HV Components
Specifications, design review, testing, manufacturing inspections, life assessment and failure analysis on every class of high-voltage component: power and distribution transformers, dry-type transformers, isolator switches, bushings, dividers, circuit breakers, capacitors, reactors and GIS.
Transformers
Medium-voltage dry-type transformers and medium- and high-voltage oil-immersed transformers, from the technical specification to the acceptance test. Large power transformers have a service of their own.
Isolator switches
Specification and acceptance of disconnectors and earthing switches for outdoor substations: contact design, mechanical endurance, corrosion protection, and the checks after installation.
Bushings
Condenser bushings for transformers and walls: dielectric design, capacitance and power-factor measurements, thermal behaviour, and their part in the transformer failures we have investigated.
Dividers
Capacitive and resistive voltage dividers for high-voltage measurement: accuracy, linearity, and the calibration of the measuring systems of a test laboratory.
Also covered: circuit breakers, capacitors, reactors, gas-insulated switchgear, synchronous machines and medium-voltage cables.
The same four steps, whatever the component.
- 1
Read the requirement
The application, the network conditions and the applicable IEC or IEEE standards become a technical specification.
- 2
Check the design
The manufacturer’s calculations and drawings are reviewed before production starts.
- 3
Witness the tests
Factory and site tests are witnessed and every value is compared with the guarantees.
- 4
Follow the life
Condition assessment, life estimation and, when needed, the failure analysis.
What you receive
- Technical specification
- Design review report with findings
- Test witnessing report
- Condition assessment
- Failure-analysis report with root cause
- Brazil, 2016
GIS diagnostics after installation
- Position
- GIS testing expert
- Duties
- Field PD diagnostic testing (acoustic method) of GIS after installation.
- Perú, 2017
Condition assessment of MV cables
- Position
- MV cables diagnostics expert
- Duties
- Condition assessment of two MV-cable feeders to a mine mill.
- USA, 2018
Synchronous Generator Factory Tests
- Position
- Electric Machines Testing Expert
- Duties
- Factory tests on 240 MVA synchronous generator.
- Italy, 2017
Stator Bars Failure Analysis of Large Power Station Generator
- Position
- Generator diagnostics expert
- Duties
- Root-cause study of stator-bars insulation damage in a 320 MVA power-station generator.
Which component, and at what stage?
Specification, factory, commissioning or in service: tell us where you are and we say which step applies.
- Call
- +39 331 781 7077
- Brochure
- HVCC brochure, PDF