TEST LABS
Laboratory For Routine Tests On Transformers And Motors
The HVEX solution acts as a true portable transformer testing laboratory, enabling automated tests on transformers with high levels of precision and efficiency, directly at the operation site or in the field. Equipped with advanced automation technology, the system performs all tests according to IEC 60076 and tests standardized by NBR 5356, ensuring full compliance with international and national technical requirements. This approach eliminates the need to transport equipment to fixed laboratories, reducing operational costs and providing fast, reliable diagnostics for power and distribution transformers. With advanced automation technology and dedicated software, the system ensures high accuracy, repeatability, and normative compliance in all tests. Designed for flexibility and high productivity, the HVEX laboratory is capable of performing multiple tests automatically, from initial setup to execution and data storage, significantly reducing testing time and eliminating operational errors. Performed Tests: No-load losses and excitation current Load losses and short-circuit impedance Power frequency withstand voltage (AC Hipot) Induced voltage with frequency variation (Induced Test) Winding resistance measurement (Winding Resistance) Turns ratio and polarity (Turns Ratio Test) Magnetizing current measurement Short-circuit voltage measurement Automated tests with digital data recording and customized reports Technical Advantages: Automated operation with complete control via HVEX software Automatic transformer positioning and test lead connection Drastic reduction in test setup and execution time Intuitive graphical interface with model and history database Complete recording and traceability of all results Compliance with national and international standards Applications: Factory Acceptance Tests (FAT) for new transformers On-site maintenance and diagnostic tests Modernization of manufacturer and utility laboratories Reduced logistics and transportation costs for transformers to fixed laboratories Technical Standards Complied With: Brazilian Standards (ABNT): NBR 5356-1 – Routine, type, and special tests on transformers NBR 5356-3 – Electrical tests of liquid-immersed transformers NBR 5440 – Power transformers – Tests and specifications International Standards: IEC 60076-1 – Power Transformers – General IEC 60076-2 – Temperature Rise for Liquid-Immersed Transformers IEC 60076-3 – Insulation Levels, Dielectric Tests and External Clearances IEC 60076-5 – Short-circuit Withstand Capability IEC 60076-7 – Loading Guide for Oil-Immersed Transformers IEEE Std C57.12.00 – General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers IEEE Std C57.12.90 – Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers