Services for Disconnectors
Disconnectors guarantee the safety of the people working on high voltage networks, providing a visible and reliable air gap isolation. With the experience of more than 100,000 high voltage disconnectors manufactured and installed, GE Vernova supports customers’ needs to minimize equipment failure rates while maximizing employees’ safety.
These services, performed by local trained and certified Field service engineers, allow fast response time and cost effective service for optimized customer asset availability and life time.
Services for Disconnectors
Disconnectors guarantee the safety of the people working on high voltage networks, providing a visible and reliable air gap isolation. With the experience of more than 100,000 high voltage disconnectors manufactured and installed, GE Vernova supports customers’ needs to minimize equipment failure rates while maximizing employees’ safety.
These services, performed by local trained and certified Field service engineers, allow fast response time and cost effective service for optimized customer asset availability and life time.
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Circuit Breaker Services
For Air & Gas Insulated and Generator Circuit Breakers
Circuit breakers automatically protect installations against phase-to-phase short circuits as well as phase-to-earth short circuits and optimize the reliability and efficiency of operating networks. Operators require cost-effective solutions to avoid unscheduled downtime, major failure and the subsequent penalties.
GE Vernova provides a full range of services on the three different types of insulating technologies: minimum oil, air blast and SF6 circuit breakers.
Circuit Breaker Services
For Air & Gas Insulated and Generator Circuit Breakers
Circuit breakers automatically protect installations against phase-to-phase short circuits as well as phase-to-earth short circuits and optimize the reliability and efficiency of operating networks. Operators require cost-effective solutions to avoid unscheduled downtime, major failure and the subsequent penalties.
GE Vernova provides a full range of services on the three different types of insulating technologies: minimum oil, air blast and SF6 circuit breakers.
Transformer Services
Power transformers are critical for ensuring a sustainable supply of power to prevent outages. With the loss of insulation being irrecoverable, transformer failure risk can be minimized only if oil quality is maintained, moisture is controlled, temperatures are managed, incipient faults are detected and corrected, and an overhaul is conducted at midlife.
GE Vernova provides specialized technical services during the whole lifecycle of all high voltage transformers:
Transformer Services
Power transformers are critical for ensuring a sustainable supply of power to prevent outages. With the loss of insulation being irrecoverable, transformer failure risk can be minimized only if oil quality is maintained, moisture is controlled, temperatures are managed, incipient faults are detected and corrected, and an overhaul is conducted at midlife.
GE Vernova provides specialized technical services during the whole lifecycle of all high voltage transformers:
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Gas-insulated substation Services
Services are performed by local trained and certified field service experts fully equipped for SF6 gas handling up to decommissioning and SF6 reclamation process. GE Vernova provides a wide set of services that allow fast response time and cost effective solution for optimized customer asset availability and life time.
Gas-insulated substation Services
Services are performed by local trained and certified field service experts fully equipped for SF6 gas handling up to decommissioning and SF6 reclamation process. GE Vernova provides a wide set of services that allow fast response time and cost effective solution for optimized customer asset availability and life time.
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HV/MV Services by Application
Optimizing asset reliability, up-time and performance
GE Vernova’s innovative and high-quality services help maintain and optimize high-voltage electrical assets throughout their entire lifecycle. Leveraging the design and manufacturing knowledge of our skilled engineers, the customized service solutions ensure the substations and networks perform as planned. Field and technical experts deliver services for applications across the power system, keeping assets up-to-date, safe, reliable and efficient while improving customers’ return-on-investment.
HV/MV Services by Application
Optimizing asset reliability, up-time and performance
GE Vernova’s innovative and high-quality services help maintain and optimize high-voltage electrical assets throughout their entire lifecycle. Leveraging the design and manufacturing knowledge of our skilled engineers, the customized service solutions ensure the substations and networks perform as planned. Field and technical experts deliver services for applications across the power system, keeping assets up-to-date, safe, reliable and efficient while improving customers’ return-on-investment.
Asset Lifecycle Management Services
Learn more about GE Vernova’s ALM services
GE Vernova’s Asset Lifecycle Management (ALM) services encompass a set of flexible solutions to optimize transmission and distribution electrical substations maintenance and replacement strategy. The services are designed to meet the customers desired level of outcome in terms of asset availability, risk management and total cost of ownership.
ALM services combine GE Vernova’s expertise in grid asset maintenance and reliability management with an innovative end-to-end set of digital applications and tools suitable for all types of asset independently of the original equipment manufacturer.
The ALM Services include:
- A comprehensive portfolio of methods to collect asset health data, including advanced non-intrusive inspection services and online condition monitoring solutions and Oil analysis.
- A set of proven analytics supplied by EnergyAPM, the GE Vernova's Asset Performance Management software designed for T&D assets software delivering Asset Health Status, Estimated Residual Life, Probability of Failure and Maintenance Recommendations.
- Flexible service agreements providing specialized expertise and guaranteed performance that fit specific customer requirements to achieved their operational objectives
- Customized consulting services to build and maintain a solution tailored to support operators to achieve their asset lifecycle management goals.
Explore Grid Asset Lifecycle Management Solutions Developed by Grid Field Experts
Whether its transmission, generation, distribution or industry and infrastructure electrical assets, GE Vernova provides the models and tools to enable customers to meet their company objectives in terms of:
- Reliability - by reducing outages, assessing and mitigating operational risks
- Cost efficiency - by maximizing asset life while optimizing maintenance costs and hedging risk costs, with particular care taken for ageing infrastructures
- Strategy - by providing the information needed to establish corporate asset investment plans and performance objectives with regulators and shareholders
- Organization - by capitalizing on electrical know-how in the context of an ageing workforce and aligning departments with consistent goals for increased efficiency
Visit the Asset Lifecycle Management webpage to learn more about these services, as well as the ALM services tailored to HV/MV equipment including circuit breakers, instrument transformers, disconnectors, gas-insulated substations, transformers and systems.
Maintenance & Repair Services
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GE Vernova recommends regular maintenance on equipment to ensure optimal operation and to reduce the risk of failure. Maintenance plans must be carried out by a qualified field services supervisor with the prerequisite technical levels. During warranty period, various maintenance levels must be conducted by the manufacturer on a regular basis related to the equipment. GE Vernova’s local teams can support its customers with emergency repairs, time-based, predictive and corrective maintenance.
Maintenance
- Preventive maintenance
- Condition based maintenance
- Trouble shooting repair
- End-of-life management
- Decommissioning solutions
Spare parts management
- Spare parts kits for maintenance & repair
- Strategic spare parts stock for critical or out-phased equipment
- Spare Parts Pooling reducing outage duration and inventory cost
Permanent hotline
- 24/7 technical support
- Guaranteed response time
- Grid Experts Escalation
Learn more about the specific maintenance and repair services available for HV/MV equipment, including circuit breakers, instrument transformers, disconnectors, gas-insulated substations, transformers and systems.
Renovation & Modernization Services
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High voltage substations are very valuable grid assets, and are critical for grid reliability and availability. After decades of operation, grid operators may foresee risks of increasing failure rates in these assets due to electrical and environmental stress. Operators may also have needs for evolving power demand or for standard or technological enhancement.
GE Vernova supports the decision-making process by providing a cost efficient solution for substations and products requiring improved performance, or to resolve some obsolescence issues. GE Vernova’s engineered solutions are based on condition and life assessment of any high voltage equipment including third party original equipment manufacturer.
Renovation and overhaul to expand the life of ageing equipment
- Conduct the overhauling of the substation
- Change some key parts with no major upgrade
Modernization (retrofit and upgrade) to solve obsolescence
- Add monitoring on operating assets, including continuous online monitoring
- Implement last technology solution on brownfield assets
- Change/retrofit some key parts with major upgrade, including circuit breaker retrofit for GIS
Extension to address evolving network needs
- Install additional bays and/or poles to an existing substation (legacy, third party or mix)
Learn more about the specific maintenance and repair services available for HV/MV equipment, including circuit breakers, instrument transformers, disconnectors, gas-insulated substations, transformers and systems.
Technical Training and Certification
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Training matters. It’s the key to enabling staff to maintain peak equipment performance in a safe environment. Gaining hands-on experience and enhancing technical skills will add long-term value to your business and career. You can rely on GE Vernova’s technical expertise to support your team’s development.
GE Vernova’s network of Technical Institutes offers a full range of training in electrical grid safety, operations and maintenance of our power equipment, protection and control, and network management solutions, near your location. These value-adding courses encompass all aspects of electricity from fundamentals to in-depth equipment knowledge. Trainees benefit from trainers’ expertise in techniques and field experience combined with pedagogy.
Learn more about our HV/MV technical training.
Global Expertise Delivered Locally
GE Vernova aims to deliver continuous field operational excellence through its broad service experts network. Providing the highest level of quality of services as well as the competence development of the technicians and supervisors is GE Vernova’s top priority. GE Vernova’s subject matter experts’ competencies, qualification levels and certifications are checked regularly in compliance with local regulations and strict internal GE Vernova standards. As a result, wherever our customers are located, GE Vernova provides the best field experts to ensure complete satisfaction.
Services for Instrument Transformers
Internal dielectric strength degradation is the main risk affecting the lifetime performance of an instrument transformer. Contributing to 70% of the failures, it can ultimately cause a fire or explosion that can damage nearby high voltage assets. The degradation can be due to overheating, short circuit, oil leakage from gasket deterioration caused by tough environmental conditions, or the humidity contained in oil-impregnated cellulose insulation.
Services for Instrument Transformers
Internal dielectric strength degradation is the main risk affecting the lifetime performance of an instrument transformer. Contributing to 70% of the failures, it can ultimately cause a fire or explosion that can damage nearby high voltage assets. The degradation can be due to overheating, short circuit, oil leakage from gasket deterioration caused by tough environmental conditions, or the humidity contained in oil-impregnated cellulose insulation.
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Materials and Eco-Design Studies
For High Voltage Solutions
GE Vernova delivers materials and eco-design studies for high voltage solutions to accelerate insulation and environmental innovation. GE Vernova’s services provide the expertise and methods that enable new value to support customer engineering, sourcing, quality control and EHS activities.
The technical studies, tests and impact evaluations support:
Materials and Eco-Design Studies
For High Voltage Solutions
GE Vernova delivers materials and eco-design studies for high voltage solutions to accelerate insulation and environmental innovation. GE Vernova’s services provide the expertise and methods that enable new value to support customer engineering, sourcing, quality control and EHS activities.
The technical studies, tests and impact evaluations support:
Reducing Environmental Footprint
Eco-Design
- Life cycle assessment
- Environmental regulations studies
- End-of-life manuals
- Eco-design methodology training
Inspections & Homologations
- Characterization of solid, liquid and gaseous materials
- Compatibility tests
- Supplier homologation
- Material homologation
- Post event analysis
Analyzing Corrosion & Metallic Materials
Investigation
- In-depth investigation of corroded parts and corrosive material
- Moist heat cycling, salt fog tests
- Mechanical tests, microscopy
Anti Corrosion
- Selection of the anti corrosion coating including paint and grease
Material Selection
- Selecting the correct material class based on atmosphere corrosivity
Supporting Development of Insulation Materials
Solid Insulation
- Mechanical characterizations
- Thermal and electrical aging studies
- Lifetime study
Liquid Insulation
- Development of mineral and ester oils
- Diagnostic techniques
- Composite systems
Gaseous Insulation
- Development of environmentally friendly gas and mixture
- Gas analysis: new and arced SF6 and g3
The R&D studies support the development of many types of insulation material, provide corrosion and metallic material analysis and help reduce the environmental footprint of equipment and technologies. Type of materials supported:
Solid Insulation
- Epoxy
- Thermoplastics
- Composite insulators
- Ceramic insulators
Liquid Insulation
- Mineral oil
- Ester oil
- Silicone oil
Gaseous Insulation
- SF6
- Environmentally friendly alternative
Benefit of Working With The “Disruptive” Team With Extensive Expertise
Studies are delivered by GE Vernova’s Subject Matter Experts based in the Global Technology Center. The team is active in international working groups and delivers lectures at technical conferences including CIGRÉ, Matpost, IEEE, CEIDP, IEC.
The GE Vernova materials and eco-design team members have filed over 35 patents in the last 15 years and bring disruptive technologies to the industry, examples include:
DWatch
Intelligent Monitoring and Control of Disconnectors
GE Vernova's DWatch performs permanent real time monitoring of the operational parameters of disconnectors and records all operating curves locally.
The DWatch also controls the speed of the live part during opening and closing in a specific and programmable manner for all disconnector types. These profiles can be easily set by internal dip-switches. Such control helps in always having a constant operating time in different conditions of power supply and load.
DWatch
Intelligent Monitoring and Control of Disconnectors
GE Vernova's DWatch performs permanent real time monitoring of the operational parameters of disconnectors and records all operating curves locally.
The DWatch also controls the speed of the live part during opening and closing in a specific and programmable manner for all disconnector types. These profiles can be easily set by internal dip-switches. Such control helps in always having a constant operating time in different conditions of power supply and load.
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Power Connectors
Simply Connecting Power
Power connectors join two or more conductors for the purpose of providing a continuous electrical path. GE Vernova offers tap, terminal, splice and non current carrying connectors.
The GE Vernova portfolio offers an extensive range of HV power connectors for substations. Several other types of connectors not mentioned are available, or can be specifically designed.
Power Connectors
Simply Connecting Power
Power connectors join two or more conductors for the purpose of providing a continuous electrical path. GE Vernova offers tap, terminal, splice and non current carrying connectors.
The GE Vernova portfolio offers an extensive range of HV power connectors for substations. Several other types of connectors not mentioned are available, or can be specifically designed.
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HYpact
Hybrid compact switchgear assembly
HYpact is a hybrid compact switchgear assembly that typically consists of circuit breakers, disconnectors, and earthing switches located in a common gas tank. Current and voltage transformers can be added and the standard SF6 to air bushings can be replaced with cable connectors. Its modular design allows for a large variety of different layout configurations and enables a more economical substation design.
HYpact
Hybrid compact switchgear assembly
HYpact is a hybrid compact switchgear assembly that typically consists of circuit breakers, disconnectors, and earthing switches located in a common gas tank. Current and voltage transformers can be added and the standard SF6 to air bushings can be replaced with cable connectors. Its modular design allows for a large variety of different layout configurations and enables a more economical substation design.
GE Vernova Advantage
HYpact assembly enables more economical substation design and operation, with savings to be achieved in space consumption, preparation planning, transport and at-site installation, switchyard cost and maintenance. Operators also choose HYpact where space is ample to benefit from the long maintenance periods. Compared to conventional air insulated substations, the maintenance-free periods of substations using HYpact can be tripled or even quadrupled.
In addition to savings in space and maintenance, HYpact largely reduces the switchgear’s exposure to environmental influences, thus providing an economic alternative to gas-insulated substations in places being heavily polluted, or under extreme weather conditions.
- Space-saving thanks to the integration of the circuit breaker, disconnector and earthing switch into one gas tank
- Reduced civil works
- Very limited substation engineering
- Use of standardized components
- Easy installation and commissioning
Key Features
The HYpact hybrid compact switchgear assembly is uniquely suited for a variety of situations, including space constrained installations and use in polluted or seismic environments. In addition, it also qualifies for mobile applications, either installed on trailers or on skids.
Due to the low number of bushings and the avoidance of movable contacts, pure SF6 gas Hypact units perform well in harsh climates, even under heavy snow and ice load, or at temperatures as low as -60°C (GOST FK certification).
- Rated voltage: from 123 kV up to 170 kV
- Rated normal current: 2 500 A
- Rated short-circuit current: 40 kA
- Encapsulated switchgear in SF6 gas
- Slip over current transformers
- Different versions available:
- Current transformer on both sides
- Single and three pole operation
- Disconnector/earthing module on both sides
- Single or double busbar
- Cable sealing
Benefits
- Space-saving thanks to the integration of the circuit breaker, disconnector and earthing switch into one gas tank
- Reduced civil works
- Very limited substation engineering
- Use of standardized components
- Easy installation and commissioning
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