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<\/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<\/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 in VA or kVA – Active Power (P) which is measured in watts or kW – Reactive Power (Q) measured in VAR or kVAR The relationship between the three power can be explained easily by …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"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"],"_links":{"self":[{"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/posts\/1329","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/comments?post=1329"}],"version-history":[{"count":1,"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/posts\/1329\/revisions"}],"predecessor-version":[{"id":5173,"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/posts\/1329\/revisions\/5173"}],"wp:attachment":[{"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/media?parent=1329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/categories?post=1329"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tneutron.net\/elektro\/wp-json\/wp\/v2\/tags?post=1329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}