Power System Design Services

AZCIG provides planning, engineering, and design of the core electrical infrastructure that generates, transmits, and distributes electrical power. Which includes preliminary, concept and detailed design services for distribution, transmission and generation systems (including traditional and renewable energy systems) for Network Service Providers (NSP’s) and private sector Clients. AZCIG undertakes design reviews and engineering certification-approval of third-party designs, including also technical design input and reviews for the development of project specifications and drawings for tendering purposes.

• Generation            Power plants (thermal, hydro, nuclear, renewable energy sources includes solar, wind and BESS).Distributed energy resources (DERs) such as rooftop solar, battery storage, and microgrids.

• Transmission

High-voltage transmission lines (typically 66 kV and above).

Substations with transformers, circuit breakers, and switchgear.

Protection and control systems for transmission networks.

• Distribution

· Medium-voltage (MV) and low-voltage (LV) distribution networks.

· Distribution transformers, feeders, and switchgear.

· Ring main units (RMUs) and reclosers for fault management.

• Load Centers

Industrial, commercial, and residential facilities.

Critical infrastructure like hospitals, data centers, and airports.

Power System Design Considerations

Load Analysis

Determine the electrical load requirements (peak demand, average demand, and load profiles).

Account for future load growth.

Reliability and Redundancy:

Design for high reliability with redundant components and backup systems.

Implement N-1 or N-2 contingency criteria to ensure system resilience.

Voltage Levels

Select appropriate voltage levels for generation, transmission, and distribution.

            Ensure compatibility with existing infrastructure and standards.

Power Quality

Minimize voltage drops, harmonics, and voltage flicker.

Incorporate power factor correction and harmonic filtering.

· Fault Management

Design protection systems (relays, circuit breakers, fuses) high-speed fault clearance.

Conduct fault current analysis and ensure equipment ratings exceed the maximum fault levels.

· Efficiency

Optimize system design to minimize losses in generation, transmission, and distribution networks.

Use energy-efficient transformers, conductors, plant and equipment.

· Safety

Ensure compliance with safety standards (e.g., AS, NEC, IEC, IEEE).

Implement grounding, bonding, and surge protection systems.

· Environmental

Minimize environmental impact through efficient design and use of renewable energy sources.

Adhere to regulations for emissions, noise, and land use.

· Integration of Renewable Energy

Design systems to accommodate variable renewable energy sources (solar, wind).

Integrate energy storage systems (batteries, pumped hydro) for grid stability.

Standards and Codes for Power System Design

· Australian Standards (AS)

· IEEE Standards

· IEEE 141 (Red Book): Recommended practice for electric power distribution.

· IEEE 242 (Buff Book): Protection and coordination of industrial power systems.

· IEC 60364: Electrical installations in buildings.

· IEC 60909: Short-circuit currents in three-phase AC systems.

· NEC (National Electrical Code)

· ANSI/NETA Standards