Electrical Power Measurements

The Electrical Power Measurements group maintains standards, provides calibration services, develops instrumentation and testing procedures, and investigates new technology in the area of electrical power measurements. Research focuses on meeting present and future requirements of the Canadian electrical power industry for precise measurements and the development of state-of-the-art instrumentation and measurement techniques including:

• special revenue meters for electric utilities
• calibration facilities for equipment such as instrument transformers, active/reactive power and energy meters under sinusoidal/nonsinusoidal waveform conditions, high voltage capacitors, high current resistors and shunts (ac and dc), and high voltage loss measurement systems for transformers and inductive reactors
• diagnostic techniques and instrumentation to assess the operating conditions of high voltage apparatus in service,

Metrologists also disseminate measurement science relating to national and international standards for electrical power measurements and diagnostic and maintenance techniques for high voltage apparatus to industry.

• Publications
• Calibration Services
• Facilities

Electricity Metering

This project involves the research and development of unique and more accurate measurement techniques and instrumentation to precisely measure electrical quantities of interest to the electrical power industry such as voltage, current, and active/reactive power and energy. [More]

Diagnostic Measurements Techniques and Instrumentation

The electroluminescence (EL) technique was employed to detect charge injection and the effect of space charge in dielectrics subjected to impulse voltage. It was shown that the EL emission probability increased with the amplitude and fall time of the applied impulse voltage but was independent of the impulse rise time. [More]

High Voltage and High Current Measurements

This project involves research and development of openable-core electronically-aided current transformers for in-situ calibration of large and medium size ac/dc current measuring systems, including those that use a new generation of current transformers i.e., optical current transformers. [More]

Current-Comparator-Based Load Loss Standard

This project involves research and development of a load loss standard for in-situ calibration and testing of industrial high voltage loss measuring systems. [More]

NRC Travelling Standard Program

The NRC Travelling Standard Program has been improved by the introduction of a new computer controlled measuring system, which is used as the transfer device for the on-site calibrations of multifunction electrical standards. [More]

Related Information

Institutes:

• NRC Institute for National Measurement Standards