Cable analysis device and detection method based on ring network cabinet

An analysis device and detection method technology, applied in the field of power control, can solve the problems of no power cable health status prediction, no cable overall condition prediction, and cable joint temperature data cannot be effectively used, etc., to achieve accurate judgment and filter out the effect of interference

Active Publication Date: 2022-02-22
上海道博电气有限公司
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  • Abstract
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Problems solved by technology

[0002] At present, many ring network cabinets can monitor the temperature status of cables online, but the generated temperature data of cable joints cannot be effectively used. It is only a simple judgment on the temperature data, and an alarm will be generated when the temperature is higher than a certain temperature. There is no basis for these data. Predict the health status of power cables, such as analyzing the real-time and historical data of the cable temperature in each interval of the ring network cabinet; not predicting the overall situation of the cable, analyzing the insulation level of the cable joints, and analyzing the cable failure of the ring network cabinet early warning

Method used

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  • Cable analysis device and detection method based on ring network cabinet

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Embodiment 2

[0046] Such as figure 1 As shown, the present embodiment provides a method of detecting a cable analyzer based on a ring cabinet, and the specific arithmetic process of the comparator and the alignment module is as follows:

[0047] S1: Cable connector temperature T of the acquisition interval 1 to the interval unit 6 in the ring cabinet 1 , T 2 , T 3 , T 4 , T 5 , T 6 The ring cabinet temperature Tx is calculated every 15 minutes and stores once.

[0048] S2: Load current information I of acquisition interval 1 ~ interval 6 1 I 2 I 3 I 4 I 5 I 6 The data is calculated and stored every 15 minutes. Item i 6 = 0;

[0049] S3: Calculate the heat transfer amount Q of the cable 1 to the interval unit 5 1 Q 2 Q 3 Q 4 Q 5 The interval unit 6 does not participate in the calculation due to the current of 0.

[0050] S4: Calculate the temperature change rate of the space in the day of the spacer 1 to the interval unit 5 1 , C 2 , C 3 , C 4 , C 5 ;

[0051] S5: Set the relative temperature c...

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Abstract

The invention provides a cable analysis device based on a ring network cabinet. When the cables of multiple spacer units of the ring network cabinet are connected and in a normal working state, the device is characterized in that: the device includes at least one temperature sensor, a current transformer, a memory, Calculator, analysis module and background management system, the temperature sensor is set at the ring network cabinet and the cable joint through wireless or wired transmission, the memory is set in the cloud or locally, and the calculator is used to calculate and analyze the temperature sensor report data information, the background management system is used for monitoring and reporting of abnormal events. The beneficial effect of the invention is to analyze the real-time and historical data of the temperature change information of the cables in each interval of the ring network cabinet, analyze the insulation level of the cable joints, and provide early warning for the hidden dangers of the cables in the ring network cabinet.

Description

Technical field [0001] The present invention relates to the field of power control technology, and in particular, it is a cable analysis device based on a ring cabinet and a detection method thereof. Background technique [0002] There are already many ring network cabinets to monitor the temperature state of the cable online, but the generated cable connector temperature data cannot be utilized, only the temperature data is simple, and the alarm is generated after a certain temperature, and there is no according to these data. The prediction of the health state of the power cable, such as the real-time and historical data of the cable temperature of each interval of the ring network cabinet; there is no pre-judgment of the overall situation of the cable, analyzing the insulation level of the cable connector, and fault to the ring cabinet cable Early warning. Inventive content [0003] It is an object of the present invention to provide a method of analyzing the health status of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12G01K13/00G01K1/024G01K1/022
CPCG01R31/1272G01K13/00G01K1/024
Inventor 赵春雷史进宗罗海波顾磊姚舟华钱云贵薛飞闫伦安
Owner 上海道博电气有限公司
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