Ampcontrol’s highly experienced transformer engineering team assess your requirements and develop innovative and appropriate solutions. Our design engineers work with your project from concept through to final commissioning, and use the latest transformer design software including SPARON, VLN and Anderson programs and 3D mechanical design applications.
Our transformer facility features a dedicated and separate clean winding space, with a range of winding machines with expanding mandrels to suit required sizes. We work with copper aluminium, paper (including thermally upgraded paper) and Nomex coverings and continuously transposed conductors.
We have a vertical winding machine for larger power transformers and a foil winding machine for smaller distribution transformers.
Ampcontrol’s transformer facility includes slitting and mitre cutting lines capable of manufacturing transformer cores up to 75MVA with core design and construction choices of mitre, steplap and ‘V’ notch from 0.23mm to 0.3mm, with diameters of up to 650mm.
Our experienced assembly team build transformer cores, assemble windings onto the core, build the cleat and lead arrangements and manage the drying and tightening process.
We utilise four drying ovens rated up to 220°C including a vacuum oven which features cyclically applied heat and vacuums ensuring moisture and water vapour are removed from the core and winding assembly.
We have in-house fabrication facilities for the production and repair of tanks for liquid cooled (oil and other fluids) power and specialist transformers along with GNAN tanks for a range of challenging applications. Our stringent fabrication quality control standards enable us to produce high quality products.
All of Ampcontrol’s transformers undergo comprehensive testing undertaken by our experienced test engineers. Our comprehensive testing facilities feature a high voltage test bay including 1000kV/75kJ impulse testing certified to ISO/IEC 17025, DDF, SFRA, PD, noise level and harmonics testing; a routine test bay with 11kV mains connected test supply and regulator to conduct load loss, no load loss and temperature rise testing up to 75MVA 132kV; a partial discharge free high frequency generator for induced over voltage and partial discharge testing and power frequency withstand voltage testing up to 350kV.
We conduct onsite assembly and commissioning of our transformers led by our experienced technicians and engineers as well as supervision services to work with your own competent installation and service team.
Overhauling or upgrading your transformer can be a cost and time effective alternative to capital expenditure on new equipment. Our transformer overhaul work encompasses: