Specialist Engineering Services

HV/LV Protection, Testing & Commissioning

Engineering services for utility-scale Battery Energy Storage Systems (BESS), renewables, rail electrification, and transmission & distribution networks up to 132kV.

Direct Contact Explore Services
Up to 132kV
Substation commissioning & HV protection testing
IEC 61850
GOOSE matrix, MMS, PRP/HSR redundant networks
BESS & Renewables
Utility-scale storage, solar PV & wind integration
ENA EREC G99
Grid code compliance auditing & DNO witnessing

Engineering Services

Precision commissioning and technical leadership delivering risk-free substation energisation.

01

Protection Relay Configuration & Logic

Comprehensive custom logic development, tripping matrices, and parameter configuration for numerical IEDs (including ABB Relion REX640, REF615, RED615, Siemens SIPROTEC, and MiCOM). Advanced scheme design for transformer differential, restricted earth fault, and AVR/tap changer control.

02

Substation Automation & IEC 61850

Design, configuration, and end-to-end verification of digital substations. Specialist engineering of GOOSE trip/block schemes, managed Ethernet switch architectures, PRP/HSR redundancy rings, and direct SCADA integration.

03

Full-Scope Electrical Testing & Commissioning

Rigorous full-scope site commissioning: secondary injection testing, CT/VT magnetisation and ratio checks, overall tripping audits, primary plant diagnostics, and formal ENA EREC G99 compliance testing.

04

Operating Philosophies & Site Leadership

Direct technical site leadership, authoring high-voltage operating philosophies, safety coordination, and managing formal witness testing alongside DNOs and client representatives through to final energisation.

About Azetech Limited

Specialist High Voltage (HV) and Low Voltage (LV) electrical testing, protection commissioning, and substation automation engineering.

Operating across utility-scale Battery Energy Storage Systems (BESS), renewable energy generation, transmission & distribution networks, and rail infrastructure, we deliver high-complexity engineering solutions up to 132kV.

Our focus centers on numerical protection relay configuration, complex scheme logic, and IEC 61850 digital substation architectures. We deliver expert on-site commissioning and testing to protect critical assets, ensure full network compliance, and bring substations safely to energisation.

Technical Capabilities & Protocols

Engineered to meet the standards of UK DNOs, National Grid, and major EPC contractors.

Protection Hardware

  • ABB Relion (REX640, REF615, RED615)
  • Siemens SIPROTEC 4 & 5
  • Schneider / MiCOM Relays
  • Differential (87T) & REF (87N) Schemes

Automation & Protocols

  • IEC 61850 (GOOSE, MMS, Sampled Values)
  • PRP / HSR Redundancy Rings
  • Managed Industrial Ethernet Switches
  • Modbus TCP & DNP3 SCADA Gateways

Compliance & Standards

  • ENA EREC G99 Compliance Audits
  • Overlapping CT Zone Diagnostics
  • Intertrip & Anti-Islanding Verification
  • Client & DNO Witness Energisation

Direct Engineering Contact

Discuss an upcoming project, commissioning scope, or protection engineering requirement directly.

Telephone / WhatsApp +44 (0) 7488950922

Company Directorship

Azetech Limited operates across the UK and internationally, delivering expert testing, commissioning, and consultancy services.

Incorporated in England & Wales