Three-phase power meter wiring abnormal identification method
A three-phase power, abnormal identification technology, applied in the direction of electrical connection testing, instruments, measuring electricity, etc., can solve problems such as reverse sequence, abnormal wiring of related instruments, manual inspection, etc.
Active Publication Date: 2019-10-22
上海尤比酷电气有限公司
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Problems solved by technology
These related power meters need to be manually connected to a large number of secondary cables such as three-phase voltage, current, and communication. Once the on-site construction is not standardized and the inspection is not in place, it is easy to cause some power meters to have wiring problems such as wrong phase, reverse sequence, and poor contact.
These irregular wiring often lead to abnormal wiring of related instruments, which in turn affects the normal operation and analysis of the remote monitoring system
At present, there is no effective detection method for the abnormal identification of the wiring of the three-phase power meter in the power supply branch, and it can only rely on manual inspection
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[0036] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention. All similar structures and similar changes of the present invention should be included in the scope of protection of the present invention. The commas in all represent the relationship between and, and the English letters in the present invention are case-sensitive.
[0037] Such as figure 1 As shown, a method for identifying abnormal wiring of a three-phase power meter provided by an embodiment of the present invention is characterized in that the specific steps are as follows:
[0038] 1) Make a disk analysis diagram, the method of making the disk analysis diagram is as follows:
[0039] Set an analysis coordinate system, the coordinate system is a two-dimensional Cartesian coordinate system, the horizontal axis of the coordinate system is the X axis, and the vertical...
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The invention relates to a three-phase power instrument wiring anomaly identification method, which relates to the technical field of a power system and aims to solve a technical problem of three-phase power instrument wiring anomaly identification. The method comprises the steps of firstly making a disk analysis diagram according to load characteristics of a power supply branch, and setting a plurality of identification partitions on the disk analysis diagram; then calculating coordinates of a target three-phase power instrument in an analysis coordinate system according to the electrical quantity of the power supply branch to which the target three-phase power instrument belongs; and then performing identification analysis on wiring conditions of the target three-phase power instrument according to the coordinates of the target three-phase power instrument in the analysis coordinate system. Three-phase power instruments with abnormal wiring in the power supply branch can be identified quickly and effectively according to the method provided by the invention.
Description
technical field [0001] The invention relates to power system technology, in particular to a technology for identifying abnormal wiring of a three-phase power meter. Background technique [0002] In the power energy efficiency monitoring system or the traditional power SCADA system, it is necessary to install a large number of three-phase power meters in the substation and power distribution room, and the current, power, power factor and electric energy of the circuit under test will be recorded by the data concentration unit or the communication management unit. The sampling data is transmitted to the remote monitoring system through various communication media. These related power meters need to be manually connected to a large number of secondary cables such as three-phase voltage, current, and communication. Once the on-site construction is not standardized and the inspection is not in place, it is easy to cause some power meters to have wiring problems such as wrong phas...
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IPC IPC(8): G01R31/04
CPCG01R31/67
Inventor 胡大良王曼
Owner 上海尤比酷电气有限公司