Calculation of earthing systems of transformer stations

Basic principle

DIN EN 50522 (VDE 0101-2):2011-11 part 2 in the version valid at the time of placing the order;
DIN VDE 0100 part 410, part 540 in the version valid at the time of placing the order;
DIN VDE 0185-305-3 in the version valid at the time of placing the order;
DIN 18014 in the version valid at the time of placing the order;
DIN VDE 0151 in the version valid at the time of placing the order;
DIN VDE 0141 in the version valid at the time of placing the order;

(Should at the time of placing the order any of the above-mentioned standards be in a period of transition between two versions, the latest version will apply.)
(In the case of IEC standards, there is no transition period between two -versions.)

Prerequisites

1. Basic information on the electrical installation (D+S data sheet)
2. Construction of transformer, e.g. solid earthing / isolated neutral
3. Optional: a fee-based site survey / project meeting

Service description

1. Result of the calculation of the cross-sectional area of the conductor depending on the material
2. The technical parameters of the electrical installation using a D+S calculation programme

Scope of service

1. Calculation of the interior earthing in the station room
2. Calculation of the protective conductor to the MEB
3. Calculation of the MEB
4. Calculation of the earthing and short-circuiting device (at primary terminals)
5. Calculation of the earthing and short-circuiting device (at secondary terminals)
6. General description (PDF document)

Document format

• All documents in the scope of service will be handed over electronically in PDF format.
• Documents can be provided in open format (e.g. .docx, .xlsx) if a separate handover document is signed to this effect.