Teaching HPSC Lecturer (Technical) Mock Test 2024 Electrical Machines Transformer Regulation of a Transformer
A transformer has equivalent resistance referred to secondary R02 and reactance referred to secondary X02. The regulation will be minimum when the phase angle is _______.
1
\(\phi = {\tan ^{ - 1}}\left( {\sqrt {\frac{{{X_{02}}}}{{{R_{02}}}}} } \right)\)
2
\(\phi = {\tan ^{ - 1}}\left( {\sqrt {\frac{{{R_{02}}}}{{{X_{02}}}}} } \right)\)
3
\(\phi = {\tan ^{ - 1}}\left( {\frac{{{R_{02}}}}{{{X_{02}}}}} \right)\)
4
\(\phi = {\tan ^{ - 1}}\left( {\frac{{{X_{02}}}}{{{R_{02}}}}} \right)\)
5
\(\phi = {\cos ^{ - 1}}\left( {\frac{{{R_{02}}}}{{{X_{02}}}}} \right)\)
5
Question Not Attempted