DURESCA® Insulated Busbar Systems
Dry-type, fully insulated busbar systems for high-current MV/HV connections.
Overview
DURESCA® insulated busbar systems are dry-type, fully insulated busbars engineered for high-current MV/HV connections. Raptronics supplies DURESCA by Moser-Glaser to utilities, EPCs and industrial users who need to move large currents between transformers, switchgear and generators in a small space.
Conventional open air busbars need generous phase spacing and clearance to earth, which takes up room that many substations and plant buildings simply do not have. A fully insulated busbar puts the insulation directly on the conductor, so phases can run close together and routes can follow the building rather than the other way around.
DURESCA combines a compact footprint, flexible routing and maintenance-free insulation. Our engineers help you work out where it fits in your single line diagram and what the connection points at each end need to look like.
Specifications
- Construction
- Dry-type, fully insulated
- Maintenance
- Maintenance-free insulation
Types
Transformer-to-switchgear links
Short, high-current connections between a power transformer and its switchgear, where a compact insulated link can replace cable terminations or open bus and shrink the footprint of the bay.
Generator connections
Connections between a generator and its step-up transformer or generator circuit breaker, where current is high and the route through the plant is often crowded with other services.
Substation connections
Links inside substations where clearances are limited, for example in indoor substations, retrofits into existing buildings, or where equipment has to sit closer together than open air busbars allow.
Applications
Substations
New builds and upgrades where available space is the constraint, including urban substations and indoor installations.
Generator connections
Power plants and industrial generation, where high current has to be carried reliably between the generator and the rest of the plant.
Transformer-to-switchgear links
Utility and industrial bays where a compact connection between the transformer and the switchgear simplifies the layout.
Applicable standards
We carry the applicable standards for your voltage class. Please reach out with your inquiries for more details.
Lead time
We offer very competitive lead times. Reach out and share your forecast with us in advance, and we can guarantee your requested lead time is met.
Frequently asked questions
What is a fully insulated busbar?
It is a busbar where the conductor is wrapped in solid insulation along its whole length, instead of relying on air as the insulation between phases and to earth. That allows phases to sit much closer together than in an open air busbar.
Why choose an insulated busbar over cables?
For high currents, cables often have to be run in parallel, with many terminations at each end. An insulated busbar can carry the current in a single conductor per phase, with fewer connection points. The best choice depends on the current, the distance and the route, and our engineers can compare both for your project.
Does DURESCA need routine maintenance?
The insulation is maintenance-free. Inspection of the terminations and connection points should follow your normal substation maintenance practice.
What do you need to quote a DURESCA system?
The rated voltage, rated current, short-circuit level, a layout or route drawing showing both ends of the connection, and details of the equipment it connects to.
Who manufactures DURESCA?
DURESCA is made by Moser-Glaser. Raptronics is the manufacturers' representative and supports selection, quotation and project coordination.
