CN105973315A - On-load switch insulating oil online detection device - Google Patents
On-load switch insulating oil online detection device Download PDFInfo
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- CN105973315A CN105973315A CN201610604832.3A CN201610604832A CN105973315A CN 105973315 A CN105973315 A CN 105973315A CN 201610604832 A CN201610604832 A CN 201610604832A CN 105973315 A CN105973315 A CN 105973315A
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- oil
- filter device
- detector unit
- oil filter
- loaded switch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses an on-load switch insulating oil online detection device, which comprises an oil filter device, a sampling unit, a micro moisture detection unit, a breakdown voltage detection unit and a PLC module. The oil filter device is used for extracting oil sample from an on-load switch, and sending the filtered oil sample to the on-load switch; an oil inlet of the sampling unit is connected with an oil outlet of the oil filter device; the sampling unit is used for sending the oil sample to the micro moisture detection unit; the oil sample detected by the micro moisture detection unit is detected by the breakdown voltage detection unit and is then, sent to the oil filter device; the oil filter device sends the filtered oil sample to the on-load switch; and the PLC module are in both-way communication with the oil filter device, the micro moisture detection unit and the breakdown voltage detection unit. The insulating oil in an on-load switch oil chamber is directly extracted by the oil filter device; the insulating oil is detected and filtered and then, is sent to the on-load switch oil chamber, thereby preventing reduction of oil level of the insulating oil due to detection; and since the insulating oil is sent to a test room without sampling, detection efficiency and detection precision are improved.
Description
Technical field
The present invention relates to loaded switch parameter detecting technical field, particularly relate to a kind of loaded switch insulating oil on-line measuring device.
Background technology
Load switch of transformer maintenance directive/guide requires: every 6 months to 1 year or tap changing 2000 times to 4000 times at least sampling carry out micro-water and breakdown voltage test 1 time, stop tap change operation when the insulating oil breakdown voltage in loaded switch grease chamber is less than 25kV and process in time, also should process in time when water content is more than 40 μ L/L.So most important to the quality-monitoring of loaded switch insulating oil, affect service life and the equipment safety of equipment.Existing the collection that only operating personnel scene carries out oil sample is detected for loaded switch insulating oil after return unit and utilize instrument to detect, so can waste substantial amounts of manpower and materials, work efficiency is low, and is difficult to control in time the situation of equipment.
Summary of the invention
The technical problem to be solved is to provide a kind of loaded switch insulating oil on-line measuring device, the insulating oil in loaded switch grease chamber is directly extracted by oil filter device, insulating oil is still sent in loaded switch grease chamber after detection filtration, avoid reducing the oil level of insulating oil because of detection, in loaded switch grease chamber, the insulating oil of extraction is sampled through sampling unit, the oil sample adopted carries out on-line checking through micro-water detector unit and breakdown voltage detector unit water micro-to insulating oil index and breakdown voltage, detect without sending to test chamber after sampling, improve detection efficiency and accuracy of detection, shorten the troubleshooting cycle.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of loaded switch insulating oil on-Line Monitor Device, including oil filter device, sampling unit, micro-water detector unit, breakdown voltage detector unit and PLC module, described oil filter device is for extracting oil sample from loaded switch, and send into loaded switch after filtering, described sampling unit oil-in connects oil filter device oil-out, described sampling unit for sending into micro-water detector unit by oil sample, oil sample through the detection of micro-water detector unit enters oil filter device after breakdown voltage detector unit, oil sample after oil filter device will filter sends into loaded switch, described PLC module filters device respectively at oil, micro-water detector unit and breakdown voltage detector unit two-way communication.
Also including the background work station with PLC module wired or wireless communication, background work station signal output part connects AVC pressure regulation block sytem and controls end.
Described oil filter device is online oil filter.
Use and have the beneficial effects that produced by technique scheme: directly extract the insulating oil in loaded switch grease chamber by oil filter device, insulating oil is still sent in loaded switch grease chamber after detection filtration, avoid reducing the oil level of insulating oil because of detection, in loaded switch grease chamber, the insulating oil of extraction is sampled through sampling unit, the oil sample adopted carries out on-line checking through micro-water detector unit and breakdown voltage detector unit water micro-to insulating oil index and breakdown voltage, detect without sending to test chamber after sampling, improve detection efficiency and accuracy of detection, shorten the troubleshooting cycle；Still further aspect, the detection data of micro-water detector unit and breakdown voltage detector unit are uploaded to background work station and are analyzed by the PLC module of the present invention, detection data are contrasted by background work station with historical data, when measured data is beyond established standards, then signaled to AVC pressure regulation block sytem by background work station, AVC pressure regulation can directly locking, stop tap change operation, it is to avoid the generation of loaded switch fault.
Accompanying drawing explanation
Fig. 1 is principle of the invention block diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention can also use other to be different from alternate manner described here to be implemented, those skilled in the art can do similar popularization in the case of intension of the present invention, and therefore the present invention is not limited by following public specific embodiment.
As shown in Figure 1, the invention discloses a kind of loaded switch insulating oil on-Line Monitor Device, including oil filter device, sampling unit, micro-water detector unit, breakdown voltage detector unit and PLC module, described oil filter device is for extracting oil sample from loaded switch, and send into loaded switch after filtering, described sampling unit oil-in connects oil filter device oil-out, described sampling unit for sending into micro-water detector unit by oil sample, oil sample through the detection of micro-water detector unit enters oil filter device after breakdown voltage detector unit, oil sample after oil filter device will filter sends into loaded switch, described PLC module filters device respectively at oil, micro-water detector unit and breakdown voltage detector unit two-way communication；Also including the background work station with PLC module wired or wireless communication, background work station signal output part connects AVC pressure regulation block sytem and controls end；Described oil filter device is online oil filter.
In concrete application process, the present invention installs sampling unit additional, first transformer oil in part loaded switch grease chamber taked by oil filter oil inlet pipe, insulating oil initially enters micro-water detector unit, moisture data are drawn by humidity sensor, enter back into breakdown voltage detector unit afterwards, insulating oil enters in the lubricating cup of test, power frequency ac voltage is applied by high-field electrode, it is gradually increased magnitude of voltage, until insulating oil is breakdown, thus record insulating oil dielectric strength, returned in loaded switch grease chamber by the oil return pipe of online oil filtration machine afterwards.It is transferred to above background monitoring work station by wirelessly or non-wirelessly communication system, work station automatically generates micro-water and breakdown voltage changing trend diagram according to historical data, and dock with AVC voltage-regulating system, report to the police when exceeding setting demand value, and carry out AVC pressure regulation locking, improve the safety and reliability of loaded switch.
This device can remotely carry out monitoring and the monitoring of loaded switch built-in electrical insulation oil, use can be analyzed for backstage personnel after being uploaded by remote data, the personnel that decrease enter the workload going to working site to gather data, reduce workload, improve work efficiency, and device interior insulation oil condition can be understood timely, it is possible to faulty loaded switch is judged rapidly, understand loaded switch running status in real time, there is the highest promotional value and practicality.
Claims (3)
1. a loaded switch insulating oil on-Line Monitor Device, it is characterized in that: include oil filter device, sampling unit, micro-water detector unit, breakdown voltage detector unit and PLC module, described oil filter device is for extracting oil sample from loaded switch, and send into loaded switch after filtering, described sampling unit oil-in connects oil filter device oil-out, described sampling unit for sending into micro-water detector unit by oil sample, oil sample through the detection of micro-water detector unit enters oil filter device after breakdown voltage detector unit, oil sample after oil filter device will filter sends into loaded switch, described PLC module filters device respectively at oil, micro-water detector unit and breakdown voltage detector unit two-way communication.
Loaded switch insulating oil on-line measuring device the most according to claim 1, it is characterised in that: also including the background work station with PLC module wired or wireless communication, background work station signal output part connects AVC pressure regulation block sytem and controls end.
Loaded switch insulating oil on-line measuring device the most according to claim 2, it is characterised in that: described oil filter device is online oil filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604832.3A CN105973315A (en) | 2016-07-28 | 2016-07-28 | On-load switch insulating oil online detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604832.3A CN105973315A (en) | 2016-07-28 | 2016-07-28 | On-load switch insulating oil online detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105973315A true CN105973315A (en) | 2016-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610604832.3A Pending CN105973315A (en) | 2016-07-28 | 2016-07-28 | On-load switch insulating oil online detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105973315A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514948A (en) * | 2019-08-02 | 2019-11-29 | 山东电力设备有限公司 | A kind of load switch of transformer on-Line Monitor Device |
| CN110596441A (en) * | 2019-09-19 | 2019-12-20 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | Voltage diagnostic instrument for movably detecting parameters of secondary power supply system of submerged arc furnace |
| CN111599585A (en) * | 2020-05-08 | 2020-08-28 | 国网宁夏电力有限公司检修公司 | Control method and system for tap switch of converter transformer |
Citations (6)
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| CN201417278Y (en) * | 2009-02-19 | 2010-03-03 | 上海川瑞电力设备制造有限公司 | On-line filtration and monitor device for on-load tapping switch |
| CN201921550U (en) * | 2011-01-04 | 2011-08-10 | 吉林省诺森机电设备有限公司 | Loaded tap-switch online oil purifier |
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2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514948A (en) * | 2019-08-02 | 2019-11-29 | 山东电力设备有限公司 | A kind of load switch of transformer on-Line Monitor Device |
| CN110596441A (en) * | 2019-09-19 | 2019-12-20 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | Voltage diagnostic instrument for movably detecting parameters of secondary power supply system of submerged arc furnace |
| CN111599585A (en) * | 2020-05-08 | 2020-08-28 | 国网宁夏电力有限公司检修公司 | Control method and system for tap switch of converter transformer |
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Application publication date: 20160928 |
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