Electrical Machines
Which is the arrangement of windings in a core type single phase transformer?

 Half lv inside and half hv outside on each core limb
 Half hv inside and half lv outside on each core limb
 Lv on one core limb and hv on the other
 Sandwiched lv and hv discs on each core limb

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Electrical Machines
In a transformer

 both Oc and SC tests are conducted on HV side
 both OC and SC tests are conducted on LV side
 OC test is conducted on LV side and SC test is conducted on HV side
 OC test is conducted on HV side and SC test is conducted on LV side

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Electrical Machines
A 3-φ alternator has negligible stator resistance. A short circuit test is conducted on this alternator. At a particular speed, a field current of If1 is required to drive the rated armature current. If the speed of the alternator is reduced to half, the field current required to maintain rated armature current

 Would be equal to If1.
 Woud be equal to 2If1.
  Cannot be predicted due to insufficient data.
 Would be equal to If1/2.

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