Protection, Power System & Reliability Engineering

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 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.

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.

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.

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.

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.

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.

Short Circuit Analysis

Fault current calculations throughout the network to verify equipment ratings, support protection coordination, and ensure system safety under fault conditions.

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.

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.

Power System Stability Analysis

Assessment of dynamic and transient stability, evaluating system behavior under disturbances, generator response, and network resilience to maintain reliable operation.

Earthing System Design

Earthing and grounding system design in accordance with international standards — ensuring personnel safety, equipment protection, and effective fault current dissipation.

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 every dollar spent 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.

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.

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.

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.

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.

ABBSiemensSchneider ElectricGE (Multilin)AlstomSEL

Protection, Power System & Reliability Engineering Services