Transient Behaviour of Conventional Current Transformers used as Primary Transducers and Input Elements in Protection IEDs and Stand Alone Merging Units
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چکیده
Different types of CTs have different transient behaviour. Conventional CTs do not have the ability to continuously reproduce a DC component. However, the different types of CTs have more or less capability of reproducing the DC component for a limited time. Especially CTs with big airgaps have poor ability of reproducing DC components. Mixing this type of CT with other types of CTs for a differential protection can be a potential risk of unwanted operations.
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