Business Details
13 Years
experience
Emergency
services
Expert Partial Discharge Diagnostics in Glasgow
Established in 2013, High Frequency Diagnostics & Engineering has built a reputation as a leader in partial discharge (PD) diagnostics and high-voltage engineering solutions. Our expertise stems from over 30 years of pioneering research and field testing, spearheaded by our founder, Dr Martin Judd, a Chartered Electrical & Electronic Engineer with 40 years of industry experience. We specialise in PD surveys, monitoring, and calibration services for MV/HV/EHV electrical systems, including transformers, GIS, and wind farms. Our technical capabilities are enhanced through strategic partnerships with Instrument Transformers Ltd (ITL) and Smart Diagnostic Monitoring Technology (SDMT), providing clients with a comprehensive range of hardware and diagnostic tools. We deliver customised training courses to deepen industry knowledge of PD detection principles and best practices.Our award-winning UHF sensor calibration system, developed in 1996, remains the international standard for measuring sensor sensitivity. With ISO-certified partners and a focus on innovation, we support clients globally, from temporary monitoring solutions to permanent diagnostic installations. Our commitment to technical excellence is reflected in collaborations with academic institutions, participation in industry conferences, and contributions to international standards. We prioritise client-specific solutions, whether through bespoke sensor design or remote-access monitoring systems. Our work extends beyond core engineering, including community initiatives such as sponsoring youth sports and supporting sustainable livelihood projects.
Services
PD Surveys
Calibration Services
Monitoring Systems
Sensor Design
Technical Training
Details
- Year established: 2013
Highlights and features
- We offer 30+ years of pioneering PD research and field testing experience.
- Our partners hold ISO 9001 and ISO 14001 certifications for quality assurance.
- We provide 24/7 remote monitoring of critical HV assets.
- Our custom PD training courses address industry-specific challenges.
- We developed the internationally adopted UHF sensor calibration standard.
Associations and certifications
- ISO 9001
- ISO 14001
- UL Certification
What people say
Technical excellence
Reliable diagnostics
Responsive support
Industry-leading training
Innovative solutions
Services
Partial Discharge Surveys
We conduct comprehensive PD surveys for MV/HV/EHV electrical infrastructure, including substations, wind farms, and transformers. Our diagnostics identify insulation degradation risks, preventing unplanned outages. Clients benefit from actionable reports prioritising asset maintenance.
UHF Sensor Calibration
Our ISO-standard calibration services verify UHF sensor performance using GTEM cell technology. This ensures accurate PD detection in GIS and transformers. We offer system hire, custom design support, and production quality control.
Remote Monitoring Systems
We deploy permanent and temporary PD monitoring systems with real-time data access. Solutions include weatherproof units for outdoor installations, supporting 24/7 asset health tracking across global networks.
Technical Training Courses
Our courses cover PD detection principles, diagnosis techniques, and industry best practices. Designed for engineers and technicians, they combine theoretical knowledge with practical field applications to enhance diagnostic capabilities.
Sensor Design Consultancy
We assist in developing UHF sensors tailored to specific HV equipment requirements. Services include prototyping, optimisation, and integration with existing monitoring infrastructure for improved diagnostic accuracy.
People
Dr Martin Judd
Principal Engineer
Dr Martin Judd, founder of HFDE, is a Chartered Electrical & Electronic Engineer with 40 years of experience in high-voltage technologies. He previously served as Professor at the University of Strathclyde, leading 20 years of PD research and managing their HV Laboratory.
Questions
What is partial discharge (PD) testing?
PD testing detects electrical discharges in insulation systems, identifying early signs of degradation in HV equipment to prevent failures.
How does your UHF sensor calibration work?
We use GTEM cell technology to measure sensor sensitivity, ensuring compliance with international standards for PD detection accuracy.
Do you serve international clients?
Yes, we provide surveys, monitoring, and calibration services globally, with partnerships supporting offshore and onshore HV networks.
Can you monitor HV assets remotely?
Our systems enable 24/7 remote monitoring via 4G connectivity, with real-time data access and PD location tracking.
What training courses do you offer?
We deliver PD awareness, detection principles, and diagnosis courses tailored to engineers working with MV/HV/EHV systems.
How do you handle emergency PD investigations?
We deploy temporary monitoring units within 48 hours for urgent diagnostics, supported by our Glasgow-based technical team.
