Transformers
Transformer accessories, for new builds and retrofits.
Radiators, tap changers, protection relays, temperature indicators, breathers, bushings and the other fittings that keep a transformer protected and in service. Supplied with new transformers and as retrofit or replacement parts for units already in service.
- Supply
- New and retrofit
- Cooling and tap changing
- Radiators, fans, OLTC
- Protection and monitoring
- Relays and sensors
- Matched to
- Your rating and duty
8 product groups
The range
Bushings and Connections
Bushings and connections supplied to the voltage class and current rating required.
- Bushings
- HV, LV and neutral
- Connections
- Cable boxes and bus duct
Temperature Indicators and Sensors
Winding and oil temperature indication, with fibre optic sensing of winding hot spots.
- Indicators
- WTI and OTI
- Sensing
- Fibre optic winding hot spot sensors
Protection Relays and Devices
Devices that alarm or trip the transformer on internal faults and abnormal oil conditions.
- Relays
- Buchholz and sudden pressure relays
- Relief
- Pressure relief devices
- Indication
- Oil flow indicators, oil level gauges
Online Monitoring
Online monitoring of the oil and bushings, for planned rather than reactive maintenance.
- Oil
- Dissolved gas and moisture in oil
- Bushings
- Bushing monitoring
- Systems
- Multi parameter monitoring
Enclosures, Gaskets and Spares
Cabinets, seals and fittings, with spares packages for planned maintenance.
- Cabinets
- Marshalling and control cabinets
- Seals
- Gasket and seal sets
- Fittings
- Rollers, lifting lugs, earthing terminals, rating plates
Cooling
Radiators, fans, pumps and coolers matched to the cooling class of the transformer.
- Includes
- Radiators, fans, oil pumps, coolers
- Cooling classes
- ONAN, ONAF, OFAF
- Also
- Fan and pump control cabinets
Oil Preservation and Valves
Conservators, breathers and valves that keep the transformer oil clean and dry.
- Conservators
- Bag or diaphragm types
- Breathers
- Silica gel and automatic dehydrating
- Valves
- Sampling, drain, filter and isolation
Tap Changers
On-load and de-energised tap changers for new transformers, or to replace an ageing unit.
- Types
- OLTC and DETC
- Drives
- Motor drive units
- Control
- Protection and voltage control relays
Retrofit and replacement
For a new transformer, accessories are specified to its rating, voltage class, cooling class and site conditions. For retrofit and replacement, send the rating plate details and the part being replaced, with photos and dimensions if you have them, and we will confirm a suitable match.
Fitting and support
Fitting, commissioning and testing are available through our engineering services.
Talk to our team
Tell us what the transformer needs.
Send the rating plate details and what you need to replace or add, and we will come back with options.