Protection & Automation Engineering
Relay and control engineering tailored to your network — from logic and settings to modernization.
Relay Logic Design
We design protection and control logic tailored to your network's configuration — covering feeder, transformer, generator, motor, and busbar protection schemes, built around sound engineering principles and site-specific operating requirements.
Relay Logic Design in detail →Relay Setting Calculations
We calculate and coordinate protection relay settings — overcurrent, differential, distance, earth fault, and other functions — to ensure selective, fast, and reliable fault clearance across the network, minimizing downtime and equipment stress.
Relay Setting Calculations in detail →Protection Philosophy Development
We prepare comprehensive relay protection philosophy documents, defining protection principles, coordination strategy, and design criteria for new installations as well as existing networks undergoing modification or expansion.
Protection Philosophy Development in detail →ATS Circuit Design
We design Automatic Transfer Switch (ATS) schemes for critical and essential loads — implemented as hardwired logic, configured internally within numerical relays, or via dedicated PLC-based control — delivered using both traditional hardwired architecture and modern IEC 61850 digital standards.
ATS Circuit Design in detail →Protection System Upgrades
We assess aging or obsolete protection systems and provide consultancy on upgrade strategy — migrating from electromechanical and static relays to modern numerical, IEC 61850-based digital protection platforms, with minimal disruption to live networks.
Protection System Upgrades in detail →Engineering Consultancy
We provide expert consultancy on protection and automation system design, standards compliance, and industry best practice — supporting clients through project planning, design review, and technical decision-making.
Engineering Consultancy in detail →Power System Studies
Rigorous analysis that validates design and keeps people and equipment safe.
Load Flow Analysis
Steady-state load flow studies that evaluate voltage profiles, power distribution, and loading conditions across the network — supporting planning, design validation, and operational optimization.
Load Flow Analysis in detail →Short Circuit Analysis
Fault current calculations throughout the network to verify equipment ratings, support protection coordination, and ensure system safety under fault conditions.
Short Circuit Analysis in detail →Arc Flash Studies
Arc flash hazard analysis in accordance with international standards, determining incident energy levels and appropriate PPE categories to protect personnel working on or near electrical equipment.
Arc Flash Studies in detail →Motor Starting Analysis
Analysis of motor startup behavior — voltage dip, starting current, and torque characteristics — to verify system stability and select appropriate starting methods for large motor loads.
Motor Starting Analysis in detail →Power System Stability Analysis
Assessment of dynamic and transient stability, evaluating system behavior under disturbances, generator response, and network resilience to maintain reliable operation.
Power System Stability Analysis in detail →Earthing System Design
Earthing and grounding system design in accordance with international standards — ensuring personnel safety, equipment protection, and effective fault current dissipation.
Earthing System Design in detail →Maintenance Optimization & Asset Reliability
Unplanned downtime costs far more than any preventative program. We help you move beyond reactive maintenance to a structured, risk-based Reliability Centred Maintenance (RCM) strategy — aligning maintenance with how your equipment actually fails, so maintenance spend goes where it actually reduces operational risk.
RCM Strategy Development
Reliability Centred Maintenance strategy tailored for complex industrial environments, including Oil & Gas facilities — defining the optimal maintenance task for each asset, from predictive condition monitoring to strategic run-to-failure policies.
RCM Strategy Development in detail →Criticality & FMECA Analysis
Failure Mode, Effects and Criticality Analysis that identifies asset failure modes, their effects, and operational consequences — so effort and budget are directed to your most critical assets.
Criticality & FMECA Analysis in detail →Maintenance Program Optimization
Reviewing and refining your existing maintenance framework to cut waste and improve efficiency, directing budget and manpower toward the equipment that genuinely matters.
Maintenance Program Optimization in detail →System-Wide Reliability Strategy
Reliability strategy recommendations across electrical power systems, protection equipment, and rotating machinery — a lean, optimized program built around how your assets actually fail.
System-Wide Reliability Strategy in detail →Power Automation & Control Systems
Most automation integrators come from mechatronics and process control — they write competent ladder logic but do not work in fault levels, CT saturation, grading margins or trip matrices. Most power engineers can calculate a setting but cannot configure a Modbus register map or a redundant Profinet ring. We do both, under one scope, which is why this logic can be relied on not to close out of phase or fail to trip during a fault.
ATS & Main-Tie-Main Control Schemes
Multi-source transfer logic that fixed-function controllers cannot handle.
ATS & Main-Tie-Main Control Schemes in detail →Substation SCADA & ECMS
A monitoring layer over your MV and LV network that operators can actually act on.
Substation SCADA & ECMS in detail →Power Management & Fast Load Shedding
Dropping the right load in milliseconds, before the captive grid collapses.
Power Management & Fast Load Shedding in detail →Legacy PLC Migration & Retrofit
Moving obsolete switchboard controllers to current platforms without losing the logic.
Legacy PLC Migration & Retrofit in detail →How an automation package is executed
Every automation subcontract follows the same four stages, so the client knows what exists at each payment point and nothing is assembled before the logic has been proven.
Electrical design and I/O mapping
Control schematics translated into an automated system: control transformer sizing, interlock coils, sensor supplies, and the master PLC I/O assignment schedule.
Logic and interface development
PLC algorithms, safety interlocks, communication driver mapping and HMI or SCADA runtime graphics, built from the agreed control philosophy and cause-and-effect matrix.
Virtual factory acceptance test
Every logic path verified in simulation with S7-PLCSIM Advanced and WinCC Runtime before hardware is assembled, with a screen-recorded demonstration of each failure mode and a live vFAT session over screen share.
Commissioning support
Code deployed to physical hardware, with panel testing supported in the client's workshop or remotely on site through a secure industrial VPN gateway.
Complete Technical Visibility
When combined with our power system reliability studies, RelaNex Group provides a total picture of your facility. We don't just tell you how reliable your system is today; we provide the roadmap to ensure it stays that way.
Vendor-Independent Expertise
RelaNex Group operates as a fully vendor-independent consultancy. We work confidently across all major protection relay platforms, allowing us to deliver unbiased, technically optimal solutions regardless of the equipment manufacturer already in place or under consideration. ATS schemes can be configured internally within the relays or via dedicated PLCs, in either hardwired or IEC 61850 architecture.
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