On-line monitoring system of substation low-oil equipment

A technology for monitoring systems and substations, applied to measuring devices, instruments, etc., can solve problems such as changes in operating parameters and less dissolved hydrogen monitoring technology, and achieve the effect of comprehensive parameters, convenient assembly process, and reliable assembly

Inactive Publication Date: 2018-05-18
STATE GRID XINJIANG ELECTRIC POWER CORP +2
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  • Abstract
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Problems solved by technology

[0003] After our analysis, the important parameters of the state operation of the current oil-less equipment include oil temperature, oil pressure and dissolved hydrogen; generally, there are too few monitoring technologies for dissolved hydrogen, so the theoretical idea is to find a way to collect oil temperature and oil pressure , the change of oil temperature and oil pressure will bring about the change of the final operating parameters, which can immediately detect potential safety hazards

Method used

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  • On-line monitoring system of substation low-oil equipment
  • On-line monitoring system of substation low-oil equipment
  • On-line monitoring system of substation low-oil equipment

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specific Embodiment approach

[0048] Such as Figure 1-14 As shown, it shows the specific implementation of the present invention, as shown in the figure, the online monitoring system of the substation oil-reducing equipment disclosed by the present invention, the oil-reducing equipment includes an oil discharge port, and includes an oil discharge port installed on the oil discharge port A tee 4; an inlet of the tee is connected with the oil discharge port (through the flange), and a monitoring sensor 3 and a down sampling pipe 5 are respectively installed on two outlets of the tee; the down sampling pipe is downward Extend, and install a sampling valve 6 at the end of the down-leading sampling pipe; a switching valve 10 for switching the inlet and the two outlets is installed on the tee;

[0049] The monitoring sensor comprises a shell 101 of cylindrical structure, a bottom cover 112 is installed on the bottom of the shell, a top cover 113 is installed on the top of the shell, and the center of the bottom...

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Abstract

The invention discloses an on-line monitoring system of substation low-oil equipment. The on-line monitoring system can monitor the oil hydraulic force, the temperature and the hydrogen content of theoil-less equipment such as a voltage transformer, a low-oil circuit breaker and a (insulation) sleeve in real time, to timely discover defects, and the monitoring effect is reliable and comprehensive. The structure of the original equipment body does not need to be damaged, and a very convenient oil sample collection structure is also provided. The device comprises a tee joint installed on an oildischarge port; and one inlet of the tee joint is connected with the oil discharge port, and the two outlets of the tee joint are respectively provided with a monitoring sensor and a leading-down sampling tube. A threaded mounting head used for being assembled on one outlet of the tee joint is arranged in the center of the bottom cover of the monitoring sensor. A pressure transmitter mounting block fixedly arranged on the bottom cover and a hydrogen sensor fixing on the pressure transmitter mounting block are arranged in sequence from bottom to top in a shell. A pressure transmitter is arranged on the pressure transmitter mounting block.

Description

technical field [0001] The invention relates to a monitoring technology for oil-less equipment in a substation, and is specifically used for monitoring the oil state of the oil-less equipment in a substation. Background technique [0002] Substation oil-less equipment such as transformers and reactors is one of the main equipment in the power system and plays a pivotal role in the power system. With the popularization of oil-less equipment technology, voltage transformers, oil-less circuit breakers, (insulation) bushings and other oil-less equipment are one of the important accessories of transformers and reactors, and their reliability directly affects the safe operation of transformers and reactors. In 2017, three abnormal incidents of 750 kV high-voltage bushing failures occurred in Xinjiang Power Grid. Due to timely discovery, no major power grid accidents were caused, otherwise the consequences would be disastrous. Therefore, it is imminent to carry out online monitori...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 王川杨成刚卢秋锦杨川林克祥李飞岳万泉茌旭张颖高立刚李杰李梅刘博胡新刚马航朱辉朝凤阳李长福王礼波王学鹏
Owner STATE GRID XINJIANG ELECTRIC POWER CORP
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