Expertise in Substation Design, Power System Studies, and Consultancy
Innovative Engineering Solutions
for Power Networks
and Infrastructure
and Infrastructure
What we do
Aumpraxis: Areas of Work.
Our firm specializes in a broad spectrum of electrical substation design services and power system studies, tailored to ensure safe, reliable, and efficient operation of electrical networks across industrial, commercial, utility, and renewable energy sectors. Key areas include:
Design Assurance & Coordination
Contractor Design Review & Assurance – Collaboration with IDNOs and Utility Clients (e.g., datacentres) to review and assure contractor designs.
Electrical & Plant Design
- Plant Layout Design – Early-stage collaboration with clients and architects from concept through build stage, including detailed electrical engineering for High Voltage systems (EHV 400kV/275kV, HV 132kV).
- Cable Design (Up to 400kV) – Tender stage support with cable sizing, desktop feasibility studies, indicative trench profiles, detailed engineering including cable routes, bonding diagrams, induced voltage calculations, and trench design using DNO/NG approved software.
- Protection Design – Development of protection line diagrams, network assistance, detailed AC/DC schematics, and cable termination workbooks.
Civil & Mechanical-Electrical (M&E) Design
- Civil Design Services – Concept stage surveys, 2D/3D drawings, modeling, detailed design, and calculations through to build stage.
- M&E Design – HVAC system design, flood reports, risk assessments, heating and lighting solutions for buildings and switch rooms compliant with relevant standards.
Power System Studies & Analysis
- Load Flow and Power Flow Optimization Studies : Analyze and optimize active and reactive power flows, voltage profiles, and system losses to enhance network performance and stability.
- Short Circuit and Fault Level Analysis : Determine fault currents and assess switchgear ratings to ensure protection devices can safely interrupt faults.
- Protection Coordination and Relay Setting Studies : Develop and verify relay settings and protection schemes to guarantee selective fault isolation and minimize equipment damage.
- Harmonic and Power Quality Analysis : Evaluate harmonic distortions and voltage imbalances to maintain power quality and comply with standards.
- Insulation Coordination and Transient Overvoltage Studies : Assess system insulation levels against transient overvoltages from lightning, switching events, and fault conditions, recommending mitigation measures when necessary.
- Transformer Inrush and Motor Starting Studies : Analyze transient phenomena during transformer energization and motor starts to prevent system disturbances and ensure reliability.
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