ABB introduces innovative solution for electrification of isolated communities

2014-04-10 - Some remote or sparsely populated communities around the world don’t have access to electricity even though there are high-voltage overhead transmission lines carrying large amounts of power close by.

The relatively low power demand from some of these communities makes the installation of a conventional substation economically unviable. Similarly, remote industrial sites such as water and petroleum pumping stations and small mining operations, which are unsupported by a conventional power distribution infrastructure, have to use expensive and polluting diesel generators to meet their power demands.

How can limited power be taken from any point along the high-voltage overhead transmission line without jeopardizing the line’s security?

The answer lies in assembling a circuit breaker, disconnecting switch, and arrestor protection onto ABB’s station service voltage transformer (SSVT), the TIP. This compact equipment can draw power from high-voltage lines with safety and reliability while minimizing environmental impact. It has low maintenance needs and an expected life span of around 30 years.

Depending upon the area to be electrified and the installation point, the SSVT can convert high-voltage power directly to low-voltage or medium-voltage power without any additional transformers or other major electrical equipment. This innovative solution, combines the characteristics of a voltage transformer with power capability. It is designed for voltages of up to 550 kV, a power capability of up to 500 kVA.

The TIP is fully assembled and tested in the factory for immediate installation and connection. It is normally installed on a raised platform within the high-voltage transmission towers. In addition to the footprint savings its installation requires up to 80 percent less material compared with the installation of a conventional substation. This, together with the use of recyclable material, reduces the environmental impact. Most importantly, it provides the same level of energy availability, quality and reliability as the high-voltage transmission network.




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