Power Quality
ISC Consulting Engineers carries out power quality studies, calculations, measurements, and documentation throughout the entire project lifecycle from early design stages and grid connection studies to commissioning, troubleshooting, and optimisation of existing installations.
A stable and reliable power supply is essential for modern electrical installations. Increased electrification, renewable energy sources, battery energy storage systems, variable frequency drives, and other power electronic equipment have growing demands on power quality and the interaction between electrical installations and the power grid.
Poor power quality can lead to operational disturbances, production downtime, reduced equipment lifetime, and challenges when connecting installations to the grid. At the same time, utilities and international standards require documentation of how electrical installations impact the power system.
Our specialists combine advanced simulation tools with practical field measurements and extensive industry experience. This enables us to deliver solutions that not only comply with applicable standards and utility requirements but also contribute to reliable, safe, and efficient operation.
ISC Consulting Engineers can assist you with:
Grid Connection and Grid Requirements
New installations or modifications to existing electrical systems may require extensive documentation for grid connection. ISC analyses the installation's impact on the power grid and documents compliance with relevant grid requirements.
- Grid connection studies
- Grid Code studies
- Assessment of grid impact
- Documentation for grid operators
- Verification of technical requirements
- Technical liaison and consultancy
Harmonics and Electrical Disturbances
Variable frequency drives, UPS systems, battery energy storage systems and other power electronic equipment can generate harmonics and resonance issues that affect both the electrical installation and the power grid. ISC identifies the impact and helps determine the appropriate solution.
- Harmonic currents and voltages
- THD and individual harmonics
- Variable frequency drives and power electronics
- Resonance studies
- Harmonic filters
- Measurement and verification
Voltage Variations and Power Quality
Voltage dips, flicker, voltage unbalance and other voltage variations can cause operational disturbances and affect sensitive electrical equipment. ISC analyses power quality and assesses the results against applicable requirements and the operating conditions of the installation.
- Flicker
- Voltage dips and swells
- Rapid Voltage Changes (RVC)
- Voltage unbalance
- Voltage variations
- Power factor and reactive power
Electrical Load and System Capacity
Is there sufficient electrical capacity for new installations or future expansions? ISC analyses electrical loads, power flow and voltage conditions to identify limitations and provide a robust basis for system design and expansion.
- Load flow studies
- Load and capacity studies
- Voltage levels
- Voltage drop and voltage rise
- Active and reactive power
- Assessment of existing and future capacity
Short-Circuit and Protection Studies
Correct short-circuit levels and protection settings are essential for personnel safety, equipment protection and security of supply. ISC analyses fault conditions and the coordination between protection systems within the electrical installation.
- Maximum short-circuit currents
- Minimum short-circuit currents
- Equipment rating and verification
- Protection studies
- Protection coordination studies
- Verification of protection settings
Measurement and Documentation
When actual power quality needs to be documented or calculations need to be verified, ISC performs measurements directly on the electrical installation. Measurement data is analysed and converted into technical documentation and clear conclusions.
- Power quality measurements
- Harmonic measurements
- Flicker measurements
- Voltage variations
- Short- and long-term measurements
- Analysis and technical reporting
Troubleshooting and Operational Disturbances
Unexplained trips, overheating or recurring operational interruptions may be caused by conditions that are not immediately apparent. ISC combines measurements, calculations and power system analysis to identify the underlying root cause.
- Unexplained trips
- Production and operational interruptions
- Overheating of electrical equipment
- Voltage and current issues
- Identification of electrical disturbance sources
- Root cause analysis
Consultancy, Optimisation and Solutions
ISC provides technical consultancy and helps optimise the electrical installation. We assess technical solutions to ensure that the selected approach addresses the root cause and can be verified after implementation. From identifying the problem to implementing the final solution.
- Technical consultancy
- Assessment of technical solutions
- Mitigation of power quality issues
- Harmonic filters and compensation
- Optimisation of electrical installations
- Verification measurements and documentation
Contact
Kim Mikael Bork
Head of Electrical & Instrumentation Oil & Gas, and Renewable Energy
- +45 3527 8182
