Electrodynamic testing plants
Electrodynamic tests require the availability of considerable space in order to reproduce the dimension of the plant in which the equipment under test will eventually be installed.
CESI has a plant divided into four distinct areas for:
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Electrodynamic tests on HV
disconnectors
Power arc tests on insulator
strings
Electrodynamic tests on power
transformers
Arcing due to internal fault on
MV switchgear.
The plant is supplied by the 220 kV network through six short-circuit transformers with the following characteristics:
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| Max Power |
Three phase tests: 3000 MVA
Single phase tests: 2600 MVA
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| Frequency |
50 Hz |
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| Voltage |
5 kV, 225 kV rms |
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| Technical features |
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| HV disconnector area |
Test current & duration |
63 kA per 3 s
85 kA per 1 s |
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Insulator
string area |
Test current & duration |
63 kA per 3 s |
|
| Available area |
1200 m² |
|
Power transformer
area |
Maximum voltage
(three-phase) |
220 kV |
|
Max rated three-phase power
of the equipment under test |
100 MVA |
|
| MV switchgear area |
Max test current |
50 kA
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