Services
Field Services
Testing Services to Verify Electrical System Reliability
Whether designed for Utility, Industrial, Oil & Gas, Renewable or Commercial use, electrical commissioning and testing can make a dramatic difference in a system’s reliability and efficiency by preventing unexpected failures at startup and beyond. Expanse offers a wide range of testing processes and services to ensure the reliability, efficiency and security of both new and existing equipment in extra-high voltage (EHV), high voltage (HV), medium voltage (MV) and low voltage (LV) electrical systems.
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Why Expanse
Ensure New Equipment and Systems Meet Specification and Operational Requirements
It is important to ensure and verify that the electrical equipment was installed safely as designed and intended per applicable codes and standards before it is first energized. It is equally important to verify the integrity of new equipment before moving into an ongoing maintenance planning and testing program. Our acceptance testing, commissioning and start-up services:
- Discover issues prior to negative outcomes
- Correct any deficiencies before they impact high voltage, medium voltage and low voltage transmission, distribution and substation equipment or operations
- Establish a baseline for future reference
Why Expanse
Keep Your Power Delivery Assets Operating Safely with Maintenance Services
Maintenance testing and programs are essential to verifying the integrity and security of existing electrical systems and equipment. They enable you to proactively detect issues and determine if a specific component is electrically and mechanically sound. If issues are detected, you can correct them before they negatively impact critical HV, MV and LV electrical equipment and related operations. Expanse delivers maintenance testing and programs to maximize quality, safety and productivity in your components, equipment and processes.
- Annual, quarterly and monthly inspection of substations
- Infrared surveys and analysis
- Substation apparatus testing including transformers, VTs, PTs, CCVTs and arresters
- Switchgear and bus duct inspection, cleaning and testing
- Protective relay testing and calibration including electromechanical, solid state and microprocessor
- HV, MV and LV substation equipment and relay maintenance
- Oil and SF6 gas analysis and oil sampling programs
- Complete substation and plant ground grid, grounding systems surveys and testing
- HV, MV and LV cable testing and fault locating
- System power analysis
Why Expanse
Enabling Real-time Data, Anytime, Anywhere
Active monitoring and control of your systems and processes enable faster response to problems and increased efficiency of resources. Expanse provides automation systems, with built-in alerts and system controls.
- HMI/SCADA/RTU commissioning and troubleshooting
- Power management
- Microwave radio communication commissioning
- Under frequency and load shedding (UFLS)
- Under voltage and load shedding (UVLS)
- Fiber optic splicing and terminations
- OTDR testing and analysis
- Fiber splice panel/box installations
Contact Us
Connect with an Expanse Expert
Capabilities
Acceptance Testing and Commissioning
- Infrared thermography
- Power transformers and GSU transformers, including CCVTs, SSVTs, VTs and PTs
- EHV, HV, MV and LV circuit breakers
- Cable testing including AC/DC hi-pot, VLF, tan delta and partial discharge
- Power factor correction including cap banks, reactors, SVCs, power factor controllers
- Station batteries and UPS systems
- Protective relays and controls
- Station metering
- Transfer schemes
- Time travel analysis
- Power quality monitoring
- Insulation oil laboratory screen test including PCB and dissolved gas tests
- SWGR bus and bus duct inspection and testing
- Generator testing
- Grounding system survey
- HV, MV, and LV switchgear services
- Motor testing
- Oil processing for transformers and OCBs
- Power line carrier services
- Motors, controls and startup
- Generator P and C commissioning and startup
- NERC compliance testing
- Station transfer schemes
- Transformer assembly and vacuum filling
- SF6 breaker assembly and vacuum filling
Capabilities
Maintenance Planning and Testing Programs
- Annual, quarterly and monthly inspection of substations
- Substation battery inspections and maintenance
- Infrared surveys and analysis
- Oil and gas analysis and leak detection
- Substation apparatus testing including transformers, VTs, PTs, CCVTs and arresters
- Switchgear and bus duct inspection, cleaning and testing
- Protective relay testing and calibration including electromechanical, solid state and microprocessor
- Meter calibration
- Motor and generator testing
- EHV, HV, MV and LV circuit breaker testing
- Grounding systems including point to point, FOP and current injection testing and analysis
- HV, MV and LV cable testing and fault locating
- Digital fault recorder services
- Disturbance analysis
- Power line carrier tuner and line trap
- High voltage transformer load tap changer repair
- High voltage transformer leak repairs/re-gasketing
- High voltage transformer bushing replacement
- Insulating oil degasification and processing
