High Voltage Substation Maintenance

We pride ourselves on delivering proactive & reactive high voltage substation maintenance solutions. Ensuring safe working operational integrity of our clients’ plant and equipment to support efficient power generation, transmission and distribution. TP Power Services deliver equipment inspection, partial discharge test, thermal imaging and mineral oil analysis services for preventative maintenance. A wide variety of invasive maintenance and repair solutions for a wide variety of equipment is available, including G59 protection systems for wind farms.


Inspection & Maintenance Services

TPPS Ltd delivers a range of inspection and maintenance solutions for all types of high voltage substation equipment. This includes distribution and power transformers, switchgear and associated plant. Highly trained and experienced engineers deliver high voltage maintenance services to ensure the safe operation of HV substation equipment according to the legal obligations of the Health and Safety at Work Act 1974 and the Electricity at Work Act 1989. Our mission is to ensure clients possess safe, reliable and efficient equipment to support their operational requirements. Our service department offers:


Plant & Equipment

Our engineers are experienced in the maintenance of a high voltage equipment of all ages from a wide range of global manufacturers.

  • Fluid Filled Distribution & Power Transformers
  • Dry Type Distribution Transformers
  • On-Load & Off-Load Tap Change Equipment
  • Medium & High Voltage Switchgear
  • Low Voltage Distribution Boards
  • Control & Protection Panels & Equipment
  • Isolated Phase Busduct Systems
  • Batteries & Charging Equipment
  • Neutral Earthing Resistors (NER’s)
  • Substation Earthing Systems
  • Low & High Voltage Cable Management


Service Delivery

The high voltage maintenance services we offer focus on ensuring the integrity of plant and equipment for safe operation. This is acheived by identifying any issues that may be symptomatic of internal problems with the potential to cause harm or equipment failure. Our range of services includes:

  • Routine visual inspection of substation equipment & environments
  • Regular non-invasive testing of control and protection systems
  • Identification, location and diagnosis of equipment faults
  • Ad-hoc single inspections or long term maintenance contracts
  • Thermal imaging surveys of high voltage electrical networks
  • Authorised persons for switching on networks up to 33kV
  • Liaise with relevant DNO’s to support invasive maintenance
  • Wide range of support services for testing, repair and modification
  • Comprehensive Maintenance and recommendation report
  • Services can be delivered 24/7 for invasive works and emergency responses