Voltage and current combined sensor and voltage and current detection system

Abstract

The application provides a voltage and current combined sensor and a voltage and current detection system. The voltage and current combined sensor comprises a fixed support, a movable support, a first lead fixing mechanism, a second lead fixing mechanism, a locking handle, a linkage mechanism, an electric field sensor probe and a magnetic field sensor probe. The electric field sensor probe comprises a PCB substrate, a first electrode group, a second electrode group, a first binding post and a second binding post; the first electrode group comprises a plurality of semiorbicular first electrodes successively in series connection, and the second electrode group comprises a plurality of semiorbicular first electrodes successively in series connection; the magnetic field sensor probe comprises a first iron core, a second iron core, a Rogowski coil, a third binding post and a fourth binding post. The voltage and current combined sensor reduces insulation design costs, does not need to be in direct electrical connection with a power transmission line to be detected, and improves safety.

Description

technical field [0001] The present application relates to the field of electric power, in particular to a voltage and current combined sensor and a voltage and current detection system. Background technique [0002] The voltage and current measurement of the transmission line is closely related to the safe, reliable and economical operation of the power system, and is an important link in the maintenance of the power system. An efficient and safe measurement method is an effective way to improve maintenance efficiency and grid power supply quality. [0003] At present, voltage and current measurements in transmission lines are mainly realized through transformers, while traditional transformers need to be directly electrically connected to transmission lines, which require high insulation performance of transformers, resulting in high insulation design costs, and transformers need to be connected with power transmission lines. The line is directly connected electrically, wh...

AI Technical Summary

Problems solved by technology

[0003] At present, voltage and current measurements in transmission lines are mainly realized through transformers, while traditional transformers need to be directly electrically connected to transmission lines, which require high insulation performance of transformers, resulting in high insulation design costs, and transformers need to be connected with power transmission lines. The line is directly connected electrically, which is poor in safety

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