Service
The Efacec Service unit has a team of more than 150 employees and a permanent presence in Portugal, Spain, Angola, Mozambique and Algeria.
The accumulated experience and competence allows us to provide services with the highest quality standards, certified according to ISO 9001: 2008, ISO 14001: 2004 and OHSAS 18001: 2007, ensuring adequate solutions to customers’ needs in:
- Industrial facilities
- Hydroelectric plants
- Thermoelectric power plants
- Small hydro power plants
- Co-generation plants
- Wind farms
- Substations
- Transformation stations
- Commissioning
- Assembly of accessories
- Oil and filler treatment
- Electrical tests on active part and oil
- Activation Assistance
- Improvement and repair (on-site and in factory)
- Replacement or enhancement of accessories
- Replacement of active part components (winding, magnetic circuit, on and off voltage regulators)
- Drying of the active part
- Treatment or replacement of oil
- Exterior painting
- Pre-and post-intervention tests
- Inspection / Revision of Load Regulators (on-site and in factory)
- Passivation and Regeneration of Oil
- Transformers Maintenance Management (multi-year contracts)
- Design / Installation of Monitoring Systems
- Online monitoring of various transformer parameters, including temperatures and gases dissolved in the oil and monitoring of crossings
- Transformer performance analysis
- On-site Diagnostic Tests
- Measurement of insulation resistance
- Measurement of transformation ratio
- Measurement of ohmic resistance
- Dynamic switching resistance measurement
- Capacity and delta tangent measurement (dielectric losses)
- Dielectric Frequency Response Measurement (FDS)
- Excitation current measurement
- Short-circuit impedance measurement
- Verification of the auxiliary circuits of control and protection of the transformers
- Collection of oil samples for testing in the Efacec laboratory:
- Physical-chemical
- Dissolved gas analysis (DGA)
- Detection and quantification of PCBs / chlorine content
- Determination of the amount of furan compounds
- Passivator content (when applicable)
- Corrosive sulphur detection
- Particle Content
- Frequency response analysis (FRA)
- Distribution Transformers Improvement and Repair
- Replacement or enhancement of accessories
- Rewinding
- Repair and supply of vats and lids
- Treatment of dielectric oil
- Tests
- Commissioning of MV/HV Equipment
- Assembly
- Tests
- Activation Assistance
- Revamping of LV/MV/HV Facilities and Equipment
- Replacement of circuit breakers and disconnectors
- Replacement of transformers
- Replacement of protections
- Replacement of LV and MV switchgears
- Turnkey solutions
- MV/HV Equipment Repair and Improvement
- MV/HV circuit breakers
- MV/HV disconnectors
- LV and MV switchgears
- Multiannual and Multi-disciplinary Maintenance Contracts
- Maintenance of electrical substations
- Maintenance of wind farms
- Maintenance of industrial facilities
- Maintenance of transformation stations
- Maintenance Management of LV/MV/HV Electrical Installations
- Predictive maintenance
- Preventive maintenance
- Corrective Maintenance
- Inspection with Multicopters (drones)
- Visual inspection to detect the condition of the equipment in service
- Visual inspection to detect the physical state of structures
- Thermographic inspection for detection of hot spots
- Expertise, Counseling and Training
- Diagnosis of failure of electrical power systems equipment
- Forensic analysis of defects
- Advice of technical solutions adapted to the needs of customers
- Selectivity studies
- Test and parameterization of protection relays
- Technical training
- Repair/Maintenance of LV, MV Electric Motors and Alternators
- Manufacture of coils in ResinRich or VPI system
- Low and medium voltage winding
- Repair and/or execution of rotor coils of synchronous machines
- Repair/replacement of magnetic circuits
- Repair or manufacture of rotor cages
- Collectors for AC and DC electric motors
- Repairing/replacing brushes and brush holders
- Repair of shafts
- Dynamic balancing
- Design and Development of Protection and Control Systems for Motors and Alternators
- Design, installation and testing of winding rotor motor starters
- Design/installation of voltage regulators
- Design/installation of excitation systems for synchronous machines
- Maintenance Management of Motors and Alternators at Facilities (Multi-Annual Contracts)
- On-site and Laboratory Electrical Testing
- Insulation resistance
- Absorption and polarization coefficients
- Ohmic resistance
- Inductance
- Capacity
- Magnetization
- AC and DC dielectric strength
- Tangent delta and off-line partial discharges
- Current leakage
- Shock wave
- On-Site Mechanical Analysis
- Measurement of vibrations
- ODS Analysis – Operating Deflection Shape
- Balancing
- Alignments (Laser)
- Insulation Condition Test of Rotating Machine Windings (EDA III)
- Thermographic Inspection
Efacec Digital Asset Management Solutions
Join the digital age with the new Efacec solution, powered by Doble Engineering.
Efacec and Doble have joined forces to develop and offer an exceptionally comprehensive and modular digital asset management solution supported by deep and wide-ranging expertise. The Portuguese company has worked with Doble to create a range of online condition monitoring and diagnostic packages to meet the needs of all customers in key energy sectors (Transmission, Distribution, Renewables, Industrial and Power Generation).
This joint solution boosts asset management of power transformers to a new level, combining the aggregation of relevant synchronized data together with expert critique and high-quality condition-based field services. This solution has been designed to be fitted to existing or new power transformers, to help you better understand the real condition of your power transformers while enabling optimized management of their performance.
