Power Transformers

Description
Specifications

BRUSH are recognised as a leading independent transformer solutions provider, continuing design innovation combined with over 125 years of consultative transformer expertise ensures the most technically demanding projects are supported by a comprehensive product range.

We specialise in designing and manufacturing power transformers up to a rating of 120 MVA and up to voltage level of 132 kV Class transformers. Our optimised design offers reduced no load losses. The benefits of the step lap core build technology are low running costs and noise levels which reduces capitalisation costs of the transformer over its lifetime.

We follow a continuous improvement policy and ensure that our power transformers comply with the highest standards of modern power systems. All our transformers are manufactured in accordance with internationally recognized standards (BS, IEC and ANSI) and comply with the EU Eco Design Directive for transformers.

  • This Special Application Transformer is designed to handle non-linear, non-sinusoidal loads resulting from their use with a variety of power electronic applications such as diode, thyristor or motor drive configurations from 12, 18, 24, 36 pulse configurations.
  • Special design considerations should be used to account for the additional harmonic heating, more severe axial forces, severe overloads.
  • Low noise level transformers with advanced core build technology and variable speed fan options.
  • To ensure our temperature measurement of the windings is high in accuracy, we can offer, on request, direct hot spot measurement in windings using fibre optic sensors.
  • Compact design reduces substation footprint and total project cost.
  • Protection devices such as winding & liquid temperature indicators, pressure relief valves, oil level gauges. All can be supplied with alarms and trips in accordance with client specification.
  • Alternative cooling fluids including Midel, FR3 and Bio degradable oil from Nynas & Shell for environmentally sensitive or urban sites.
  • Tap changing by On-Load (bolt-on or in-tank) or Off-Circuit switching devices.
  • Multi windings designs up to 8 windings with various phase shifts to reduce the harmonics
  • Electrostatic shield between HV and LV windings
  • Modelling of transformer for non-sinusoidal loads at site
  • Designed for low Eddy and stray losses to reduce the heating effect of harmonics currents