Connection to the MV utility distribution network

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

Related technical guides

MV technical guide

Helping you design safe and energy-efficient Medium-Voltage products according to IEC standards.

Download the guide (.pdf)