SERVICE OFFERINGS

A single line diagram forms the foundation for analyzing any electrical system, providing a complete overview of the power distribution network, protection, and controls. It's essential for planning subsystems and must be continuously updated as networks evolve.

ABB PSC provides complete SLD development from initial data collection via site surveys to model review and updates using proprietary and industry-standard software (ETAP, SKM, PowerFactory, etc.).

 

• **No existing model?** We conduct comprehensive site surveys, consolidating all information into an easy-to-understand format for network modeling.
• **Outdated digital twin?** We use advanced data analytics to identify missing/incorrect data and systematically model your network with precision.

We ensure your SLD accurately represents your current network state, enabling confident planning and risk mitigation.

Short-circuit studies calculate fault currents for various fault types, ensuring electrical infrastructure integrity and determining protection device settings. They are vital for safety and equipment reliability.

System modifications—such as adding generators, loads, or changing operating scenarios—directly influence short-circuit levels. Regular updates are essential to maintain accuracy.

ABB PSC applies standardized procedures, leveraging extensive experience and advanced product knowledge (fault current limiters, circuit breakers, generator circuit breakers) to perform precise fault current calculations. We avoid superficial assessments, ensuring your system protection strategy is based on accurate, detailed analysis that reflects your actual network configuration.

Load flow analysis determines steady-state voltage profiles, active/reactive power flows, and equipment loading conditions across operational scenarios. This analysis guides equipment sizing, reactive power compensation, and system optimization.

A key challenge is obtaining accurate load data, especially in legacy plants where assumptions are common. ABB PSC uses proprietary data analytics tools and advanced load modeling techniques to identify missing or inaccurate data, facilitating realistic simulations.

Our detailed results reveal voltage profiles, equipment utilization, and optimization opportunities—enabling informed decisions for system upgrades, capacity planning, and operational efficiency improvements.

Protection coordination ensure that protection devices (relays, circuit breakers) are set correctly to isolate faults swiftly and selectively, minimizing system disturbances. Proper coordination prevents unnecessary outages, enhances stability, and ensures personnel safety.

ABB PSC utilizes proprietary algorithms and tools to verify relay settings, considering system changes, device ratings, and both ABB and third-party equipment. We ensure all protection devices work harmoniously across your network.

Our comprehensive coordination studies prevent nuisance trips, optimize equipment utilization, and maintain system resilience during fault events. Regular updates align protection schemes with network modifications, ensuring continued effectiveness.

Arc flash hazard analysis evaluates energy released during arc faults, determines Personal Protective Equipment (PPE) requirements, and provides safety hazard labels for personnel protection. This is critical for workplace safety and compliance.

ABB PSC conducts thorough arc flash assessments and recommends mitigation measures. We implement active solutions such as fast circuit breaker tripping with light sensors and ultra-fast earthing switches to minimize incident energy exposure.

Our analysis ensures your facility has comprehensive, up-to-date safety procedures and hazard labeling, protecting personnel and reducing liability risks. We provide actionable recommendations for both equipment and operational improvements.

Power quality analysis assesses voltage unbalance, transients, flickers, harmonic distortion, and supply interruptions. Harmonic analysis is increasingly important due to the proliferation of non-linear loads (UPS, VFDs, power electronics).

Excessive harmonics cause equipment overheating, reduced efficiency, and premature failure. ABB PSC conducts comprehensive analyses to identify power quality issues and their root causes.

We recommend harmonic filtering, power factor correction, and mitigation devices tailored to your system. Our solutions enhance efficiency, reduce losses, extend equipment lifespan, and ensure compliance with IEEE 519 and EN 61000 standards—protecting your investment and reducing operational costs.

Motor starting analysis evaluates voltage drops and transient conditions during motor startup, ensuring compatibility with system capacity and protection settings. Proper motor starting ensures minimal system disturbance and reliable equipment operation.

 

ABB PSC conducts detailed assessments accounting for motor size, starting method, system impedance, and protection coordination. We identify potential issues such as excessive voltage sags that could affect sensitive equipment or cause protection nuisance trips.

 

Our analysis ensures your motors start reliably without compromising system stability or equipment performance. We provide recommendations for starting methods (soft starters, VFDs), power factor correction, and protection settings tailored to your specific system requirements. This prevents costly downtime and extends motor lifespan.

Power system stability analysis assesses the system's ability to maintain synchronism after disturbances—critical with increased renewable integration and distributed generation. We evaluate both transient stability (immediate response to severe faults) and steady-state stability (long-term recovery).

ABB PSC provides comprehensive stability assessments examining generator behavior, control systems, load characteristics, and network configuration. Our studies identify stability margins, critical contingencies, and potential risks under various operating conditions.

Our recommendations ensure reliable system performance, prevent cascading failures, and maintain continuous power supply during disturbances. This is essential for modern grids with renewable energy and distributed generation.

Motor starting analysis evaluates voltage drops and transient conditions during motor startup, ensuring compatibility with system capacity and protection settings.

Power system stability analysis assesses the system's ability to maintain synchronism after disturbances—critical with increased renewable integration and distributed generation. We evaluate both transient and steady-state stability.

ABB PSC provides detailed assessments and collaborates with synchronous condensers and inertia support devices to enhance grid stability. Our recommendations ensure reliable motor operation and stable system performance under all conditions, supporting your transition to renewable energy integration.

Insulation coordination selects appropriate equipment insulation levels considering overvoltage scenarios from switching, lightning, or system faults. Based on IEC 60071-1 standards, this ensures equipment can withstand all electrical stresses it encounters.

ABB PSC conducts detailed simulations to predict maximum overvoltages and recommends protective devices like surge arresters and snubbers. Proper insulation coordination prevents equipment failures, extends equipment lifespan, and reduces maintenance costs.

 

Our comprehensive coordination approach protects your equipment investment, ensures regulatory compliance, and maintains system reliability across normal and fault conditions.

Accurate instrument transformer (CT and VT) sizing is crucial for protection accuracy. Incorrect sizing causes saturation issues, relay malfunctions, or over/under-dimensioning—compromising protection effectiveness.

ABB PSC uses proprietary sizing tools considering relay requirements, system faults, and existing equipment compatibility. Our detailed analysis ensures each transformer is precisely dimensioned for your specific application.

Correctly sized instrument transformers deliver accurate measurements, reliable protection operation, and consistent system performance. This prevents nuisance trips, extends equipment life, and ensures your protection strategy functions as designed.

Overpressure calculation determines maximum internal pressure inside switchgear compartments during internal arc faults and the subsequent pressure in switchgear rooms, ensuring structural integrity and personnel safety. This guides design of pressure relief openings, civil construction, and safety measures.

ABB PSC uses proprietary calculation tools and validated testing methodologies to assess overpressure risks specific to your equipment and installation environment. Our recommendations address both equipment design and operational safety protocols.

Proper overpressure management protects personnel during rare but catastrophic internal arc events, ensures equipment integrity, and supports compliance with safety standards. Our detailed assessments provide confidence in facility safety and design adequacy.

Fault root cause analysis (RCA) identifies underlying causes of system failures—protection trips, equipment failures, over/under voltage trips, and other anomalies. This is critical for preventing recurrence and optimizing maintenance strategies.

ABB PSC conducts thorough RCA through data collection, chronological analysis, and proprietary tools. With extensive experience across diverse fault scenarios, we identify patterns and systemic issues often missed by surface-level investigations.

Our detailed RCA reports provide actionable insights for equipment upgrades, setting adjustments, and operational improvements. By addressing root causes rather than symptoms, you prevent recurring problems, improve reliability, and make informed maintenance decisions.