$($a$)$ A $3$ phase, eight pole induction motor is rated as shown in Table $2.$ The power factor is $0\mathrm{.}85$ leading. The motor is operated at full load condition and the efficiency is $\backslash (89\mathrm{.}0\backslash \%\backslash ).[$Motor aruhan $3$ fasa, lapan kutub berkadaran seperti ditunjukkan dalam Jadual $2.$ Faktor kuasa adalah $0\mathrm{.}85$ mendahului. Motor ini beroperasi pada keadaan beban penuh dan kecekapan motor ialah $\backslash (89\mathrm{.}0\backslash \%\backslash ).]$

Table $2$

$($i$)$ Calculate the speed in rpm$.$

$[$Kirakan kelajuan dalam ppm$.]$

$($ii$)$ Determine the input power and output torque.

$[$Tentukan kuasa masukan dan dayakilas keluaran.$]$

$($iii$)$ Determine the armature current, $\backslash (\backslash$mathrm$\{$I$\}\_\{\backslash$mathrm$\{$A$\}\}\backslash )$ and armature voltage, $\backslash (\backslash$mathrm$\{$E$\}\_\{\backslash$mathrm$\{$A$\}\}\backslash ).$

$[$Tentukan arus angker, $\backslash ($ I$\_\{$A$\}\backslash )$ dan voltan angker, $\backslash ($ E$\_\{$A $\backslash$cdot$\}\backslash )]$

$($iv$)$ Calculate the converted power, $\backslash (\backslash$mathrm$\{$P$\}\_\{\backslash$text $\{$conv $\}\}\backslash ).$

$[$Kirakan kuasa yang dihasilkan.$]$