Our Testing & Fault Finding Services
1. Switchgear Testing
We conduct comprehensive testing on LV and HV switchgear to ensure your systems are operating safely and reliably. Our procedures include contact resistance measurements, insulation tests, and thermal imaging to assess each component’s performance. Our expertise in switchgear testing helps to prevent faults before they happen, reducing downtime and extending equipment lifespan.
2. Circuit Breaker Testing
Proper circuit breaker operation is essential for system protection. Our team specialises in testing all types of circuit breakers, including ACBs and MCCBs, to verify they can safely interrupt faults and protect your system. With advanced tools, we carry out timing tests, contact resistance measurements, and insulation analysis to ensure each breaker is fully functional and reliable.
3. Transformer Testing
Transformers represent a significant investment, and our detailed testing procedures help safeguard their longevity. From routine diagnostic tests to comprehensive load and insulation analysis, our transformer testing services keep your units operating at peak performance. We use the Omicron Testrano 600 and B2 B100 Mobile Oil Testing Unit to perform winding resistance, ratio, and oil dielectric tests, ensuring your transformers meet operational and regulatory standards.
4. Cable Testing
Cable faults can lead to costly downtime and safety hazards. Our cable testing services identify potential weak points, allowing us to address issues before they lead to failure. We utilise the Megger Time Domain Reflectometer (TDR) and Very Low Frequency (VLF) testing to pinpoint issues across long cable networks with precision—especially useful for older installations or high-stress environments.
Our Testing Capabilities
Our equipment from Omicron, Megger, B2, Fluke, Chauvin Arnoux, DV Power, and T&R ensures accuracy and reliability in every test we conduct. Here’s what our high-calibre technology enables us to deliver:
- Accurate Diagnostics: With Omicron’s high-precision technology and DV Power’s industry-grade analysers, we provide accurate measurements that help detect even the smallest issues.
- Comprehensive Analysis: B2 and Megger tools allow us to perform a full range of diagnostic tests, from partial discharge measurements to insulation resistance, ensuring all equipment is operating within safe and efficient parameters. Fault Location Precision: Using T&R and Fluke tools, we locate faults quickly, saving you time and minimising downtime. Detailed
- Reporting: Our fault-finding process doesn’t stop at detection. We deliver in-depth reports outlining issues, potential risks, and recommended actions to get your systems back online with minimal impact on operations.
Why Choose Johnson & Phillips?
Our clients trust Johnson & Phillips because of our:
- Proven Expertise: Our team includes some of the industry’s most skilled engineers, ready to diagnose and resolve complex power issues quickly and effectively.
- 24/7 Support: Power issues don’t wait, and neither do we. Our team is available around the clock to ensure your systems remain operational and safe.
- Commitment to Quality: We use only the best equipment and testing standards, ensuring that your systems meet regulatory and operational requirements.
When it comes to testing and fault finding, Johnson & Phillips has the tools, expertise, and commitment to ensure your systems remain efficient, reliable, and safe.