Delhi Transco Ltd is responsible for planning, design, construction & maintenance of the 400 KV and 220 KV system that are necessary for importing and transmitting power to the new distribution companies. Delhi Transco Limited. Committed to vanquishing your electricity problems.

The power system has three components : Generation, Transmission and Distribution. Power is generated at generating stations,       usually located away from the actual users. The generated voltage is then stepped up to a higher voltage for transmission, as  transmission losses are lower at higher voltages. The transmitted electric power is then stepped down at grid stations.

The Distribution transformers further step down the voltage for final distribution to the consumers. This section gives information about the  power system in Delhi and, since the power system in Delhi is connected to Northern grid and draws substantial power from it, also refers to the main features of power system of the country as a whole.