas
Delivering a Customised Automation Control Panel for a Reputed Refinery Hydrocracker Unit in Assam, India
In modern refineries, the Hydrocracker Unit (HCU) is one of the most critical process units, converting heavy hydrocarbon feedstocks into cleaner, high-value fuels such as diesel, aviation turbine fuel (ATF), kerosene and naphtha. Operating under high temperatures and high-pressure hydrogen, hydrocracker units demand precise process control, reliable electrical infrastructure and continuous plant availability.
At the heart of the hydrocracker process are compressor systems, which recycle hydrogen-rich gas and maintain the pressure required for efficient hydrocarbon conversion. These compressors are essential for process stability, product quality and refinery throughput. Any interruption in compressor performance can affect production, making dependable automation control panels, electrical systems and process monitoring solutions critical to refinery operations.
Engineering for Critical Refinery Applications
Compressor packages operate in one of the refinery's most demanding environments. The presence of hydrogen and hydrocarbon gases, combined with continuous vibration, elevated temperatures, corrosive conditions and outdoor exposure, places exceptional demands on electrical and automation equipment.
To ensure safe and reliable operation, equipment installed in these classified locations must deliver robust protection, long service life and compliance with internationally recognised explosion-protection standards. From enclosures and operator interfaces to signalling devices and motor monitoring, every component plays a vital role in maintaining process integrity and operational continuity.
A Customised Automation Solution
To address these challenges, R. STAHL India designed and manufactured a customised Automation Control Panel for compressor control applications, for a reputed refinery in the eastern part of india, integrating electrical distribution, process automation and signalling into a single engineered solution.
Designed to support continuous refinery operations, the panel enables reliable monitoring, equipment protection and operator control while simplifying maintenance and future system expansion.
Built for Process Safety and Reliability
The automation control panel incorporates Ex d, Ex i and Ex e certified components, supporting safe installation in classified refinery areas while delivering dependable performance under demanding operating conditions.
By integrating enclosure technology, industrial automation, motor monitoring, operator interfaces and signalling into one coordinated solution, the system provides:
- Reliable compressor monitoring and process control
- Improved operator visibility and alarm management
- Enhanced equipment protection
- Simplified maintenance
- Increased plant availability
- Long-term operational reliability
The solution is well suited for hydrocracker units, hydrogen compressor systems, gas compression skids, petrochemical plants, LNG terminals and other critical Oil & Gas applications.
Supporting Reliable Oil & Gas Operations
Every refinery application presents unique engineering challenges. With expertise in industrial lighting, automation control panels, electrical distribution, junction boxes, control stations, motor control, process signalling and customised engineering solutions, R. STAHL India supports the Oil & Gas, refining, petrochemical and energy sectors with technologies designed for safe, reliable and efficient operation.
From concept engineering and manufacturing to testing and project execution, R. STAHL delivers integrated electrical and automation solutions that help customers improve process safety, maximise equipment availability and optimise operational performance across critical industrial applications.













