CN206038828U - Monitoring devices is put in combined office - Google Patents
Monitoring devices is put in combined office Download PDFInfo
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- CN206038828U CN206038828U CN201620988357.XU CN201620988357U CN206038828U CN 206038828 U CN206038828 U CN 206038828U CN 201620988357 U CN201620988357 U CN 201620988357U CN 206038828 U CN206038828 U CN 206038828U
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Abstract
The utility model discloses a monitoring devices is put in combined office, monitoring devices is put in combined office joins in marriage current transformer (3) and external signal processing unit (2) including built -in signal detection coil (1), external height, and it is middle with cable armor (5) that built -in signal detection coil (1) is located rubber insulation layer (4), and built -in signal detection coil (1), external height are joined in marriage current transformer (3) and be connected with external signal processing unit (2) respectively, built -in signal detection coil (1) is used for judging high tension cable whether put by emergence office, the height is joined in marriage current transformer (3) and is used for detecting the volume of discharging, current transformer (3) signal is joined in marriage to transmission signal and external height that external signal processing unit (2) are used for receiving built -in signal detection coil (1), calculates the discharge charge volume and judges background noise, realizes accurate partial discharge detection. The utility model discloses a partial discharge detection technique that monitoring devices is put in combined office is traditional has relatively had new technological break -through, has solved built -in coil and has hardly measured the striking out high -volume, external current transformer interfering signal a great deal of difficulty how.
Description
Technical field
This utility model is related to High-Voltage Technology field, and in particular to monitoring device is put in a kind of comprehensive office.
Background technology
Blood vessels of the high tension cable as city, there is provided the energy needed for urban life.Once cable breaks down, to city
The impact that city's life is caused is inestimable.High-tension circuit major failure is embodied in high-voltage partial discharge.High tension cable partial discharge detection
Technology has been developed many years, and its partial discharge detection technology is also being constantly updated always.
Chinese utility model patent such as Publication No. CN203479963U discloses a kind of cable local discharge detection dress
Put, it include for obtain ultrasound wave ultrasound information supersonic reflectoscope and send out for sending the wireless of ultrasound information
Send unit, the also wireless receiving section including control unit and for receiving ultrasound information, the device is based on being discharged by cable
Ultrasound wave carry out cable local discharge detection.Traditional partial discharge detection means include ultrasound examination, ultrahigh-frequency current mutual inductance
Device detection etc., but have a common problem to be that environment noise is too strong, it is difficult to Partial discharge signal and ambient signal are separated.Cause
This domestic and international many company develops high tension cable office and puts inspection device, and its core technology is how to exclude high-frequency mutual inductor institute
The environment noise for detecting.
Utility model content
This utility model puts monitoring device there is provided a kind of comprehensive office, puts inspection with the high tension cable office for solving prior art
Survey the technical problem for existing.
In order to solve above-mentioned technical problem, this utility model puts monitoring device, the synthesis there is provided a kind of comprehensive office
Office put monitoring device and include signal detection coil, signal processing unit and high with current transformer, wherein：Signal detection coil
It is built in Integration Authority and puts monitoring device, signal detection coil is located in the middle of rubber insulation and cable armouring, signal detection coil
For judging high tension cable whether put by generation office；It is high to be coated at cable armouring ground connection whip with current transformer, it is high to match somebody with somebody Current Mutual Inductance
Device is connected with signal processing unit, high to be used for detecting discharge capacity with current transformer；Signal processing unit is placed on Integration Authority and puts
Monitoring device, signal processing unit are connected with signal detection coil, and signal processing unit is used for receiving the biography of signal detection coil
Defeated signal and external height match somebody with somebody current transducer signal, calculate discharge charge amount and simultaneously judge background noise, realize that inspection is put in accurate office
Survey.
Preferably, the signal detection coil is installed using horizontal.
In any of the above-described technical scheme preferably, the signal detection coil adopts longitudinal installation.
In any of the above-described technical scheme preferably, the signal detection coil is built-in with high frequency magnetic core.
In any of the above-described technical scheme preferably, the signal detection coil is ellipse, so as to longitudinal in high pressure
Inside cable.
In any of the above-described technical scheme preferably, the length of the signal detection coil is 5cm, is highly 1cm.
In any of the above-described technical scheme preferably, the inside of the signal processing unit has high speed A/D chip, institute
The picking rate for stating high speed A/D chip is the 60M/ seconds.
In any of the above-described technical scheme preferably, the inside of the signal processing unit also becomes with fast Flourier
Change processing unit.
In any of the above-described technical scheme preferably, the signal processing unit connects terminal, realizes high pressure
The on-line real-time measuremen of cable partial discharge, and the change played a game high-volume recorded and counted.
In any of the above-described technical scheme preferably, integral algorithm is used inside the signal processing unit, with center
The mode of frequency integrator calculates discharge charge amount.
In any of the above-described technical scheme preferably, the height adopts response frequency for 5-20MHz with current transformer
High-frequency mutual inductor.
In any of the above-described technical scheme preferably, the high employing with current transformer breathes out not (half) structure.
In any of the above-described technical scheme preferably, monitoring device is put for built-in signal detection line in the comprehensive office
Circle, external height match somebody with somebody current transformer and external signal processing unit, and built-in signal detection coil connects external signal processing unit,
The connection of external signal processing unit it is external it is high match somebody with somebody current transformer, built-in signal detection coil judges high tension cable whether generation office
External signal processing unit is put and transmits a signal to, external signal processing unit calculates discharge charge amount or judges background noise
To carry out partial discharge detection, external signal processing unit carries out Frequency Domain Integration to the external high signal with current transformer and is put with calculating
Electricity, by discharge capacity size, judgement is put in the office of being given.
In any of the above-described technical scheme preferably, the external height is provided with two with current transformer, and two outer
Put high current transformer of matching somebody with somebody to be located at outward high tension cable earth cable two ends to be measured respectively and connect external signal processing unit respectively.
Monitoring device is put based on the office of above-mentioned synthesis, then a kind of comprehensive office is provided and put monitoring method：Comprehensive office puts
Monitoring device is built-in signal detection coil, external height with current transformer and external signal processing unit, built-in signal detection
Coil, external height are connected with external signal processing unit respectively with current transformer；External signal processing unit is to external
HF current transformer carries out real-time AD signals collecting, carries out signal mode to the implanted signal detection coil inside cable armouring
Intend comparator triggering；As cable armouring is copper shell, signal detection coil is positioned over inside cable armouring i.e. maskable outside
Interference, for avoiding the signal detection coil being positioned over inside cable armouring from receiving and judge the limitation of Partial discharge signal, is coated at
The height of earth cable is used for flutterring the size caught Partial discharge signal and judge discharge capacity with current transformer；External signal processing list
Unit is simultaneously measured to built-in signal detection coil and the external high signal with transformer, when detecting built-in signal detection line
When circle occurs signal, center Frequency Domain Integration is carried out with current transformer to external height, accurate discharge charge amount is calculated, is worked as height
When not having signal with current transformer, it is judged as background noise, realizes accurate partial discharge detection.
The relatively conventional partial discharge detection of above-mentioned technical proposal of the present utility model has new technological break-through, solves built-in
Coil is difficult measurement striking out high-volume, many difficulties more than external current transformer interference signal.Compared with prior art, this practicality
New above-mentioned technical proposal has the advantages that：
(1) signal detection coil is built-in with, and height is equipped with outward with current transformer and be equipped with outward the synthesis of signal processing unit
Office put monitoring device, external signal processing unit carries out real-time AD signals collecting to external HF current transformer, right
Implanted signal detection coil inside cable armouring carries out signal imitation comparator triggering.Similarly, avoid being positioned over electricity
Signal detection coil inside cable armouring receives and judges the limitation of Partial discharge signal, as office electric discharge lotus finally must travel electricity
Cable armouring earth cable passage the earth, therefore be coated at the current transformer of earth cable and can be very good to flutter the office of grasping and put letter
Number, and judge the size of discharge capacity, and the weakness of overcoat current transformer is armouring earth cable faradic current always
Presence, therefore background noise is inevitable, and simple use HF current transformer is measured to armouring earth cable, only
Numerous background noises can be measured, and is difficult therefrom to obtain the Partial discharge signal wanted.Therefore this utility model is by both excellent
Point is combined together, and simultaneously the signal of built-in signal detection coil and HF current transformer is carried out using signal processing unit
Measurement.When built-in signal detection coil generation signal is detected, center Frequency Domain Integration is carried out to external current transformer, is calculated
Go out the discharge charge amount that standard goes out.When built-in current transformer does not have signal, it is judged as background noise, realizes accurate office and put
Detection.
(2) monitoring device is put in comprehensive office of the present utility model, and its external signal processing unit can further connect calculating
Machine terminal, it is possible to achieve the on-line real-time measuremen that high tension cable office puts, and the change played a game high-volume recorded and counted.Foundation
Prolonged on-line checking, can very easily measure high tension cable office and put variable condition.It is excessively bright that growth trend is put in authorities
It is aobvious, can accurately report to the police, remind cable life near, the protection cable operation of safety excludes electric cable explosion hidden danger.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is that monitoring is put in the office of the synthesis of the preferred embodiment for putting monitoring device according to comprehensive office of the present utility model
Apparatus structure overall schematic.
Reference：
1st, signal detection coil, 2, signal processing unit, 3, it is high match somebody with somebody current transformer, 4, rubber insulation, 5, cable armour
Dress.
Specific embodiment
With reference to the accompanying drawings and detailed description this utility model is elaborated, below describe only as demonstration and
Explain, do not make any pro forma restriction to this utility model.
In order to overcome high tension cable partial discharge detection the problems of in the prior art, this utility model embodiment is proposed
Monitoring device is put in a kind of comprehensive office：Monitoring device is put in comprehensive office includes that signal detection coil, signal processing unit and height are matched somebody with somebody
Current transformer；The signal detection coil is built in Integration Authority and puts monitoring device, and it is exhausted that the signal detection coil is located at rubber
In the middle of edge layer and cable armouring, the signal detection coil is used for judging high tension cable whether put by generation office；It is described high with electric current
Transformer is coated at cable armouring ground connection whip, and the height is connected with signal processing unit with current transformer, described high with electric current
Transformer is used for detecting discharge capacity；The signal processing unit is placed on Integration Authority and puts monitoring device, the signal processing unit
It is connected with signal detection coil, the signal processing unit is used for receiving the transmission signal of signal detection coil and external high distribution
Current transformer signal, calculates discharge charge amount and judges background noise, realize accurate partial discharge detection.
Monitoring device is put for built-in signal detection coil, external high with current transformer and external signal processing in comprehensive office
Unit, built-in signal detection coil, external height are connected with external signal processing unit respectively with current transformer；External signal
Processing unit carries out real-time AD signals collecting to external HF current transformer, and the implanted signal inside cable armouring is examined
Test coil carries out signal imitation comparator triggering；As cable armouring is copper shell, signal detection coil is positioned over cable armouring
Inside is maskable external disturbance, for avoiding the signal detection coil being positioned over inside cable armouring from receiving and judging Partial discharge signal
Limitation, being coated at the height of earth cable is used for flutterring catching Partial discharge signal and judging the big of discharge capacity with current transformer
It is little；External signal processing unit is measured to built-in signal detection coil and the external high signal with transformer simultaneously, works as inspection
When measuring built-in signal detection coil generation signal, center Frequency Domain Integration is carried out with current transformer to external height, standard is calculated
True discharge charge amount, when height does not have signal with current transformer, is judged as background noise, realizes accurate office and puts inspection
Survey.
As shown in figure 1, monitoring device is put in the comprehensive office includes signal detection coil 1, signal processing unit 2 and high distribution
Current transformer 3, signal detection coil 1 are located in the middle of rubber insulation 4 and cable armouring 5, signal processing unit 2 and signal detection
Coil 1 connects；Signal detection coil is used for judging high tension cable whether put by generation office；Signal processing unit is used for receiving signal inspection
The transmission signal of test coil, calculates discharge charge amount or judges background noise, realize accurate partial discharge detection；It is high to match somebody with somebody current transformer
For detecting discharge capacity.
Monitoring device is put in the comprehensive office：Its signal detection coil can keep flat and indulge to be put, and signal detection coil can be put down
High tension cable surface is placed in, it is also longitudinal in high tension cable surface；Signal detection coil is built-in with high frequency magnetic core；Signal detection coil
For ellipse, so as to longitudinal inside high tension cable；The length of signal detection coil is 5cm, is highly 1cm.
Monitoring device is put in the comprehensive office：The inside of its signal processing unit has high speed A/D chip, high speed A/D chip
Picking rate is the 60M/ seconds；The inside of signal processing unit also has fast fourier transform processing unit；Signal processing unit
Inside uses integral algorithm, in the way of mid frequency is integrated calculates discharge charge amount；There is inside signal processing unit electric discharge
Measuring loop, for measuring discharge voltage amplitude.
Monitoring device is put in the comprehensive office：Its height adopts high-frequency mutual inductor with current transformer, and response frequency is 5-
20MHz；High employing with current transformer breathes out not (half) structure.
The comprehensive office puts monitoring device and is configured to built-in signal detection coil, external height with current transformer and outer confidence
Number processing unit：Signal detection coil connects signal processing unit, and signal processing unit connection is high to match somebody with somebody current transformer, signal inspection
Test coil judges whether signal processing unit is put and transmitted a signal in generation office to high tension cable, and signal processing unit calculates electric discharge
The quantity of electric charge judges background noise to carry out partial discharge detection, and signal processing unit carries out frequency domain to the high signal with current transformer
To calculate discharge capacity, by discharge capacity size, judgement is put to integration in the office of being given.External height is provided with two with current transformer, two
It is high to be located at outward high tension cable earth cable two ends to be measured respectively with current transformer and connect external signal processing unit respectively.
Office with built-in signal detection coil, the external high synthesis for matching somebody with somebody current transformer and external signal processing unit puts
Monitoring device, its high tension cable partial discharge detection method include：Monitoring device is put for built-in signal detection coil, external in comprehensive office
High to match somebody with somebody current transformer and external signal processing unit, external signal processing unit is carried out to external HF current transformer
AD signals collecting, carries out signal imitation comparator triggering to the implanted signal detection coil inside cable armouring in real time；Due to
Cable armouring is copper shell, and signal detection coil is positioned over inside cable armouring i.e. maskable external disturbance；For avoiding being positioned over
Signal detection coil inside cable armouring receives and judges the limitation of Partial discharge signal, and the height for being coated at earth cable matches somebody with somebody electric current
Transformer is used for flutterring the size caught Partial discharge signal and judge discharge capacity；External signal processing unit is examined to built-in signal simultaneously
Test coil and the external high signal with transformer are measured, when built-in signal detection coil generation signal is detected, externally
Putting height carries out center Frequency Domain Integration with current transformer, calculates accurate discharge charge amount, when height does not have with current transformer
During signal, it is judged as background noise, realizes accurate partial discharge detection.
Office with built-in signal detection coil, the external high synthesis for matching somebody with somebody current transformer and external signal processing unit puts
Monitoring device, its signal processing unit can connect terminal, realize then the on-line real-time measuremen that high tension cable office puts,
And the change played a game high-volume is recorded and is counted.According to prolonged on-line checking, high-tension electricity can be very easily measured
Variable condition is put in cable office.It is excessively obvious that growth trend is put in authorities, accurately can report to the police, and reminds cable life near, safe
Protection cable operation, excludes electric cable explosion hidden danger.
The above is only that preferred implementation of the present utility model is described, and is not to model of the present utility model
Enclose and be defined, on the premise of without departing from this utility model design spirit, this area ordinary skill technical staff is to this practicality
Various modifications and improvement that new technical scheme is made, all should fall into the protection model that claims of the present utility model determine
In enclosing.
Claims (13)
1. monitoring device is put in a kind of comprehensive office, it is characterised in that：Monitoring device is put in the comprehensive office includes signal detection line
Circle（1）, signal processing unit（2）Match somebody with somebody current transformer with high（3）；The signal detection coil（1）It is built in Integration Authority and puts prison
Survey device, the signal detection coil（1）Positioned at rubber insulation（4）With cable armouring（5）Centre, the signal detection coil
（1）For judging high tension cable whether put by generation office；It is described high with current transformer（3）It is coated at cable armouring ground connection whip, institute
State high with current transformer（3）With signal processing unit（2）Connection, it is described high with current transformer（3）For detecting discharge capacity；
The signal processing unit（2）It is placed on Integration Authority and puts monitoring device, the signal processing unit（2）With signal detection coil
（1）Connection, the signal processing unit（2）For receiving signal detection coil（1）Transmission signal and external high mutual with electric current
Sensor（3）Signal, calculates discharge charge amount and judges background noise, realize accurate partial discharge detection.
2. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal detection coil（1）Using
Horizontal is installed.
3. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal detection coil（1）Using
Longitudinal installation.
4. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal detection coil（1）It is built-in
There is high frequency magnetic core.
5. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal detection coil（1）For ellipse
Circle, so as to longitudinal inside high tension cable.
6. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal detection coil（1）Length
Spend for 5cm, be highly 1cm.
7. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal processing unit（2）It is interior
Portion has high speed A/D chip, and the picking rate of the high speed A/D chip is the 60M/ seconds.
8. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal processing unit（2）It is interior
Portion also has fast fourier transform processing unit.
9. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal processing unit（2）Connection
Terminal, realizes the on-line real-time measuremen that high tension cable office puts, and the change played a game high-volume is recorded and counted.
10. monitoring device is put in comprehensive office as claimed in claim 1, it is characterised in that：The signal processing unit（2）It is internal
Using integral algorithm, discharge charge amount is calculated in the way of mid frequency is integrated.
Monitoring device is put in 11. comprehensive offices as claimed in claim 1, it is characterised in that：It is described high with current transformer（3）Adopt
With the high-frequency mutual inductor that response frequency is 5-20MHz.
Monitoring device is put in 12. comprehensive offices as claimed in claim 1, it is characterised in that：It is described high with current transformer（3）Adopt
With breathing out not structure.
Monitoring device is put in 13. offices comprehensive as claimed in claim 1, it is characterised in that：It is described external high with current transformer（3）
Two are provided with, two external high with current transformer（3）It is outer respectively to be located at high tension cable earth cable two ends to be measured difference
Connect external signal processing unit（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620988357.XU CN206038828U (en) | 2016-08-30 | 2016-08-30 | Monitoring devices is put in combined office |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620988357.XU CN206038828U (en) | 2016-08-30 | 2016-08-30 | Monitoring devices is put in combined office |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038828U true CN206038828U (en) | 2017-03-22 |
Family
ID=58302499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620988357.XU Active CN206038828U (en) | 2016-08-30 | 2016-08-30 | Monitoring devices is put in combined office |
Country Status (1)
| Country | Link |
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| CN (1) | CN206038828U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353648A (en) * | 2016-08-30 | 2017-01-25 | 浙江新图维电子科技有限公司 | Comprehensive partial discharge monitoring device and method |
| CN108828398A (en) * | 2018-03-09 | 2018-11-16 | 长沙理工大学 | A kind of single-core cable partial discharge location method based on structural similarity algorithm |
| US11567146B2 (en) | 2018-09-10 | 2023-01-31 | 3M Innovative Properties Company | Electrical power cable monitoring device using low side electrode and earth ground separation |
| US11604218B2 (en) | 2018-09-10 | 2023-03-14 | 3M Innovative Properties Company | Electrical power cable monitoring device including partial discharge sensor |
| US11670930B2 (en) | 2018-09-10 | 2023-06-06 | 3M Innovative Properties Company | Support structure for cable and cable accessory condition monitoring devices |
| US11988703B2 (en) | 2019-12-31 | 2024-05-21 | 3M Innovative Properties Company | Monitoring system for evaluating a condition of an electrical grid |
-
2016
- 2016-08-30 CN CN201620988357.XU patent/CN206038828U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353648A (en) * | 2016-08-30 | 2017-01-25 | 浙江新图维电子科技有限公司 | Comprehensive partial discharge monitoring device and method |
| CN106353648B (en) * | 2016-08-30 | 2024-04-09 | 浙江新图维电子科技有限公司 | Comprehensive partial discharge monitoring method |
| CN108828398A (en) * | 2018-03-09 | 2018-11-16 | 长沙理工大学 | A kind of single-core cable partial discharge location method based on structural similarity algorithm |
| CN108828398B (en) * | 2018-03-09 | 2020-11-06 | 长沙理工大学 | Single-core cable partial discharge positioning method based on structural similarity algorithm |
| US11567146B2 (en) | 2018-09-10 | 2023-01-31 | 3M Innovative Properties Company | Electrical power cable monitoring device using low side electrode and earth ground separation |
| US11604218B2 (en) | 2018-09-10 | 2023-03-14 | 3M Innovative Properties Company | Electrical power cable monitoring device including partial discharge sensor |
| US11670930B2 (en) | 2018-09-10 | 2023-06-06 | 3M Innovative Properties Company | Support structure for cable and cable accessory condition monitoring devices |
| US11988703B2 (en) | 2019-12-31 | 2024-05-21 | 3M Innovative Properties Company | Monitoring system for evaluating a condition of an electrical grid |
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