21, Rue Cyprian
Villeurbanne, 69100
France
Overview
Key Contact Personnel:
Georges Gaudart, Head of CERDA
Telephone: (33) 4 72 68 35 41
Year Founded:
HV Lab: 1937
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
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 750 kV |
| RIV testing: | Up to 550 kV |
High Power Laboratory
Testing Portfolio
| Basic short circuit test duties: | Full pole 500 kV / 63 kA / 50 Hz Half pole 800 kV / 63 kA / 50 Hz |
| Short line fault tests duties: | Artificial line simulation up to 63 kA |
| Capacitive current switching tests : | 420 kV / 63 kA / 50 Hz full pole |
| Out of phase making & breaking tests | 300 kV full pole 420 kV and higher in half pole |
| Internal arc tests | up to 63 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 x 2,500 MVA |
| Maximum short-circuit current (single) : | 100 kA |
| Maximum voltage for synthetic tests: | 1,000 kV |
| Frequency: | 50/60 Hz |
| Testing Halls : | 3 |
Medium Power Laboratory
Testing Portfolio
| Short time current withstand for:
-1 transformer: – 2 transformer: |
up to 80 kA rms for 3s and 200 kAp up to 80 kA rms for 3s and 260 kAp |
| Disconnector busbar transfer current | up to 4,000 A |
• Earthing switch breaking and making of inductive current
Technical Capabilities
| Transformers | 2 x 23 MVA – 72.5 kV to 1200 kV |
| 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
• Icing tests
• 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 50 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.
