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Student & Learning Zone - City & Guilds
(C&G 203 ?) Motor & Other Questions..
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<blockquote data-quote="searley" data-source="post: 55320" data-attributes="member: 1403"><p>could any one show me how to get the formulas for these question asth ones on the post don`t work out.</p><p></p><p>11. A 400v 50Hz has a line current of 50A and 0.8 lagging, The power dissipated will be:</p><p></p><p>A 20KW</p><p></p><p>B 9.2KW</p><p></p><p>C 27.712KW</p><p></p><p>D 16KW</p><p></p><p>12. The reactance of a 1uf capacitor connected across a 50Hz supply is:</p><p></p><p>A 3.18 ?</p><p></p><p>B 31.8 ?</p><p></p><p>C 318 ?</p><p></p><p>D 3.18 ?</p><p></p><p>16. A 3 phase 4 pole motor 50Hz induction motor has a slip of 4% the actual speed of the motor is:</p><p></p><p>A 1500prm</p><p></p><p>B 1440rpm</p><p></p><p>C 1400rpm</p><p></p><p>D 1359rpm</p><p></p><p>thanks for the help</p></blockquote><p></p>
[QUOTE="searley, post: 55320, member: 1403"] could any one show me how to get the formulas for these question asth ones on the post don`t work out. 11. A 400v 50Hz has a line current of 50A and 0.8 lagging, The power dissipated will be: A 20KW B 9.2KW C 27.712KW D 16KW 12. The reactance of a 1uf capacitor connected across a 50Hz supply is: A 3.18 ? B 31.8 ? C 318 ? D 3.18 ? 16. A 3 phase 4 pole motor 50Hz induction motor has a slip of 4% the actual speed of the motor is: A 1500prm B 1440rpm C 1400rpm D 1359rpm thanks for the help [/QUOTE]
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(C&G 203 ?) Motor & Other Questions..
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