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2. Grid-tie inverter - Wikipedia

   en.wikipedia.org/wiki/Grid-tie_inverter

   Grid-tie inverters are designed to disconnect quickly from the grid if the utility grid goes down. In the United States, there is an NEC requirement [2] that in the event of a blackout, the grid tie inverter shut down to prevent the electricity it generates from harming persons repairing the power grid.

3. National Grid (New Zealand) - Wikipedia

   en.wikipedia.org/wiki/National_Grid_(New_Zealand)

   In 1997, Transpower adopted a strategy known internally as “the glide path”, and minimised spending on the grid and renewing assets. The rationale for this strategy was based on the expectation that there would be widespread installation of distributed generation (electricity generated close to where it is used), and that this would significantly reduce the need to expand and renew the grid.

4. Power inverter - Wikipedia

   en.wikipedia.org/wiki/Power_inverter

   A power inverter, inverter, or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). [1] The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. [2]

5. Split-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Split-phase_electric_power

   Pole-mounted single-phase transformer with three-wire center-tapped "split-phase" secondary. On the three secondary terminals, the center tap is grounded with a short strap to the transformer case. A split-phase or single-phase three-wire system is a type of single-phase electric power distribution.

6. Isolation transformer - Wikipedia

   en.wikipedia.org/wiki/Isolation_transformer

   In electronics testing and servicing, an isolation transformer is a 1:1 (under load) power transformer used for safety. Without it, exposed live metal in a device under test is at a hazardous voltage relative to grounded objects such as a heating radiator or oscilloscope ground lead (a particular hazard with some old vacuum-tube equipment with ...

7. 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 ...