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ContactVNET a.s.
Námestie Hraničiarov 39
851 03 Bratislava
Where can you find us
Námestie Hraničiarov 39
851 03 Bratislava
Where can you find us
Technology
Power supply
- Each of the four branches is powered by its own transformer, and has its own backup generator and UPS with N +1 modules.
- The branches are in 3 +1 redundancy, and are connected using a "multiple feed" system, which means that all branches are always used equally (if one branch fails, there is no switching of the central elements of the power supply going on, as the power transfer occurs at the level of server racks).
- There are no active elements, and thus no possible points of failure between the UPS and the branch in the rack line.
- Each server has its own power consumption meter with a direct link to the VNET information system. Customers have the unique opportunity to check consumption in 15-minute intervals via the VNET customer zone.
- The Caterpillar diesel generators are equipped with twin starters, one being powered by its own generator accumulator, and the other directly from the rotary UPS, resulting in the further improvement of launch reliability.
- Digitalis uses Caterpillar rotary UPS that do not need batteries replaced regularly, so are more reliable, cleaner, and last longer.
- Legrand bus ducts are installed in the Digitalis DC. Their advantage is that even at full voltage other points of supply can be connected, and the system can be flexibly modified.
Diesel generators:
- The Caterpillar diesel generators are equipped with twin starters, one being powered by its own generator accumulator, and the other directly from the rotary UPS, resulting in the further improvement of launch reliability.
- Generators are located directly in the data centre building.
- Residual heat is also used to temper motor generators and machine rooms, saving additional electricity.
- Underground fuel tanks have adequate stock for the case of a prolonged power outage.
Bus ducts
In the Digitalis data center Legnrad bus ducts are installed.
- Bus duct is an enclosed metal unit containing copper or aluminum busbars for distribution of large amounts of power between components of the distribution system.
- Their main advantage is that even at full voltage other points of supply can be connected, and the system can be flexibly modified.
- Metal covered busbars are grounded what creates superior shielding. Thanks minimal electromagnetic interference, this system is particularly suitable for data centers.
