CN207164188U - A kind of partial discharge of switchgear monitoring device for offshore drilling platformses - Google Patents
A kind of partial discharge of switchgear monitoring device for offshore drilling platformses Download PDFInfo
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- CN207164188U CN207164188U CN201720918588.8U CN201720918588U CN207164188U CN 207164188 U CN207164188 U CN 207164188U CN 201720918588 U CN201720918588 U CN 201720918588U CN 207164188 U CN207164188 U CN 207164188U
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Abstract
The utility model discloses a kind of partial discharge of switchgear monitoring device for offshore drilling platformses, including the ultrasonic sensor installed in middle-high voltage switch hyperbaric chamber, described ultrasonic sensor is used to gather the local discharge signal in switch cubicle, harvester is installed in described middle-high voltage switch low-pressure chamber, described harvester includes sampling module, wave filter, signal amplifier, analog-to-digital conversion module, data memory module and the data computation module being sequentially connected.Using the present apparatus when finding to alarm, field maintenance person carries portable ultraphonic Partial discharge detector to scene progress fault diagnosis, passes through frequency spectrum and the contrast of electric discharge spectrum analysis storehouse and the calculating of discharging field measurement, Precise Diagnosis switch cubicle failure.The system solve the problems, such as switch cubicle locally put a detection mode is single, lack prediction and tracing trouble method, improve switch cubicle reliability of operation and accuracy.
Description
Technical field
A kind of partial discharge of switchgear monitoring device is the utility model is related to, more particularly to one kind is used for offshore petroleum drilling
The on-Line Monitor Device of platform middle-high voltage switch shelf depreciation ultrasound.
Background technology
In the numerous systems for forming offshore oil and gas field, power system is carry as that can not use the sea of land supply of electric power
Oil gas field provide safety in production needed for electric energy and for oil gas field employee's normal life provide needed for electric energy important task, at sea oil
Played an important role in gas field production, life.It can stable operation, the yield target of direct relation offshore oil and gas field
Realization, while also indirect relation to the extra large realization of long-term green harmony of oil gas field.
Offshore platform mesohigh disk cabinet is offshore platform important component, with the development of offshore platform networking, middle height
The importance of platen cabinet gradually steps up, and how finding in time and eliminating electric hidden danger is then to ensure mesohigh disk cabinet stable operation weight
The means wanted.
Shelf depreciation is a kind of high-field effect in dielectric.Usual medium can cause electricity in the presence of shelf depreciation
The aging (voltage ageing) and breakdown of gas performance, it can not be ignored to having a strong impact on for insulation.Substantially there are following several respects
Harm：
(1) electric effect.Also both direct bombardment effects of charged particle (electronics, ion etc.), finally result in dielectric breakdown.
(2) hot effect, it is possible to cause the thermal melting or chemical breakdown of medium.In addition to the effect of heat, shelf depreciation
Caused light action (mainly in ultraviolet ray range), moreover it is possible to phenomena such as making plastics organic media generation light aging, be cracked.
(3) chemical action, not only there is strong corrosion failure effect to medium, and to metal material such as copper conductor, energy
The adverse consequences such as verdigris and nitric acid copper powders is formed on its surface.
Analysis more than, shelf depreciation make insulating materials aging, so must be prevented.If deposit for a long time
, meeting acceleration equipment aging, or even insulation breakdown can be caused, influence the normal operation of equipment, blast etc. occurs for more serious meeting,
Cause any property loss and casualties.
Shelf depreciation occurs under effect the reason for a variety of different in mesohigh disk cabinet, at the same can produce electric pulse, gas,
Phenomena such as ultrasonic wave, electromagnetic radiation, light, hot-spot and generation energy loss, according to the attendant phenomenon of shelf depreciation, generally adopt
A variety of detection methods such as electricity consumption pulse detection, gas chromatography, Electromagnetic Wave Detection method and light detection method.It is ripe to answer
Detection method is as shown in the table.
1 various detection method for local discharge of table contrast
The content of the invention
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided one kind can monitor offshore platform office in real time
Portion discharges, and can carry out fault alarm, the partial discharge of switchgear for offshore drilling platformses of Precise Diagnosis failure automatically
Monitoring device.
A kind of partial discharge of switchgear monitoring device for offshore drilling platformses of the present utility model, including installation
Ultrasonic sensor in middle-high voltage switch hyperbaric chamber, the part that described ultrasonic sensor is used to gather in switch cubicle are put
Electric signal, is provided with harvester in described middle-high voltage switch low-pressure chamber, and described harvester includes being sequentially connected
Sampling module, wave filter, signal amplifier, analog-to-digital conversion module, data memory module and data computation module, described adopts
The signal input part of egf block is connected with the signal output part of ultrasonic sensor, and described data memory module is used for modulus
The Partial Discharge Data of modular converter output is stored, and so as to data analysis and deposits the result after computing module calculates；
Described data computation module is used to be processed the original waveform data of the Partial Discharge Data of data memory module output
Calculate, draw various features conclusion value, the signal output part of described data computation module by wireless communication module with it is upper
Machine, which is connected, to carry out data transmission, and described data computation module is by the original waveform in various features conclusion value and is judged as possibility
Be electric discharge feature conclusion value export to host computer, described host computer be used for reading be probably electric discharge feature conclusion value
Analyzed, stored and alarmed.
Using the present apparatus when finding to alarm, field maintenance person carries portable ultraphonic Partial discharge detector to scene
Fault diagnosis is carried out, contrasts and calculates, Precise Diagnosis switch cubicle with electric discharge spectrum analysis storehouse by the frequency spectrum that discharges field measurement
Failure.The system solve the problems, such as switch cubicle locally put a detection mode is single, lack prediction and tracing trouble method, improve
Switch cubicle reliability of operation and accuracy.
Brief description of the drawings
Fig. 1 is a kind of system block diagram of the partial discharge of switchgear monitoring device for offshore drilling platformses.
Embodiment
With reference to embodiment and embodiment, the utility model is described in further detail.
A kind of partial discharge of switchgear for offshore drilling platformses of the present utility model monitors dress as shown in drawings
Put, including the ultrasonic sensor installed in middle-high voltage switch hyperbaric chamber, described ultrasonic sensor, which is used to gather, to be switched
Local discharge signal in cabinet, harvester, described harvester are installed in described middle-high voltage switch low-pressure chamber
Sampling module, wave filter, signal amplifier, analog-to-digital conversion module, data memory module and data including being sequentially connected calculate
Module, the signal input part of described sampling module are connected with the signal output part of ultrasonic sensor, described sampling module
Sample frequency can ensure really to be acquired discharge waveform, described data memory module is used for mould up to 1MB/s
The Partial Discharge Data of number modular converter output is stored, and so as to data analysis and deposits the knot after computing module calculates
Fruit；Described data computation module is used to add the original waveform data of the Partial Discharge Data of data memory module output
Work calculates, and show that (various features conclusion value can include discharge time per second to various features conclusion value, amplitude of discharging, between electric discharge
Every time and discharge phase etc.)；The signal output part of described data computation module passes through wireless communication module and host computer phase
Company carries out data transmission, and described data computation module is by the original waveform in various conclusion values and is judged as being probably electric discharge
Conclusion Value Data is exported to host computer as characteristic value, and described host computer is used for the analysis of partial discharge monitoring data, storage
And alarm.Analysis to shelf depreciation Monitoring Data can use the method that characteristic value is weighted to assessment.
0-4V analog signalses are converted into digital communication signal by described analog-to-digital conversion module.Described radio communication
Module can use 433MHz wireless communication modules, communication frequency 9600Bit/S, and the frequency range had both met wanting for traffic rate
Ask, there is good signal penetrability and the stability of data transmission again.
It is arranged in middle-high voltage switch hyperbaric chamber using the sonac of the utility model structure, is switched for gathering
Cabinet local discharge signal, amplified by signal and signal is changed into 0-4V analog signals from uV levels, sampled by analog-to-digital conversion module
It is changed into data signal, is sent into data computation module and tentatively judges, then determine whether signal stores.By tentatively judging, it is believed that can
Can be electric discharge, when waiting host computer taking turn, by data by being wirelessly transmitted to host computer., can be to switch cubicle in host computer
Shelf depreciation is monitored in real time, and carries out automatic alarm according to preset value, and when finding to alarm, field maintenance person carries just
Take formula ultrasound Partial discharge detector to scene and carry out fault diagnosis, pass through frequency spectrum and the electric discharge spectrum analysis of discharging field measurement
Storehouse contrasts and calculated, Precise Diagnosis switch cubicle failure.The system solves switch cubicle and locally puts that a detection mode is single, it is pre- to lack
The problem of surveying with tracing trouble method, improves switch cubicle reliability of operation and accuracy.
In the utility model device, the data of collection in worksite are wirelessly carried out by communications protocol with host computer
Data transfer, to reduce live rigid line connection cables.The partial discharge monitoring of host computer can combine live actual arrangement, by sensor
It is numbered, can in real time, quickly checks the sensor gathered data of each position, and carry out data storage, ensures data
Trackability, there is provided the original analysis data of accident analysis, when detecting shelf depreciation information, sound and light alarm letter can be sent
Number.
Claims (2)
- A kind of 1. partial discharge of switchgear monitoring device for offshore drilling platformses, it is characterised in that：Including installed in The ultrasonic sensor in middle-high voltage switch hyperbaric chamber, described ultrasonic sensor are used to gather the shelf depreciation in switch cubicle Signal, is provided with harvester in described middle-high voltage switch low-pressure chamber, and described harvester includes what is be sequentially connected High-speed sampling module, wave filter, signal amplifier, analog-to-digital conversion module, high-speed data processing module and data computation module, institute The signal input part of high-speed sampling module stated is connected with the signal output part of ultrasonic sensor, described high-speed data processing Module is used to store the Partial Discharge Data of collection, so as to data analysis and deposits the knot after computing module calculates Fruit；Described data computation module is used to be processed calculating to the original waveform data of the Partial Discharge Data of collection, draws Various features conclusion value, the signal output part of described data computation module are connected progress by wireless communication module with host computer Data transfer, described data computation module by the original waveform in various features conclusion value and be judged as be probably electric discharge spy Sign conclusion value export to host computer, described host computer be used for reading be probably electric discharge feature conclusion value analyzed, Storage and alarm.
- 2. the partial discharge of switchgear monitoring device according to claim 1 for offshore drilling platformses, its feature It is：Described wireless communication module uses 433MHz wireless communication modules, communication frequency 9600Bit/S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720918588.8U CN207164188U (en) | 2017-07-26 | 2017-07-26 | A kind of partial discharge of switchgear monitoring device for offshore drilling platformses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720918588.8U CN207164188U (en) | 2017-07-26 | 2017-07-26 | A kind of partial discharge of switchgear monitoring device for offshore drilling platformses |
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| CN207164188U true CN207164188U (en) | 2018-03-30 |
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| CN201720918588.8U Active CN207164188U (en) | 2017-07-26 | 2017-07-26 | A kind of partial discharge of switchgear monitoring device for offshore drilling platformses |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519546A (en) * | 2018-06-27 | 2018-09-11 | 广东电网有限责任公司 | A kind of method and system of detection high-tension apparatus shelf depreciation |
| CN108680843A (en) * | 2018-08-21 | 2018-10-19 | 广西电网有限责任公司电力科学研究院 | A kind of method for detection of partial discharge of switch cabinet based on Radio Transmission Technology |
-
2017
- 2017-07-26 CN CN201720918588.8U patent/CN207164188U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519546A (en) * | 2018-06-27 | 2018-09-11 | 广东电网有限责任公司 | A kind of method and system of detection high-tension apparatus shelf depreciation |
| CN108680843A (en) * | 2018-08-21 | 2018-10-19 | 广西电网有限责任公司电力科学研究院 | A kind of method for detection of partial discharge of switch cabinet based on Radio Transmission Technology |
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