21, Rue Cyprian
Villeurbanne, 69100
France
Overview
Key Contact Personnel:
Marc Vittoz, Head of CERDA
Telephone: (33) 4 72 68 39 33
Year Founded:
HV Lab: 1927
HP Lab: 1929
Total Number of Employees: 50
Services
All tests are performed according to IEC, IEEE, EN, VDE, GOST, FURNAS, GB, DL and other standards or customer specifications.
High Voltage Laboratory
Testing room: D x W x H = 36 x 21 x 25 m
Testing area: D x W x H = 20 x 12 x 18 m
Testing Portfolio
• A.C. power frequency tests
• Switching impulse tests
• Lightning impulse tests
• D.C. dielectric tests
• Combined voltage tests (BiAS)
• Chopped wave tests
• Bus Current Switching tests
All tests can be performed also under rainy conditions
Technical Capabilities
| A.C. Power frequency: | Up to 1,2 MV 50 Hz |
| Lightning impulse: | Up to 2,5 MV (1,2 μs / 50 μs) |
| Switching impulse: | Up to 1,6 MV (250 μs / 2,500 μs) |
| D.C. Direct voltage: | Up to 1 MV D.C. |
| Partial discharge: | Up to 880 kV |
| RIV testing: | Up to 550 kV |
High Power Laboratory
Testing Portfolio
| Basic short circuit test duties: | Full pole 550 kV / 63 kA / 50 Hz, 60 Hz 800 kV / 63 kA / 50 Hz, 60Hz Half pole 1200 kV / 50 kA / 50 Hz |
| Short line fault tests duties: | By synthetic current injection method up to 550 kV, 63 kA |
| Capacitive current switching tests : | Up to 550 kV full pole, 50 and 60 Hz |
| Out of phase making & breaking tests | 300 kV full pole 420 kV and higher in half pole |
| Internal arc tests | Up to 80 kA |
• Commutation switching tests in D.C.
• Power supply di/dt measurement using Rogowski coils
• Arc voltage measurement tests
Technical Capabilities:
| Maximum generator output : | 2×1000 MVA+1600 MVA single phase 2 800 MVA three phases |
| Maximum short-circuit current (single) : | 100 kA |
| Maximum voltage for synthetic tests: | 1,200 kV |
| Frequency: | 50/60 Hz |
| Testing Halls : | 3 |
Medium Power Laboratory
Testing Portfolio
| Short time current withstand for:
-1 transformer: – 2 transformers: |
up to 80 kA rms for 3s and 200 kAp up to 110 kA rms for 3s and 260 kAp |
| Disconnector busbar transfer current | up to 8,000 A |
• Earthing switch breaking and making of inductive current
Technical Capabilities
| Transformers | 2 x 23 MVA + 1 x 1000 MVA |
| Regulator transformer | 10 V to 850 V and 4,000 A – Power factor < 0,15 |
Climatic & Mechanical Tests Laboratory
Testing room: D x W x H = 11 x 6 x 6.8 m
Testing Portfolio
• Operation under severe ice conditions
• Mechanical tests
• Leakage measurements: SF6, CF4, N2
Technical Capabilities:
Temperature range: from -60 °C to +60° C
Temperature Rise Tests Laboratory
Testing room: 2 parallel & independent
Testing Portfolio:
• Short term temperature rise tests
• Long term temperature rise tests
• Calculation of temperature rise values based on the resistance measurement of the current transformers
Technical capabilities:
| Tests in A.C. | Single-Phase (50/60 Hz) – up to 45 kA |
| Tests in A.C. | Three -Phase (50/60 Hz) – up to 10 kA |
| Tests in D.C. | up to 4 kA |
| Number of temperature sensors | Up to 200 x PT1000 |
| Ambient temperature | Controlled up to 40 °C. |
Value Added Services
Consulting & technical advisory
Logistics, assembly, gas handling and operational assistance
Gas mixture management including SF6, CF4, N2 and g3
Gas analysis with material lab
Mechanical endurance assets
Decontamination
Destruction after tests
Internationally recognized type tests reports covered by accreditation of COFRAC for the tested equipment according to ISO/ IEC 17025. (Accreditation N°1-0260)
ASEFA certification with inspector.
