Ring main unit plug temperature measuring system

Abstract

The invention provides a ring main unit plug temperature measuring system, which comprises a ring main unit. The ring main unit is internally provided with at least one group of three-phase wires; each phase wire is connected to a T-type connector; a plug is inserted at the detection end of the T-type connector; the plug is internally provided with a temperature sensor; at least one concentrator is embedded inside the ring main unit; multiple temperature sensors are connected to the same concentrator; and the concentrator is connected to a background system through a wireless network. Each concentrator concentrates temperature detection results of the multiple temperature sensors and then sends the results to the background system, the background staff can observe the detection results conveniently, and the work intensity of the staff is reduced.

Description

technical field [0001] The invention belongs to the technical field of ring network cabinets, in particular to a temperature measuring system for plugs of ring network cabinets. Background technique [0002] The ring network cabinet is a set of high-voltage switchgear installed in a steel plate metal cabinet or made into an assembled interval ring network power supply unit. The ring network cabinet plays a vital role in the power supply system, but during the long-term operation of the ring network cabinet, the power cables are prone to heating due to aging or excessive contact resistance, especially for cable connections. The heating phenomenon will be more obvious, and the temperature detection and alarm of these heating parts can avoid the occurrence of fire accidents, reduce economic losses and social impacts such as large-scale power outages. [0003] At present, the conventional temperature measurement method of the power system for the ring main unit is to rely on ma...

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Problems solved by technology

[0003] At present, the conventional temperature measurement method of the power system for the ring network cabinet is to rely on manpower and infrared thermometers for regular inspections. This method not only consumes a lot of manpower, but also cannot detect the temperature changes at the temperature measurement points in real time.

And in the prior art, when performing temperature testing, the staff usually aim at a place, or install a temperature sensor at a certain position to measure the temperature of the corresponding position. The former has a large labor cost and is very inconvenient, while the latter The temperature detected by the randomly installed temperature sensor is easily affected by external connections or other nearby equipment, and the randomly installed sensor leads to messy wiring, which is not convenient for later maintenance and repair

[0004] Moreover, the former of the aforementioned methods requires the user to manually send the test results to the background system such as the data center. When the staff forgets to send the test data, the background cannot obtain the test data, and usually requires the staff to perform the test again to reduce labor efficiency; the latter will The temperature sensor is connected to a display, and the staff need to go to the scene to observe the temperature, or send the temperature sensor to the background system through a wireless module. However, in a ring network cabinet, it is usually necessary to measure the temperature at multiple points. For example, for a group of three-phase lines, it is necessary to measure the temperature of the three-phase lines separately, so there are three temperature measurement points. In the prior art, multiple temperature sensors in a ring main unit send the detection results to the background system respectively. The workload of the background system increases, reducing the efficiency of the background staff

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