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2. Mains electricity by country - Wikipedia

   en.wikipedia.org/wiki/Mains_electricity_by_country

   (For industrial machinery, see industrial and multiphase power plugs and sockets.) Some countries have more than one voltage available. For example, in North America, a unique split-phase system is used to supply to most premises that works by center tapping a 240 volt transformer. This system is able to concurrently provide 240 volts and 120 ...

3. Powershop - Wikipedia

   en.wikipedia.org/wiki/Powershop

   In Consumers' Institute of New Zealand's 2009 survey of consumer satisfaction with electricity companies, 92% of Powershop's 111 responding customers found it 'good' or 'very good', and it received zero 'poor' ratings. [15] In 2010, it again received a 92% satisfaction rating. In 2011 and 2012, it garnered a 96% customer satisfaction rating. [16]

4. Power inverter - Wikipedia

   en.wikipedia.org/wiki/Power_inverter

   Utility frequency conversion - if a user in (say) a 50 Hz country needs a 60 Hz supply to power equipment that is frequency-specific, such as a small motor or some electronics, it is possible to convert the frequency by running an inverter with a 60 Hz output from a DC source such as a 12V power supply running from the 50 Hz mains.

5. AS/NZS 3112 - Wikipedia

   en.wikipedia.org/wiki/AS/NZS_3112

   AS/NZS 3112 is the harmonised/joint Australian and New Zealand Standard for AC power plugs (male) and sockets (female). The International Electrotechnical Commission (IEC) "world plugs" website defines this design as Plug Type I'. The plug consists of two flat pins forming an inverted V-shape, plus a vertical earthing pin below of a slightly ...

6. Transpower New Zealand - Wikipedia

   en.wikipedia.org/wiki/Transpower_New_Zealand

   Transpower New Zealand Limited Company type State-owned enterprise Industry Electricity transmission Founded 1994 ; 31 years ago (1994) Headquarters Wellington, New Zealand Key people Dr Keith Turner, Chairman Alison Andrew, Chief Executive Revenue NZ$ 1,061.1 million Total assets NZ$5,597.5 million employed Total equity NZ$1,481.3 million Website www.transpower.co.nz Transpower New Zealand ...

7. Split-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Split-phase_electric_power

   In a so-called balanced power system, sometimes called "technical power", an isolation transformer with a center tap is used to create a separate supply with conductors at balanced voltages with respect to ground. The purpose of a balanced power system is to minimize the noise coupled into sensitive equipment from the power supply.