Current transformer
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In electrical engineering, a current transformer (CT) is used for measurement of electric currents. Current transformers, together with voltage transformers (VT) (potential transformers (PT)), are known as instrument transformers. When current in a circuit is too high to directly apply to measuring instruments, a current transformer produces a reduced current accurately proportional to the current in the circuit, which can be conveniently connected to measuring and recording instruments. A current transformer also isolates the measuring instruments from what may be very high voltage in the monitored circuit. Current transformers are commonly used in metering and protective relays in the electrical power industry.
- Related: Rogowski coil, Transformer, Instrumentation, Transformer types
| High Frequency (Wideband) Current Transformers High Frequency (Wideband) Current Transformers www.ipec.co.uk/sensors.html - Web |
| Introduction to Current Transformers Introduction to Current Transformers www.elkor.net/pdfs/AN0305-Current_Transformers.pdf - Web |
| Introduction to Metering / Measurement Current Tra... Introduction to Metering / Measurement Current Transformers www.itl-uk.com/en/products/measurement-transformers/ - Web |
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| Introduction to Protection Current Transformers Introduction to Protection Current Transformers www.itl-uk.com/introduction-protection-transformers.html - Web |
| Transformer Terminology Transformer Terminology www.itl-uk.com/instrument-transformer-characteristics.html - Web |
