Rogowski Sensor and Method for Measuring a Current
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Abstract
A Rogowski sensor is provided for measuring a current of an electrical conductor. The sensor has a Rogowski coil, which has an electrical winding resistor, and an integration device which is connected to the Rogowski coil and is intended to generate an output signal which is proportional to the electrical current to be measured by the Rogowski sensor. The integration device is formed by the winding resistor of the Rogowski coil and a capacitance which is connected to the two winding connections of the Rogowski coil, and for the output signal from the integration device to be formed by the voltage applied to the capacitance.
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Citations
24 Claims
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1-11. -11. (canceled)
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12. A Rogowski sensor for measuring a current of a conductor, the Rogowski sensor comprising:
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a Rogowski coil having an electrical winding resistance and two winding terminations; and an integration device connected to said Rogowski coil for generating an output signal that is proportional to the current to be measured by the Rogowski sensor, said integration device is formed by said electrical winding resistance of said Rogowski coil and a capacitance connected to said two winding terminations of said Rogowski coil, said integration device outputting an output signal formed by a voltage present across said capacitance. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for measuring a current of a conductor with an aid of a Rogowski coil having an electrical winding resistance, which comprises the step of:
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performing an integration for generating an output signal that is proportional to the current to be measured, the integration being carried out with the aid of the electrical winding resistance of the Rogowski coil and a capacitance connected to two winding terminations of the Rogowski coil; and outputting a voltage present across the capacitance as the output signal.
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Specification