Ring main unit operation detection device

Abstract

The invention relates to a ring main unit operation detection device which comprises a signal detection input circuit, a signal operation processing circuit and an output filtering driving circuit. According to the ring main unit operation detection device, a modular design scheme is adopted, an intelligent ring main unit is built in a wood stacking mode, and the problems that when a ring main unit is customized on site, the design period is long, the cost is high, and the later expansion inclusiveness is low can be solved. The signal detection input circuit can receive the alternating current state of the ring main unit in a running state in real time, and meanwhile, a transient diode is used for front-end circuit protection, so high-integrity signal detection and primary circuit protection can be realized. The signal operation processing circuit can be divided into two parts to facilitate signal judgment, and the accuracy can be improved. And the output filtering drive circuit needs to filter noise and clutter superposed in the circuit processing process during output, so that the high accuracy of the output signal can be improved, and meanwhile, stable and reliable real-time monitoring of the ring main unit can be realized.

Description

Technical field [0001] The present application relates to the field of power detection and ring cabinets, and specific relates to a ring cabinet operation detection device. Background technique [0002] In the city and rural power supply points, the integrated ring network cabinet integrating secondary equipment is widely used in all-scale distribution networks. Although the ring cabinet has small area, installation is fast and maintained. Convenient, high and reliability, but in different applications, the number of lines required for the ring network cabinet node are different. Traditional ring cabinet design is customized according to the number of field lines, with a large cycle, high cost, and lack of expansion, etc. Inventive content [0003] (1) Technical issue [0004] 1. The design of the ring network cabinet is strong, and the cable planning is weak. [0005] 2. The design circuit of the ring cabinet is weak, and the structure is complicated. [0006] 3. The ring netwo...

AI Technical Summary

Problems solved by technology

The traditional ring network cabinet design is customized according to the number of on-site lines, which has fundamental defects such as long cycle, high cost, and difficult expansion in the later stage.

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