Line loss detection method of power supply circuit

Abstract

The invention relates to a line loss detection method of a power supply circuit. The method is on the basis of the line loss detection method of the power supply circuit. The circuit comprises a metering unit, wherein the metering unit is divided to a circuit metering unit, a power transformation metering unit and a load metering unit according to installation positions, a group of circuit metering unit is arranged, the circuit metering unit is arranged at an input end of a high-voltage power supply circuit, a plurality of output ends of the high-voltage power supply circuit pass through the power transformation metering unit and are then input to an input end of a transformer in a substation, an output end of the transformer is connected to a load by a plurality of inlet circuits, and theinlet circuits are connected in series with the load metering unit before being connected to the load. With the line loss detection method of the power supply circuit, rapid line loss detection and positioning can be achieved.

Description

technical field [0001] The invention relates to a detection method, in particular to a method for detecting and locating abnormal line loss of a power supply circuit, which belongs to the technical field of electric power. Background technique [0002] At present, it is necessary to monitor the line loss of the power cable during the power transmission process, so as to quickly and conveniently understand the line condition; however, the conventional line loss detection uses the power communication method for data communication, and when the line loss is abnormal, it often leads to communication blockage; Moreover, the design structure of the conventional detection circuit is complex, inconvenient to use, and requires an external battery to maintain the work of various detection components. For this reason, inspection personnel are required to replace the battery regularly, which increases maintenance costs. Contents of the invention [0003] The purpose of the present inv...

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Problems solved by technology

[0002] At present, it is necessary to monitor the line loss of the power cable during the power transmission process, so as to quickly and conveniently understand the line condition; however, the conventional line loss detection uses the power communication method for data communication, and when the line loss is abnormal, it often leads to communication blockage; Moreover, the design structure of the conventional detection circuit is complex, inconvenient to use, and requires external batteries to maintain the work of various detection components. For this reason, inspection personnel are required to replace batteries regularly, which increases maintenance costs.

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