DFE 10KV DIGITAL DISTRIBUTION ARCHITECTURE – END TO ...

Double-cut off distribution box at the end of primary load

The simplest primary distribution system consists of independent feeders with each customer connected to a single feeder.

Grounding of the distribution box at the end of the cable tray

1 treats the cable assembly as equivalent to Class II equipment, so a single insulation fault cannot raise the tray to a dangerous voltage. If you must earth a tray for functional reasons (static discharge, RFI) . Bonding is the interconnection of metal parts to establish electrical continuity. It involves connecting cable trays to the facility's grounding system, providing a low-impedance path for fault currents and protecting personnel. In cabling projects, common wiring methods include overhead lines, cables, steel pipes, cable trays, and busbars.

European 10kV Distribution Network Automation

In Europe, Distribution Substations are being integrated and automated using microprocessor-based protection relays, bay controllers, remote terminal units, etc. Distribution system operators (DSOs) range in size from small rural utilities to large urban operators with varying capacities and structures, and operating under different regulatory frameworks. Nearly 760 pieces of 10 kV switching stations (on cable networks) will be equipped by RTUs, to provide remote observability and remote control. However, with the introduction of microprocessor based Intelligent Electronic Devices (IEDs) and the availability of affordable communication technology, Distribution Automation for fast fault detection, isolation and system reconfiguration is currently one of the major Smart Grid components. They help to reduce the frequency and duration of power outages in overhead and underground networks and improve SAIDI and SAIDI index ratios.