EVOSYS delivers end-to-end Protection & Control services engineered to meet the stringent demands of UK Transmission, DNO, and IDNO networks. We provide a seamless transition from initial power system studies to final site energization, ensuring your infrastructure is resilient, compliant, and optimized for the evolving energy landscape.

Consultancy & Protection Philosophy

We perform comprehensive system modelling (Short-Circuit, Load-Flow) to define fault levels and coordination. Our protection philosophies are meticulously aligned with UK standards, encompassing dual-trip channels, auto-reclose policies, and sophisticated loss-of-mains protection for embedded generation and high-density EV clusters.

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Primary Equipment Protection

We design and specify advanced schemes for all voltage levels (EHV/HV/MV), including:

  • Feeder Protection: Unit (Distance/Differential) and non-unit back-up schemes.
  • Plant Protection: Differential, REF, and thermal schemes for Transformers, SGTs, Busbars, and Mesh Corners.

Automation, Control & SCADA

Our designs feature intelligent Substation Control Systems (SCS) and Bay Control architectures. We specialize in complex interlocking logic, synchronism checks, and multi-vendor SCADA integration, ensuring secure local HMI operation and remote utility control centre connectivity.

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EV Integration & Grid Monitoring

Supporting the transition to net-zero, we provide specialized EV-load profiling, transformer overload management, and revenue-grade import/export metering. We integrate power quality monitoring and fault recorders to ensure transparency across high-diversity EV feeders.

Secondary Design & Panel Manufacture

We produce detailed AC/DC schematics, wiring diagrams, and CT/VT sizing calculations. Our team manages the full lifecycle of P&C Panel construction, including marshalling, telecoms, and auxiliary DC/battery systems, all tested to utility-approved standards.

Cybersecurity & Mission-Critical Telecoms

In line with UK critical infrastructure guidance, we implement secure-by-design communications. This includes network segregation, IED hardening, and high-precision GPS/NTP time synchronization for accurate fault recording and tele-protection.

Testing, Commissioning & Handover

Our engineers conduct rigorous FAT and SAT, performing primary/secondary injection and end-to-end scheme proving. We conclude every project with a comprehensive handover pack, including O&M manuals, certified test reports, and updated relay settings databases.