The minimum and maximum short circuit current are reviewed. How the installation tester operates and measures Ik,min and Ik,max. In addition, verification of the installation according to HD 60364-6, section 6. The course contains examples and virtual instruments.
Instrument guides
In the installation testing course series, which shows the general theory and background, Fluke and Megger instruments are used as virtual instruments. There are many installation testers available and TSE-Learning is continuously adding more virtual e-learning user guides under the topic “Instrument guide”.
Installation test courses
Directly related are the courses for the installation tester: RCD test, Insulation test and Continuity test. In several power grid topics, Ik_min is a good parameter to describe the stability of the power grid and power quality.
The importance of a good instrument
Measuring short-circuit current is the function where the difference between the individual installation tests is greatest. There are two parameters that can challenge the reliability of the measurement; High short circuit current and and power grid disturbance. For example, if you need to test an electrical outlet in a hospital, expect a lot of electronic equipment that generates harmonics, where a cheap tester can give large deviations in the measurements.
Short circuit current, measuring loop impedance
Example from the course
This displays the measurement of “Loop impedance” when the device is connected to the power outlet. Here, virtual instruments illustrate what the measurement principle for Phase Zero looks like.
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