Home > Power > India’s T&D Sector at a Glance

India’s T&D Sector at a Glance

Transmission of electricity is defined as the bulk transfer of power over a long distance at a relatively high voltage, generally 132 kilovolt (kv) and above. Electricity distribution involves receipt of bulk power from transmission facilities and supply to end-consumers within a predetermined geographical area at lower voltage levels. The transmission and distribution (T&D) system mainly comprises transmission lines, sub-stations, switching stations, transformers and distribution lines.

Transmission system in India operates at several voltage levels (source: crisil):

  • Extra high voltage:  high voltage direct current,765kv, 400kv, 220kv & 132kv
  • High tension: 66kv, 33kv, 11kv
  • Low tension: 6.6kv, 3.3kv, 1.1kv, 220v

The current installed transmission capacity is only 13 percent of the total installed generation capacity. The states have lagged behind in transmission upgrades, particularly in sub-transmission and distribution networks and local area load management systems.

CEA rolls out statistics on the T&D sector.. For Aug’10 updates: click here

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Categories: Power
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