All day efficiency of transformers is significant especially for those transformers whose primaries are never open circuited, but the secondaries carry little or no load for most time during the day. While designing those transformers, Electrical Design Engineers are focused to reduce iron losses (since they occur continuously through whole day).
What is all day efficiency of transformers
The ratio of output in kWh to input in kWh of an electrical transformer over a period of 24 hours is technically termed as all-day efficiency.
Mathematical formula for all day efficiency of transformer is:
ηall-day = kWh output in 24 hours/kWh output in 24 hours
Álso see Most Important Questions on Transformers:
- Why you hear Noise near Transformers
- What happens if you supply 50 Hz to a 60 Hz transformer
- What are some advantages of Oil over air as a cooling medium in Power Transformers
- Why you use Oil in Transformers
- Dot convention on Electrical Transformers
Further Reading/Handbooks on Transformers:
- The Ultimate Guide to Transformers
- The Transformer Polarity Handbook
- Electrical Transformers Handbook
- What does 3000:1 indicates on Current Transformer
- Current Transformer
- Rating Factor of Current Transformers
- Transformer’s Power and Current Capacity
- Instrument Transformer Connections Handbook PDF Download