Untrusting the grid

POWERGRID INTERNATIONAL | Clear objectives.  Proven methods.  Intentional maintainability. Verifiable outcomes. These engineering principles guided the creation of the modern electric system that provides the backbone of unprecedented Western productivity and prosperity.

In the 1930s, engineers took 159,000 X-ray images of the welds in Hoover Dam’s penstocks to ensure their soundness. By the 1940s engineers created magnetic bearing watt-hour meters that did not require re-calibration for 20 years or more. Later, in the 1970s, engineers created vacuum chambers to ensure the dehumidification of cellulose insulation, thereby reducing rates of transformer failure.

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