HT Panel

To operate at higher voltages, additional decisions have to be made. Clearances need to be increased, heat behavior must change and fault energy cannot become a problem. An HT Panel must therefore be engineered practically, not just assembled with the rated components. Perfect Automation and Innovation constructs these panels to allow controlled power intake, switching and feeding whereby reliability during load changes is the foremost objective.

The design of busbars considers the short circuit calculations and temperature rise limits for continuous duty, while the selection of breakers is made with consideration given to proper protection coordination to maintain selective tripping during a fault. The internal segregation, mechanical interlocks and earthing schemes have been developed to enable safe operation during maintenance or live switching operations, while access points remain service friendly as there are always limited periods of time for shutdown on site.

The metering, relay logic, and indication are placed in such a way that they can be easily seen by operating teams. The panel structure has been designed to have sufficient rigidity to withstand the weight of cables and vibration from the connected equipment. The surface treatments and gasketing have been selected to suit the conditions at which they will be installed either enclosed in indoor electrical rooms or subject to outdoor elements.

At the time of design, provisions can be made for remote monitoring, SCADA interfaces, and future expansion of feeders.

These high voltage (HT) panels can be found in utilities, manufacturing plants, infrastructure projects, and large commercial buildings where requiring reliable protection from having stable high voltage distribution output negatively impacts the uptime and safety of operation.