Extech Instruments announces its MA640 600A True RMS AC/DC Clamp Meters + NCV that has a higher accuracy rating then standard RMS meters. To use a clamp meter, only one conductor is normally passed ...

This is the second part of a two-part series on the methodologies used to find the short circuit current duties of circuit breakers and fuses. The first part, Short Circuit Current Duties of Circuit ...

On infrequent occasions, I am asked to design a circuit to measure the RMS value of a current or voltage for some kind of power measurement. Since the work I do is hardly unique, I thought some of you ...

The MCTR Series current transducer output is derived from the RMS value of the input for accurately sensing current in single and three-phase applications. The MCTR is ideal in non-sinusoidal current ...

The ACA-20RM-ALM series digital, true-rms AC ammeters provide a user-settable over-current alarm and measure/display true-rms, non-sinusoidal AC currents. They are completely self-contained and ...

Understanding the causes, similarities, and differences between current and voltage distortion will help you pinpoint most power quality problems. When a writer or speaker mentions harmonic distortion ...