Q3. A 10-kVA distribution transformer has full-load efficiency at unity power factor of 95 %, the copper and iron losses then being equal. Calculate its all-day efficiency if it is loaded throughout the 24 hours as follows: No load for 6 hours Quarter load for 6 hours Halfload for 6 hours Full load for 6 hours Assume load power factor of unity.

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Q3. A 10-kVA distribution transformer has full-load efficiency at unity power factor of 95%, the copper and iron losses then being equal. Calculate its all-day efficiency if it is loaded throughout the 24 hours as follows: 1- No load for 6 hours 2- Quarter load for 6 hours 3- Half-load for 6 hours 4- Full load for 6 hours Assume load power factor of unity.
Q3. A 10-kVA distribution transformer has full-load efficiency at unity power factor of 95 %, the
copper and iron losses then being equal. Calculate its all-day efficiency if it is loaded throughout the
24 hours as follows:
No load for 6 hours
Quarter load for 6 hours
Halfload for 6 hours
Full load for 6 hours
Assume load power factor of unity.
Transcribed Image Text:Q3. A 10-kVA distribution transformer has full-load efficiency at unity power factor of 95 %, the copper and iron losses then being equal. Calculate its all-day efficiency if it is loaded throughout the 24 hours as follows: No load for 6 hours Quarter load for 6 hours Halfload for 6 hours Full load for 6 hours Assume load power factor of unity.
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