Connection to the MV utility distribution network

MV technical guide

Discover in a unique guide how to design, install, and operate reliable and optimized MV solution according to latest IEC standard.
Read more about innovation and evolution to increase efficiency and sustainability of your medium voltage electrical installations.

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This chapter introduces Medium Voltage concepts related to the connection of a building or a site to the MV utility distribution network, in order to design the consumer substations: basic definitions, electrical safety, choice of equipment with LV or MV metering, ventilation, substation with generators, parallel operation of transformers ...

Chapter B - Contents

• Power supply at medium voltage
  • Main requirements for power supply at Medium Voltage and typical architectures
  • Medium voltages and current values according to IEC Standards
  • Different types of MV power supply
  • Some practical issues concerning MV distribution networks
• Procedure for the establishment of a new substation
• Protection against electrical hazards, faults and mis-operations in electrical installations
  • General principle of protection against electrical shocks in electrical installations
  • Protection of transformer and circuits
  • MV/LV transformer protection with circuit breaker
  • Interlocks and conditioned operations
• The consumer substation with LV metering
  • Functions of a substation with LV metering
  • Choice of MV equipment for a substation with LV metering
• The consumer substation with MV metering
  • Functions of the substation with MV metering
  • Choice of MV equipment for a substation with MV metering
• Choice and use of MV equipment and MV/LV transformer
  • Choice of MV equipment
  • Instructions for use of MV equipment
  • Choice of MV/LV transformer
  • Ventilation in MV Substations
• Substation including generators and parallel operation of transformers
• Types and constitution of MV/LV distribution substations
  • Indoor substation
  • Outdoor substations