Transformer Repairs and Grid Connection Services

Power oil transformers are designed for long-term operation; however, their reliability depends on regular oil quality inspections and ongoing diagnostics of the transformer’s condition. In the event of a decline in performance or a failure, we assess the transformer’s condition, recommend the appropriate repair method, and carry out the necessary repairs. We perform repairs and refurbishments for all voltage levels, including specialised transformers designed for heavy-duty operation, such as furnace and test transformers.

Our services include:

• Regular inspections of transformers and tap changers
• Design and execution of transformer and tap changer repairs and refurbishments
• Design and execution of radiator and fan modifications to improve transformer cooling performance
• Design and installation of transformer noise reduction systems

For the transmission and distribution network, we also offer services and supplies focused on regulatory systems, including:

• Design and implementation of the ASRU system for providing secondary voltage regulation services using reactive power (SRUQ)
• Certification testing of the ASRU system for providing secondary voltage regulation services using reactive power (SRUQ)
• Project design, implementation, and certification of PLC terminals for providing system services.

We also offer services for newly connected and refurbished power sources:

• Preparation of grid connection feasibility studies
• Measurement of power quality for connecting the source to the grid
• Verification of system stabiliser functionality according to the methodology of ČEPS a.s. for large rotating sources connected to the transmission grid