Search

Example of MV/LV network structure with dual fed main MV switchboard

Home / Technical Articles / Medium Voltage / Example of MV/LV network structure with dual fed main MV switchboard
MV dual fed switchboard with 2/3 type transfer
MV dual fed switchboard with 2/3 type transfer

Connected to article: Example of standard MV/LV network structure

Network structure:

  • MV consumer substation;
  • The main MV switchboard can be backed up by a generator set and it feeds two MV/LV transformers;
  • MV switchboard can be GIS or AIS and consist of following cubicles:
    – two incoming feeders (from utility)
    – two transformer cubicles
    – bus riser and bus coupling cubicle(s)
    – two outgoing transformer cubicles (supplying LV switchboard)
    – two cubicles connected to generators for backup power supply
  • The main low voltage switchboard has a dual power supply with coupler
  • Each bus section of the main low voltage switchboard has a UPS system feeding a priority circuit
  • The secondary switchboards, terminal boxes and motor control centers are fed by a single source

Reference: Protection of Electrical Networks – Christophe Prévé 

SEARCH: Articles, software & guides

Premium Membership

Premium membership gives you an access to specialized technical articles and extra premium content (electrical guides and software).
Get Premium Now ⚡

About Author

author-pic

Edvard Csanyi

Edvard - Electrical engineer, programmer and founder of EEP. Highly specialized for design of LV/MV switchgears and LV high power busbar trunking (<6300A) in power substations, commercial buildings and industry fascilities. Professional in AutoCAD programming. Present on