Harmonic Surveys for Industrial Compliance and Network Safety

Our professional harmonic surveys provide the diagnostic depth you need to identify these hidden power quality issues. By analysing your electrical harmonic profile, we can ensure your installation remains compliant with UK and international standards while protecting your high-value equipment from downtime.

Understand Your Risk: Voltage vs. Current Harmonics

Is your UK business facing unexpected equipment malfunctions, overheating components, or potential penalties from the Distribution Network Operator (DNO)? These issues are often caused by “harmonics”—electrical noise that can degrade infrastructure and disrupt local power grids.

Depending on your specific operational needs, we offer two distinct types of compliance assessments to secure your power supply.

1. Voltage Harmonic Compliance (DNO Standards)

Every customer has the right to receive clean electricity from the distribution network. We perform surveys to establish whether the voltage provided by your DNO complies with the BS EN 50160 standard.

By verifying these characteristics, we help you determine if issues are stemming from your internal equipment or external grid instability, allowing for a more targeted solution.

2. Harmonic Current Emission Surveys (EMC Compliance)

Your business also has a responsibility to the local network. High harmonic current emissions can “pollute” the public electricity supply, potentially causing problems for other users and leading to regulatory fines.

Our team assesses your current harmonics against rigorous international standards, including:

• IEEE-519 (Recommended Practice for Harmonic Control)
• IEC 61000-3-12 (Limits for Harmonic Current Emissions)

By establishing a clear harmonic profile, we identify whether your installation is exporting any harmonics and provide the data needed to mitigate these risks.

Commercial Harmonic Surveys across the UK

When it comes to electrical compliance, accuracy is everything.

• Comprehensive Spectrum Analysis: We analyse the entire harmonic spectrum to produce a complete profile of your installation.
• Protect Your Reputation & Assets: Prevent damage to sensitive electronics and ensure you aren’t held liable for network issues caused by your installations emissions.
• Regulatory Peace of Mind: Our reports provide clear indication of compliance with BS EN 50160 and other engineering recommendations, helping ensure your installation complies to the standards.
• Expert Interpretation: We translate the technical measurement data into actionable insights that both project managers and electrical contractors can use to make informed decisions.

What’s Included in Your Survey?

When you book a harmonic survey with us, you receive a complete diagnostic package designed for clarity and action:

• Background Harmonic Compliance Audit: A thorough check of your background voltage harmonic limits.
• EMC Emission Analysis: Detailed measurement of current harmonics to identify the source of any local network distortion.
• Harmonic Profile Generation: A visual profile of your installation’s voltage and current harmonic levels.
• Detailed Compliance Reporting: A professional report comparing your results against IEEE-519, IEC 61000-3-12, and BS EN 50160 standards.

The Harmonic Survey Process

We follow a rigorous, data-driven methodology to ensure our results are accurate even as your power usage fluctuates.

1. Initial Consultation: Our team discusses your specific concerns—whether it is equipment failure, DNO compliance issues, or general network safety audits.
2. One-Week Continuous Monitoring: To ensure we capture a true representation of your site’s electrical behaviour (including peak and off-peak usage), we conduct a minimum of one week of continuous monitoring and data collation.
3. Analysis and Profile Development: We analyse the captured spectrum to identify specific harmonic components and assess their potential impact on the network and your internal loads.
4. Final Compliance Report: You receive a comprehensive report featuring your installation’s unique harmonic profile, clear compliance indicators, and remedial recommendations if issues are found.

Secure Your Electrical Infrastructure Today

Don’t leave your installation vulnerable to the hidden dangers of electrical noise. Whether you need to prove DNO compliance or ensure your site isn’t affecting the local grid, our harmonic surveys provide the information you need.

Contact Power Quality Expert today to schedule your survey and protect your business from the risks of harmonic distortion.