About us
With a history of 60 years on the market, COMEM Group is connecting experience from manufacturing and supply of different types of transformer components from bushings to measurement and safety devices and accessories for smart transformers to Transformer manufacturers, Service organizations, and End-users with innovative services.
Some key products & solutions:
MeDICA
Transformers are complex but not perfect machines designed to last for approximately 30 – 40 years, with some examples which have been in service for more than 50 years.
Similar to a human body, proactive healthcare is fundamental to improve transformer life quality and increase the lifespan significantly while simultaneously lowering the total cost of ownership.
By integrating and interpreting data from online monitoring and offline testing we can build together a sustainable maintenance strategy and guarantee longer life for your transformer.
Choose MeDICA and get a complete customer solution that includes products and services that can enable a longer and more efficient transformer life cycle.
MeDICA helps you with:
- Gathering relevant transformer health data
- Building a suitable maintenance strategy
- Prolonging asset life & lowering the total cost of ownership
More info: https://comem.com/en/medica-solution/
Self-dehydrating breathers
Moisture is a leading cause of transformer aging and outages. By choosing our condition-based self-dehydrating breather, type eSDB, for your transformer, you do not need to worry about site inspections and silica gel replacement. Your transformer will be continuously secured from moisture intake, and you can collect data online required for your transformer health management remotely.
The breather is equipped with a digital interface for easy connection to smart grid applications and can be integrated into a system through a central control unit.
It is compatible with our complete eDevice family, can be connected also to third-party devices, and be part of our modular monitoring ecosystem for transformer diagnostics – MeDICA.
- The presence of a double tank in all models guarantees uninterrupted continuous automatic silica gel regeneration
- Condition-based regeneration cycle secures longer lifetime and good dehydrating performance of the breather
- Robust and compact design with no external wires for easy installation and maintenance
- Possibility to remote the control signals through common communications protocols
- USB port for direct data downloading and uploading on-site
- Temperature, humidity, and silica gel status continuously monitoring
More info: https://comem.com/en/products/self-dehydrating-breathers-for-smart-transformers-type-esdb/
Oil diagnostic devices for smart transformers type eDOC
Transformer oil’s primary functions are to insulate & cool a transformer. The oil must be stable at high temperatures and has excellent electrical insulating properties to withstand electrical & mechanical stresses and assure the safe operation of the transformer. To make sure the oil is suitable for use, the end-user must periodically control its properties. The presence of dissolved gases and moisture is an indicator of an abnormal condition and further investigation is needed to determine the next course of action.
As part of our MeDICA solution, it can also serve as a bridge to all other connected eDevices.
- Data aggregator & storage for eDevices and third-party devices
- Web interface for remote control in accordance with a cybersecurity assessment
- USB port for direct data downloading and uploading on-site
- Plug & play installation
- Oil drain valves for easy & safe oil sampling and discharging on-site
- Continuous testing on fresh oil samples
More info: https://comem.com/en/products/oil-diagnostics-devices-form-smart-transformers-type-edoc/
Transformer service
Transformer accessories are essential for providing long service life to the transformer, enabling the end-users to monitor asset health and plan for proper maintenance. We help you guarantee the highest level of performance to your transformer during the entire lifecycle.
Our offering includes:
- General Maintenance and Electrical Testing
- Transformer digitalization
- Installation & Commissioning
- Accessories replacement & retrofitting
- Oil analysis*
*in collaboration with an external accredited laboratory
More info: https://comem.com/en/service/transformer-service/
Our product offering:
Bushings
Need to fulfill a wide range of requirements depending on the transformer design, current capacity, and rated voltage. We offer an extensive range of solutions for different types of applications and environments.
Our offering includes:
- Porcelain oil bushings
- Epoxy resin bushings
- Resin silicon bushings
More info: https://comem.com/en/categories/bushings/
Conventional accessories
Enable to run transformer operations safely and efficiently and protect the transformer from the risk of damage when unexpected faults occur. The choice depends on transformer power and type. Our offering includes a wide range of solutions for different types of applications and environments.
Our offering includes:
- Breathers
- Buchholz relays
- Integrated safety devices
- Liquid level indicators
- Pressure relief devices
- Shutter valves
- Temperature indicators
- Temperature monitoring units for dry-type transformers
More info: https://comem.com/en/categories/conventional-accessories/
Accessories for smart transformers – eDevices
Enable continuous monitoring and data gathering of transformer health. The eDevices are a key enabler for the condition-based maintenance approach. All eDevices can be installed on a new transformer as well as on an existing asset. They can also complement already installed smart accessories from third-party suppliers, enabling gradual digitalization of your transformer and remote asset monitoring.
Our offering includes:
- Buchholz relays
- Contactless liquid level indicators
- Integrated safety devices
- Liquid level indicators
- Oil diagnostic devices (DGA)
- Pressure relief devices
- Self-dehydrating breathers
- Temperature indicators
- Temperature monitoring units for dry-type transformers
More info: https://comem.com/en/categories/edevices/