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Testing and quality assurance

Testing and quality assurance

 

 

With highly experienced and professionally trained group of engineers, RETRASIB can perform all type of tests required by international standards: routine, type and special tests.

  Each individual part of the transformer are subjected to the mechanical and electrical inspection prior to assembly: interphase measurement of voltage ratio, measurement of resistance, insulation resistance, measurement of short circuit loss prior to drying process, supervision of drying process and transformer oil dielectric strength testing.

The final testing of each transformer is carried out in our well equipped high-voltage laboratory, located near the production hall. The high voltage laboratory allows tests and trials with increased voltage and/or power of transformers and autotransformers with powers up to 600 MVA and voltages up to 500 kV.

The main equipments of the high voltage laboratory is:

·         Cascade type generator for testing up to 1000 kV AC
·         Pulse generator for voltage testing up to 2400 kV
·         Generator for testing of induced voltage (150Hz)
·         Technological equipment to simulate the operating modes of operation
·         Equipment for noise level measuring and infrared thermal imaging
·         Measuring equipment is high precision, in class from 0.1 to 0.2