A system for intelligent and accurate measurement of in-situ cut-off protection for ring network cabinets and its implementation method

A ring network cabinet, precise technology, applied in the direction of emergency protection circuit devices, information technology support systems, electrical components, etc., can solve problems such as unrealizable faults, long time required to isolate faults, system impact, etc., to improve power supply stability , smooth, reliable and safe transmission, and the effect of ensuring safe and reliable operation

CN108347042BActive Publication Date: 2020-04-10安徽广祺智能电器股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-04-10

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Abstract

The invention discloses a system for intelligently and accurately measuring on-site cutting protection of a ring network cabinet. The ring network cabinet includes a primary room and a secondary room; Transformer; the current transformer and voltage transformer send the collected monitoring data to the controller in the secondary room, the primary room monitoring sensor of the ring network cabinet is connected to the secondary room through a data line, and the primary room is equipped with a circuit breaker . The advantages of the present invention are: the current transformer and the voltage transformer send the collected monitoring data to the controller in the secondary room, and the data processing module of the controller performs calculation and analysis on the collected data, realizing faults of different natures, targeted treatment.
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Description

technical field

[0001] The invention relates to the technical field of electrical equipment, and more specifically, relates to a system for intelligently and accurately measuring in-situ cutting protection of a ring network cabinet and an implementation method thereof. Background technique

[0002] Ring Main Unit (Ring Main Unit) is a group of transmission and distribution electrical equipment (high-voltage switchgear) installed in a metal or non-metallic insulated cabinet or made into an assembled interval ring network power supply unit. Its core part adopts load switches and The fuse has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations of load centers such as urban residential quarters, high-rise buildings, large public buildings, factories and enterprises.

[0003] At present, the feeder automation system scheme for the ...

Examples

Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Such as figure 1 - As shown in Figure 4, a system for intelligent and accurate measurement of in-situ cut-off protection for a ring network cabinet, the ring network cabinet includes a primary room and a secondary room; the distribution lines and switch lines in the primary room are respectively equipped with current transformers , voltage transformer; the current transformer and the voltage transformer send the collected monitoring data to the controller in the secondary room, the monitoring sensor in the primary room of the ring network cabinet is connected with the secondary room through a data line, and the primary room is equipped with Circuit breaker, the data processing module in the controller judges whether abnormal output occurs by comparing the value of each phase of the output line with the set standard value, and calibrates and stores the informatio...