{"id":1329,"date":"2024-06-04T02:35:13","date_gmt":"2024-06-03T19:35:13","guid":{"rendered":"http:\/\/www.tneutron.net\/elektro\/?p=1329"},"modified":"2024-05-31T07:51:05","modified_gmt":"2024-05-31T00:51:05","slug":"single-phase-power-measurement","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/elektro\/single-phase-power-measurement\/","title":{"rendered":"Single Phase Power Measurement"},"content":{"rendered":"

Measurement of power on the system backflow Janis power can be divided into three, namely<\/span>
\n – Apparent power (S) measured in VA or kVA<\/span>
\n – Active Power (P) which is measured in watts or kW<\/span>
\n – Reactive Power (Q) measured in VAR or kVAR<\/span><\/p>\n

The relationship between the three power can be explained easily by the power triangle, as follows:<\/span>
\n\"image\"<\/a>
\n Figure 7.1 Diagram Power Triangle<\/span><\/p>\n

In accordance with the Law of Pythagoras, the third link of the power can be determined mathematically as follows:<\/span>
\n Cos \u03b1 = Power On \/ Power Semu<\/span>
\n Sin \u03b1 = Reactive Power \/ Power Semu<\/span><\/p>\n

From the above two equations we can turn into:<\/span>
\n Active Power = Power apparent x Cos \u03b1<\/span>
\n Pseudo Power = Power On \/ Cos \u03b1<\/span>
\n Reactive Power = Power x Sin \u03b1 Semu<\/span><\/p>\n

So, if the two parameters are known, the other parameters can be determined.<\/span> When the apparent power is known and large phase difference between the active power and apparent power is known, the value of active power can be determined.<\/span> For example, note the apparent power S = 50 kVA, and the angle of the phase difference of 60 degree arc, then the active power P = 50 kVA x cos 600 = 25 kW<\/span>
\n Another example, note the apparent power S = 50 kVA, and Active Power P = 25 kW, then the reactive power kVAr<\/span><\/p>\n

Measurement of apparent power (Q) can be easily done by measuring voltages and currents in an alternating current circuit as shown in Figure 7.2.<\/span>
\n\"image\"<\/a>
\n Figure 7.2 Series of Power Measurement Semu (S) Direct<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Measurement of power on the system backflow Janis power can be divided into three, namely – Apparent power (S) measured<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[2232],"tags":[1861,1869,1863,1862,1868,1865,1864,1867,1866,1870],"class_list":["post-1329","post","type-post","status-publish","format-standard","hentry","category-english","tag-single-phase-power","tag-single-phase-power-box","tag-single-phase-power-calculation","tag-single-phase-power-factor","tag-single-phase-power-factor-correction","tag-single-phase-power-line","tag-single-phase-power-meter","tag-single-phase-power-monitor","tag-single-phase-power-solutions","tag-single-phase-power-transformer"],"yoast_head":"\nSingle Phase Power Measurement - TN Elektro<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tneutron.net\/elektro\/single-phase-power-measurement\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Single Phase Power Measurement - 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