High Voltage test platforms
SuperGrid Institute’s High Voltage test platforms provide
a wide range of tests and consulting services for its clients
a wide range of tests and consulting services for its clients
OVERVIEW
An exceptional set of high voltage dielectric test platforms developed to support our clients in our in-house research and innovation activity, these facilities are one of the driving forces behind our expertise in HVDC & MVDC technologies. Specialised in HV & MV substation equipment and cables, we also perform characterisation tests on solid, liquid and gas insulation media at competitive rates. Our services are aimed at HV & MV equipment and cable manufacturers, component suppliers and research laboratories with advanced testing needs.
DESCRIPTION
The High Voltage test platforms consist of several test fields dedicated to specific tests and applications.
- A 700m² faraday cage, with the possibility of separation into two test areas. These test fields are designed for GIS, AIS and cable system tests.
- An outdoor platform is also available for ageing tests on GIS and AIS systems.
- Two 20m² shielded rooms for lower voltage tests (up to 400kV).
- A hyperbaric test platform for subsea Equipment and cable testing.
AVAILABLE SERVICES
We perform tests according to the CIGRE technical brochures and IEC standards, or according to clients’ needs.
- Dielectric tests on AC & DC equipment rated up to 500 kV
- DC Dielectric and long-term ageing tests on cables with a dummy loop and GIS loop
- Bus-charging current switching tests
- Partial discharge measurements
- Cable monitoring and characterisation (leakage current, space charge)
- Characterisation of gas, liquid and solid insulation
- Technical advice and consulting services
- Combined hyperbaric and dielectric tests
This list is not exhaustive. Please contact us to express your needs so we can offer you a personalised service.

MEASUREMENTS & MONITORING
Voltage measurements are performed with factory calibrated dividers. All our HVDC generators have embedded RC dividers. Two additional PD-free dividers can be positioned to accommodate different test set-ups:
- Universal divider, up to 2000kV LI, 1400kV SI, 1000kV DC, 700kV AC
- Capacitive divider up to 800kV AC, with embedded PD measuring impedance
Specific measurements can be carried out with scientific instruments available in the laboratory (UHF systems, UV systems, Ultrasounds, electrometers, high speed camera…)
COMBINED TESTING POSSIBILITIES
- Low electromagnetic noise levels suitable for PD measurements (<500fC) and other low signal measurements (leakage current…)
- Combined tests (BIAS)
- Superimposed tests (SUIMP)
- AC and impulse cold characteristics (test during operation of the apparatus)
- Thermal electric tests overlaying current and voltage
- Combined hyperbaric pressure tests (up to 40 bars): voltage and temperature tests on HVDC & MVDC cable systems
GENERAL MAIN FEATURES OF THE HIGH VOLTAGE TEST PLATFORMS
Equipment | Specification | Other features |
---|---|---|
DC Sources | Up to 200kV Up to 400kV |
|
HVDC Sources | Up to 800kV, 30mA Up to 1200kV, 20mA |
|
HVAC Source | Up to 660kV |
|
HVAC & HVDC metal clad source |
Up to 750kV AC Up to 850kV DC |
|
Impulse generator | Up to 2000kV 200kJ |
|
High current heating system | 4 x 5kA |
|