Load Flow Studies

FAQ

Load flow studies are essential to ensuring that power systems operate reliably and efficiently. Our engineers use load flow studies to evaluate the performance and efficiency of the system, assess its ability to meet demand, and identify potential issues such as voltage drops, overloads, and unbalanced loads. 

 

We then develop strategies to optimize your system, including the installation of new equipment, the reconfiguration of existing systems, and optimize the use of resources.

Load Flow Studies chart
What is a load flow study?

A load flow study — also known as a power flow study — is an engineering analysis that calculates how electrical power flows through your distribution system under defined operating conditions. It determines voltage levels, current magnitudes, and power losses at every point in the system, providing a detailed picture of how your electrical network performs under normal, peak, and contingency loading scenarios. Load flow studies are a fundamental tool for electrical system planning, design, and optimization.

Without a load flow study, facilities cannot accurately predict how their electrical system will respond to changes in load, new equipment additions, or system reconfigurations. A load flow study identifies voltage regulation problems, overloaded equipment, and inefficiencies before they cause operational issues — allowing engineers to address them proactively through system design rather than costly reactive measures after problems emerge.

Load flow studies are recommended whenever significant changes are planned for an electrical system including the addition of large new loads, system expansions or reconfigurations, the connection of distributed generation or renewable energy sources, major equipment upgrades, and the design of new electrical distribution systems. They are also valuable for facilities experiencing voltage regulation problems, unexplained equipment overheating, or concerns about system capacity.

RW Electric: A Division of KROON’s load flow study service includes the development of an accurate computer model of your electrical system, analysis of power flow under normal, peak, and contingency operating conditions, identification of voltage regulation issues, equipment overloading, and system inefficiencies, and a detailed engineering report with findings and recommendations. Where issues are identified, RW Electric provides practical recommendations for system improvements and can manage their implementation.

RW Electric’s engineers work with you to gather the information needed to build an accurate system model. This typically includes single line diagrams, equipment nameplate data, transformer impedance data, cable and conductor specifications, load data for all significant loads, and utility supply characteristics. Where existing documentation is incomplete, RW Electric can perform a field survey to collect the necessary data.

A load flow study is often performed alongside or as a precursor to other engineering studies. The system model developed for a load flow study forms the basis for short circuit, coordination, and arc flash studies — making it an efficient starting point for a comprehensive engineering assessment of your electrical system. RW Electric can scope and deliver a full suite of engineering studies using a single integrated system model.

RW Electric’s engineers use industry-standard power systems analysis software to perform load flow studies. These tools allow for accurate modelling of complex electrical networks and provide detailed graphical and tabular outputs that clearly communicate the results of the analysis. The use of recognized software tools also ensures that study results are defensible and accepted by utilities, regulators, and insurers.

RW Electric: A Division of KROON provides load flow study services throughout Kingston and Eastern Ontario, and through the BCES Global network of subsidiary companies, across the rest of North America.

Contact RW Electric at 613-634-2341 or through the request form at rwelectric.com. Our engineering team will assess your facility’s electrical system and provide a scoped proposal for a load flow study and any associated recommendations.