Calibration of electricity meters

An electricity meter or a watthour meter measures the electrical energy passing through the meter and may be single-phase or poly-phase. The calibration assures that the measurement errors can be kept within the desired limits. By the regular calibration at RISE the stability of the meter can be monitored closely.

The normal calibration method is to generate the desired power levels, and to compare the measured energy of the unit under test with the power measured by a reference system, usually by comparing the frequency of pulse outputs. For this purpose RISE has reference systems with uncertainty level down to below 0.01 %.

The application may be one-phase or poly-phase and for low or high power factors. The frequency is normally 50 Hz but may be varied from 16.7 Hz to 400 Hz

Test and certification of electrical energy meters

RISE tests and certifies watt-hour meters according to national regulations and Swedish, European and international standards. The testing as well as the certification is accredited by SWEDAC, the official accreditation body in Sweden. Read more...

Life-time control of electrical energy meters

On commission by the Swedish utilities organisation Swedenergy, RISE manages a national control system for electricity meters called ELSA (Electricity meters Lifetime – Statistical Analysis) Read more...

Related Information

Contact Persons

Glenn Bideberg

Phone: +46 10 516 55 33

Kristofer Holmberg

Phone: +46 10 516 53 79

RISE Research Institutes of Sweden, Phone 010-516 50 00, E-mail

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