Measuring Internal Electrical Resistance of DC Voltmeter.

Author: Radoje Jankovic Accessories:  1. Folding analog voltmeter to the hate DC voltage, range: 0 – 40 V.  2. Digital or analog universal instrument or ohmmeter.  3. Measuring wires. Remove the casing from a voltmeter as seen in the pictures. If you have no experience with precise instrument, do not open the instrument, More...

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By admin On Friday, July 5th, 2019
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Active power measurement using a DC wattmeter

Author: Radoje Jankovic Figures from Jankovic documentation The pictorial view of active power measurement is shown in left figure. For this purpose is used a standard analog wattmeter. The right upper More...

By admin On Friday, July 5th, 2019
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Main types of measuring insulation resistance in a electrical installations

Author and drawings: Radoje Jankovic Here are given very clear ways for measuring the insulation resistance in any kind of electrical installations. Megaohmmeter cicruit vith hand inductor above, More...