公开(公告)号：US09507006B2

公开(公告)日：2016-11-29

申请号：US14512736

申请日：2014-10-13

Applicant: ABB TECHNOLOGY AG

Inventor： Joris Pascal ,  Rolf Disselnkötter ,  Franz Zurfluh ,  Bernhard Deck

IPC: G01R35/00 ,  G01R15/18 ,  G01R19/00

CPC classification number: G01R35/005 ,  G01R15/181 ,  G01R19/0092

Abstract: An exemplary method for calibrating a current transducer of the Rogowski type including a Rogowski coil sensor and an electronic device is performed by determining and correcting the sensitivity of the current transducer of the Rogowski type through the measurement of the self-inductance LRCCT of the coil using the electronic device.

Abstract translation: 通过使用线圈的自感LRCCT的测量来确定和校正Rogowski型的电流传感器的灵敏度，来执行用于校准包括Rogowski线圈传感器和电子设备的Rogowski型电流传感器的示例性方法， 电子设备。

公开(公告)号：US20150028853A1

公开(公告)日：2015-01-29

申请号：US14512809

申请日：2014-10-13

Applicant: ABB TECHNOLOGY AG

Inventor： Joris PASCAL ,  Franz Zurfluh

IPC: G01R15/18 ,  G01R35/00 ,  G01R19/00

CPC classification number: G01R15/181 ,  G01R19/0092 ,  G01R35/005

Abstract: An arrangement for measuring a current with a Rogowski type current transducer and transducer electronics. The current transducer has a primary conductor winding for carrying the rated current to be measured, and a secondary conductor winding. The secondary conductor winding adapted to induce a voltage signal VS′ between a pair of second terminals. The current transducer having a third conductor winding adapted to receive a calibration current signal. The voltage signal VS′ contains a coil sensitivity S and is a superposition of a rated current voltage signal and an additional calibration signal. The transducer electronics being adapted to amplify both the current voltage signal and the calibration signal in the same amplifier and divide the amplified current voltage signal by that part of the amplified calibration signal that contains the coil sensitivity and the gain.

公开(公告)号：US09557350B2

公开(公告)日：2017-01-31

申请号：US14512809

申请日：2014-10-13

Applicant: ABB TECHNOLOGY AG

Inventor： Joris Pascal ,  Franz Zurfluh

IPC: G01R15/18 ,  G01R19/00 ,  G01R35/00

CPC classification number: G01R15/181 ,  G01R19/0092 ,  G01R35/005

Abstract: An arrangement for measuring a current with a Rogowski type current transducer and transducer electronics. The current transducer has a primary conductor winding for carrying the rated current to be measured, and a secondary conductor winding. The secondary conductor winding adapted to induce a voltage signal VS′ between a pair of second terminals. The current transducer having a third conductor winding adapted to receive a calibration current signal. The voltage signal VS′ contains a coil sensitivity S and is a superposition of a rated current voltage signal and an additional calibration signal. The transducer electronics being adapted to amplify both the current voltage signal and the calibration signal in the same amplifier and divide the amplified current voltage signal by that part of the amplified calibration signal that contains the coil sensitivity and the gain.

Abstract translation: 用Rogowski型电流传感器和换能器电子装置测量电流的装置。 电流传感器具有用于承载待测量的额定电流的初级导体绕组和次级导体绕组。 次级导体绕组适于在一对第二端子之间感应电压信号VS'。 电流传感器具有适于接收校准电流信号的第三导体绕组。 电压信号VS'包含线圈灵敏度S，并且是额定电流电压信号和附加校准信号的叠加。 换能器电子器件适于放大同一放大器中的当前电压信号和校准信号，并将放大的电流电压信号除以包含线圈灵敏度和增益的放大校准信号的那部分。