Electrical Switchgear

Electrical switchgear is at the heart of every data center. Whether medium-voltage switchgear (MS), low-voltage switchgear (NSHV) or sub-distribution (UV) on the actual data center area. 

Concept illustration: Enclosed switchgear and UPS equipment in a data centre.
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Optimized According to Your Requirements

The systems must be designed and correctly projected in accordance with DIN EN 61439 with regard to the busbar system, protective technology and measuring systems. The circuit breakers or fuse elements selected must be matched to the dimensioned cabling and must be selective. A network calculation that is inadequate or not carried out at all can not only lead to the safe operation of the data center, but in the worst case to life-threatening accidents. This is why it is so important that network calculations are carried out by experienced professionals when planning a data center.

Medium-voltage switchgear (MV) and transformer stations (TS) represent the highest voltage level in the data center and are therefore more complex in planning and execution. The required performance of these systems is provided by the wiring of transit (DG) and end users (EV). The various components of an MS must be selected and dimensioned in such a way that the TS works reliably at maximum load and taking into account bottlenecks in network operation.

A low-voltage switchgear (LHV) is electrical switchgear used to distribute electrical power in a data center. The LVMD contains switch boxes, switchgear, and transformers that step down or step up voltage to deliver the electrical power to loads in the data center.
The sub-distribution (UV) is part of the NSHV that supplies the electrical energy to the individual switch boxes.

Another challenge when planning power supply systems is dealing with emergency power generators (NSA). In the event of a power failure, it is important that the data center is supplied with emergency power as quickly as possible to ensure smooth operation. NSA must therefore be selected and adapted to the existing infrastructure in such a way that a smooth transition from the regular to the emergency power supply is guaranteed.

Electrical switchgear for available IT infrastructure

Network architecture and supply paths

Medium and low voltage, transformers, UPS and backup generation form a supply chain. Busbars, incoming supplies and outgoing circuits follow availability requirements. Separate A/B paths need consistent assignment through to the loads.

Short-circuit protection and selectivity

Rated current and short-circuit withstand must suit the network and operating states. Protection coordination aims to contain faults to the affected section. Mains, generator and UPS operation can impose different protective-device conditions.

Operation and maintainability

Panels, access and spare capacity are designed for safe operation and expansion. Metering and status signals support operations. Maintenance and transfer procedures require clear labels and documented switching sequences.

System-level testing

Protection settings, circuit diagrams and the metering concept are handed over consistently. Functional tests cover interlocks, transfers and signals. Fault behaviour must be understandable across the downstream IT supply system.

Advantage of High Knowledge

High Knowledge experts know the latest trends and developments in the industry. We have been successfully planning and implementing data centers of all sizes for over 20 years. With us you get the professional advice you need to be able to operate your data center safely and reliably. Feel free to contact us for a consultation.

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