Blog
Use of Current Transformers in Solar Energy Systems
The current transformer is the backbone of measurement. However, no measuring device works flawlessly for a lifetime. Over time, it may lose its accuracy and create deviations in the system. That is why calibration plays a vital role in energy systems.
Importance of Calibration
It is essential for energy meters to provide accurate measurements.
It is a legal requirement in agreements with electricity distribution companies.
It must be documented within the scope of energy management systems such as ISO 50001.
It prevents the incorrect triggering of protection relays.
Calibration Process
Ensures accurate measurement of energy meters.
It is a legal obligation in agreements with electricity distribution companies.
It must be documented under energy management systems such as ISO 50001.
Prevents misoperation of protection relays.
How Often Should It Be Done?
- Industrial facilities: Every 1–2 years.
- CTs used with energy meters: At each verification period.
- Critical facilities (hospitals, data centers): Annual regular inspections are recommended.
Calibration is the “hidden guarantor” in energy systems. No matter how high-quality the device you use, if regular calibration is not performed, your measurements will not be reliable. This can have both commercial and legal consequences. Having your manufacturer provide calibration services offers you a significant advantage.