Masterton power capacity doubled

Last updated 10:10 10/10/2012
Masterton substation

Powered up: Ian Harris (Transpower) and Masterton Mayor Garry Daniell outside the Masterton Substation on Cornwall Road which has had transformers worth more than nte $3 million installed.

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Transpower has installed more than $3 million worth of transformers at the Masterton substation, doubling capacity and setting the region up for another 50 or 60 years.

Transpower, in conjunction with the lines company Powerco, has completed the upgrade which will increase the security and reliability of the supply of electricity to all of Masterton.

Taupo-based firm Electrix was the main contractor for the project and spent five months installing the infrastructure.

Electrix project manager Brad Eyre says the work went smoothly and Wairarapa had just about everything they needed to get the project completed. He says the old transformers were getting 'past their use-by date' and the new ones should be good for more than 50 years.

Transpower, the owner and operator of the National Grid, is commissioning two new replacements at the Masterton substation to meet the growing power supply needs of the area.

Power supply in Masterton is now supplied by two transformer banks and 33kV outdoor switchgear. The transformer converts the 110kV Transpower grid supply to a lower voltage of 33kV, enabling Powerco to distribute electricity to homes and businesses throughout the Masterton and Wairarapa region.

The seven old transformers were made in Italy in 1963 and weighed 16 tonnes each and cost around $90,000. The two new transformers are 73 tonnes each, cost $1.5m and were made in Thailand.

The project involved removing the single-phase transformer bank units and installing the two new transformers. A purpose-built switch room houses the new switch gear.

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- Wairarapa News

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