Electrical Division of Medium-sized Repairs and Overhauls
- Medium-sized repairs of electrical motors (synchronous & asynchronous), as well as slip-ring induction motors and HV motors up to a range of 6 kV up to 22 kV, power up to 3500 kW
- Overhauls of electrical motors in a voltage range of 400 V, 6000 V, 22000 V up to a power of 3500 kW
- Transformer overhauls in a range of 50 kVA up to 2500 kVA in a voltage range of 0,4 – 22 kV
- Repairs of mechanical parts of electrical motors:
- Repairs of bearing brackets by means of imbedding
- Shaft repairs and manufacture
- Magnetizing tests of motor packages
- Production of coil winding for HV electrical motors in F thermal category up to 160oC
- Production of coil winding for traction electrical drives up to 400 V
Detailed specification of special jobs
- Testing room of electrical motors and transformers within the range from 400 V up to 6 kV
- Dynamic balancing of rotating machine parts up to a diameter 2100 x 6500 mm and max. weight of 9 tons under max. speed up to 5000 rev/min.
- Acoustic emission of technological equipment
- Repairs and installations of HV-protections
- Vibration monitoring of axial deviations, shafts of rotating machines
- Radioscopy (RT) – welded joint tests by radioscopy
- Ultrasonic (UTT)- wall thickness measurement by ultrasound
- Capillary tests (PT) – testing of welded joints and materials regarding surface compactness
- Mechanical and technological tests of steel, non-ferrous metals and their alloys (MT) – testing ferromagnetic welded joints and materials concerning surface compactness
- Mechanical and technological tests of welded joints of steels, non-ferrous metals and their alloys (VT) – visual tests of welded joints and materials
- Metallography – material tests based on requirements
Electrical division – Management & Operation
- Production and installation of switchgears up to 2000 A, 1000 V
- Installations and repairs of cable distribution systems up to 22 kV
- Installations of new electrical machines, reconstructions of both motor-operated and lighting installations
- Repairs and measurement of cable distribution systems (HV and LV), incl. cable connecting and making cable high-voltage endings up to 22 kV
- Installations of power electronic devices (frequency convertors, soft starters, static exciters, self-regulating reheating cables)
- Electrical installations of industrial machines up to 6 kV
- Revisions, maintenance of special technical equipment, 24/7 service of production machines
- Designing in the field of HV and LV
- Complex revisions of electrical devices
- Complex maintenance of heavy current electrical machines in the range of 400V, 6 kV, 22 kV,110 kV
