Current and voltage transformers measuring combined electronic TECV are designed for large-scale conversion of electrical signals of force and voltage of alternating and direct current into signals of measuring information and transfer of conversion results to measuring devices for metering of electric energy, measurement of electric energy quality indicators, protection, automation, signalling and control.
Principle of operation of TECV transformers: AC and DC current measurement is based on the application of the laws of total current and electromagnetic induction, galvanomagnetic effects. Current measurement is carried out by a combination of primary current converters depending on the version: low-power current transformer, Rogowski belt, magnetoresistive sensor.
. AC voltage measurement is carried out by a primary voltage converter realised on the basis of a voltage divider. The electronic module/unit performs analogue or analogue-to-digital...
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