Laboratories for HV dielectric tests
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Fixed laboratories
The laboratories are equipped for producing an installation which closely simulates real operating conditions even in case of equipment to be tested which has more complex configuration.
Plant performances enable the generation of simple and/or combined dielectric stresses on phase to ground and phase to phase configurations.
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| EHV/UHV Hall |
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| Dimensions |
45x40x35 (h) |
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| Voltage generators |
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| Pulse Generator |
4.8 MV-240 kJ |
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| PF Generators |
2x800 kV - 2,5 MVA/each |
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| Max Voltage object under test |
≤1200 kV |
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| HVDC Halls |
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| Dimensions |
40x40x25 (h) |
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| DC generators |
±2MV - 10mA ±1,6MV - 16 mA |
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| Max voltage of object under test |
≤800 kV |
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| 100 kJ Hall |
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| Dimensions |
40x40x25 (h) |
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| DC Generators |
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| Pulse generator |
1.6 MV- 100 kJ |
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| PF generator |
350 kV - 700 kVA |
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| Max voltage object under test |
≤ 400 kV |
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| Ageing tests on cables |
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| Dimensions |
20x15x6 (h) |
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| PF generator |
250 kV - 250 kVA |
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Mobile laboratories
For specific applications:
for Commissioning tests on GIS with test voltage 600 kV - 17 nF resonant circuits
for component commissioning tests or condition assessment the following equipment is avaliable:
- Mobile laboratories for dielectric tests with applied voltage AC and LI on EHV components.
- Mobile laboratories for MV cables: equipped with very low frequency (0.1 Hz) 36 kV (54 kV in DC) with a tgδ measuring system, plus measurement and location of partial discharges; 100 kV oscillating generator for measuring and locating partial discharges.
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