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Transmission System

Transmission and distribution

Transmission and Distribution

Self-supporting suspension towers (above) are commonly used for Manitoba Hydro's high voltage transmission lines across cultivated land, because the base occupies a space of only 6.5 by 7 metres, making it less intrusive for those working the land.

Transmission and distribution systems are the two main elements of an electricity transport system which has been constructed to deliver power from generating stations to customers.

The transmission system transports electricity at high voltages from the generating stations to other parts of Manitoba Hydro's provincial power system, as well as to other utilities' power systems. The distribution system transforms the higher voltages to useable levels for delivery to customers, and maintains steady voltage levels in spite of continuously changing demands for power during the course of a day or a season.

Transmission

Manitoba Hydro's transmission system transports electricity in a range from 24 kV to 500 kV. The major high voltage transmission lines operate at 115 kV, 138 kV, 230 kV and 500 kV. At the terminal stations located near major use centres, large transformers reduce the voltages to 66 kV, 33 kV or 24 kV.

Request a brochure on this topic by contacting us at publicaffairs@hydro.mb.ca.