Method for measuring eccentric error of current of each core wire of three-core power cable through magnetic sensor
The invention relates to a method for measuring the eccentric error of a current of each core wire of a three-core power cable through a magnetic sensor, and belongs to the technical field of currentmeasurement method. The technical scheme of the invention is that the method comprises the steps: ena...
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| creator | JIA CHANGSHUAI LI SHISONG GAO LING ZHANG JIANJUN TIAN XINCHENG JIAO YANG DONG JIE CHEN XIN YUAN YANLING LIU LANLAN LI NAN ZHAO WEI LI YAN MENG JING GAN JINGFU LI KAITE |
| description | The invention relates to a method for measuring the eccentric error of a current of each core wire of a three-core power cable through a magnetic sensor, and belongs to the technical field of currentmeasurement method. The technical scheme of the invention is that the method comprises the steps: enabling three magnetic sensors to rotate 180 degrees in the peripheral direction of an installation surface, and measuring the magnetic induction intensities, generated by all core wire currents of the three-core power cable at three new positions, in the peripheral direction of the installation surface; determining the size of an eccentric error and the magnitude of each core wire current of the three-core power cable under the condition that the eccentric error is considered through solving a nonlinear equation set. The beneficial effects of the invention are that the method can achieve the estimation of the eccentric errors of the currents of all core wires of the three-core power cable through the magnetic sensor |
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The technical scheme of the invention is that the method comprises the steps: enabling three magnetic sensors to rotate 180 degrees in the peripheral direction of an installation surface, and measuring the magnetic induction intensities, generated by all core wire currents of the three-core power cable at three new positions, in the peripheral direction of the installation surface; determining the size of an eccentric error and the magnitude of each core wire current of the three-core power cable under the condition that the eccentric error is considered through solving a nonlinear equation set. 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| subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | Method for measuring eccentric error of current of each core wire of three-core power cable through magnetic sensor |
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