Why Choose Johnson & Phillips For Your Transformers?
We are the only high-voltage company to offer the full package. Our transformer services include maintaining, upgrading, refurbishing, installation, recycling, and redundancy.
Field Service Engineers – SAP
- We have a team of SAP engineers who are mobile throughout the UK.
- All our engineers’ vehicles carry the latest equipment for testing and installation.
- We have power transformer failure engineers who work 24/7 and 365, including on continuity of power provisions.
Protection Services
Protecting critical components such as power transformers and switchgear units is essential. We offer the following distribution transformer protection:
- HV & LV Protection & grading studies
- Relay enhancement & renewals
- Protection systems setting & commissioning
Power Transformer Upgrades
Transformers will need regular maintenance to keep up with the demand. Therefore, to increase the lifespan, transformer refurbishment and upgrades are advised, with such solutions including:
- Compound to air busbar chambers & cable boxes for dry-type terminations
- Metering upgrades – analogue to electronic digital
- Protection/metering current transformers
- Protection relay upgrades
- New inter-tripping relays
- Restricted Earth Fault
- Voltage transformers
Facilities & Backup
We operate a fully equipped workshop staffed by personnel with a wide range of experience who carry out full refurbishment and repairs to all types of switchgear and distribution equipment.
Quality & Guarantee
We operate a strict Test and Inspection Procedure on all equipment leaving our workshop. The tests comply with all relevant British Standards and are approved by major industrial users and national companies.
For any enquiries regarding your distribution transformer, get in touch.




