CN104655996A - Live detection device for partial discharge of GIS cable terminal, and use method of device - Google Patents
Live detection device for partial discharge of GIS cable terminal, and use method of device Download PDFInfo
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- CN104655996A CN104655996A CN201510057260.7A CN201510057260A CN104655996A CN 104655996 A CN104655996 A CN 104655996A CN 201510057260 A CN201510057260 A CN 201510057260A CN 104655996 A CN104655996 A CN 104655996A
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Abstract
The invention discloses a live detection device for partial discharge of a GIS cable terminal, and a use method of the device. According to the device, a partial discharge live detector is arranged, and comprises an ultrasonic sensor, an ultrahigh frequency sensor, a charge power supply, and a filter amplification and signal processing display alarm unit. The use method comprises the following steps: penetrating the ultrahigh frequency sensor through a grounding wire of a high-voltage cable; penetrating a current sensor through the high-voltage cable; enabling the partial discharge live detector to be in tight contact with an epoxy body so as to realize partial discharge live detection or real-time monitoring on the GIS cable terminal. With the combination of high frequency detection, ultrasonic wave detection and ultrahigh frequency detection, a power frequency current sensor is adopted as the charge power supply and a phase position signal, correlation of quadrant phase positions I and III and correlation of 100 Hz are taken as judgment criterions, a columnar display manner is adopted, and the device can give out an alarm signal when the value exceeds an alarm value. Live partial discharge detection on the GIS cable terminal can be achieved, real-time monitoring can be also achieved, and the live detection device is simple and convenient to mount and manufacture, and facilitates in-situ application.
Description
Technical field
The invention belongs to 110kV and above Voltage Cable Lines Construction GIS terminal shelf depreciation live detection technical field, particularly relate to a kind of GIS cable termination live testing apparatus for local discharge and using method thereof.
Background technology
Method at present for 110kV and above Voltage Cable Lines Construction Geographic Information System (GIS) terminal Partial Discharge Detection mainly contains high frequency, ultrasound wave and ultrahigh frequency three kinds, the frequency separation that three of three kinds of detection methods corresponding local discharge signals are respectively different.Existing checkout equipment is all for a certain method wherein, does not have set three kinds of detection methods in the checkout equipment of one.When Geographic Information System (GIS) cable termination exists shelf depreciation insulation hidden danger, three kinds of detection methods together detect comparative analysis of being more convenient for, and more effectively can detect insulation hidden danger.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of GIS cable termination live testing apparatus for local discharge and using method thereof, is intended to solution existing for 110kV and the inefficiency of above Voltage Cable Lines Construction Geographic Information System (GIS) terminal detection method for local discharge existence, the problem of complicated operation.
The embodiment of the present invention realizes like this, a kind of GIS cable termination live testing apparatus for local discharge, live detection instrument is put in the left side office of setting of this GIS cable termination live testing apparatus for local discharge, and office puts live detection instrument and comprises: ultrasonic sensor, uhf sensor, charge power supply, filter and amplification, signal transacting display alarm unit;
Ultrasonic sensor, uhf sensor connect filter and amplification, signal transacting display alarm unit, and charge power supply connects filter and amplification, signal transacting display alarm unit.
Further, this GIS cable termination live testing apparatus for local discharge also comprises: GIS housing, epoxy body, tail pipe, ground wire, high frequency sensors, high-tension cable, current sensor;
Epoxy body is arranged on GIS enclosure interior, the below of epoxy body arranges tail pipe, tail pipe connects ground wire, high-tension cable union tail, the left side that live detection instrument is arranged on GIS cable termination live testing apparatus for local discharge is put in office, and be connected with GIS housing, epoxy body, tail pipe, live detection instrument is put in high frequency sensors and current sensor connection office.
Further, the interface display that live detection instrument is put in office comprises: I, III quadrant dependence monitoring lamp, two 100Hz correlativitys monitoring lamps, columns display and alarming values.
Further, office puts live detection instrument and adopts power current sensor as charge power supply and phase signal, and I, III quadrant phase correlation and 100Hz correlativity, as distinguishing rule, adopt column display, when numerical value exceedes alarming value, send alerting signal.
Another object of the embodiment of the present invention is the using method providing a kind of GIS cable termination live testing apparatus for local discharge, and the using method of this GIS cable termination live testing apparatus for local discharge comprises the following steps:
Step one, by the ground wire of high frequency sensors through high-tension cable;
Step 2, by current sensor through high-tension cable;
Step 3, puts live detection instrument and epoxy body close contact by office;
Step 4, realizes shelf depreciation live detection or the Real-Time Monitoring of GIS cable termination.
GIS cable termination live testing apparatus for local discharge provided by the invention and using method thereof, based on high frequency, ultrasound wave and the ultra-high-frequency detection GIS cable termination shelf depreciation live detection instrument in one, adopt power current sensor as charge power supply and phase signal, I, III quadrant phase correlation and 100Hz correlativity are as distinguishing rule, employing column shows, when numerical value exceedes alarming value, device can send alerting signal.Present invention achieves the shelf depreciation live detection of GIS cable termination, also can Real-Time Monitoring, install affected easy, be convenient to rig-site utilization.
Accompanying drawing explanation
Fig. 1 is the GIS cable termination live testing apparatus for local discharge structural representation that the embodiment of the present invention provides;
Fig. 2 is that live detection instrument structural representation is put in the office that the embodiment of the present invention provides;
Fig. 3 is the interface display figure that live detection instrument is put in office that the embodiment of the present invention provides;
In figure: 1, GIS housing; 2, epoxy body; 3, tail pipe; 4, ground wire; 5, high frequency sensors; 6, high-tension cable; 7, current sensor; 8, live detection instrument is put in office; 8-1, ultrasonic sensor; 8-2, uhf sensor; 8-3, charge power supply; 8-4, filter and amplification, signal transacting display alarm unit;
Fig. 4 is the using method process flow diagram of the GIS cable termination live testing apparatus for local discharge that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 1, the embodiment of the present invention GIS cable termination live testing apparatus for local discharge primarily of: live detection instrument 8 is put in GIS housing 1, epoxy body 2, tail pipe 3, ground wire 4, high frequency sensors 5, high-tension cable 6, current sensor 7, office;
It is inner that epoxy body 2 is arranged on GIS housing 1, the below of epoxy body 2 arranges tail pipe 3, tail pipe 3 connects ground wire 4, high-tension cable 6 union tail 3, the left side that live detection instrument 8 is arranged on GIS cable termination live testing apparatus for local discharge is put in office, and be connected with GIS housing 1, epoxy body 2, tail pipe 3, live detection instrument 8 is put in high frequency sensors 5 and current sensor 7 connection office.
As shown in Figure 2, office puts live detection instrument 8 and also comprises: ultrasonic sensor 8-1, uhf sensor 8-2, charge power supply 8-3, filter and amplification, signal transacting display alarm unit 8-4;
Ultrasonic sensor 8-1, uhf sensor 8-2 connect filter and amplification, signal transacting display alarm unit 8-4, charge power supply 8-3 connect filter and amplification, signal transacting display alarm unit 8-4;
As shown in Figure 3, live detection instrument 8 interface display figure is put in office of the present invention, comprising: lamp (I, III quadrant dependence); Lamp (100Hz correlativity); Lamp (100Hz correlativity); Column shows; Alarming value.
Office puts live detection instrument 8 and adopts power current sensor as charge power supply and phase signal, and I, III quadrant phase correlation and 100Hz correlativity are as distinguishing rule, and adopt column display, when numerical value exceedes alarming value, device can send alerting signal.
As shown in Figure 4, the using method of the GIS cable termination live testing apparatus for local discharge of the embodiment of the present invention comprises the following steps:
S101: by the ground wire of high frequency sensors through high-tension cable;
S102: by current sensor through high-tension cable;
S103: office is put live detection instrument and epoxy body close contact;
S104: the shelf depreciation live detection realizing GIS cable termination, also can Real-Time Monitoring.
Of the present invention based on high frequency, ultrasound wave and the ultra-high-frequency detection GIS cable termination shelf depreciation live detection instrument in one, detector adopts power current sensor as charge power supply and phase signal, I, III quadrant phase correlation and 100Hz correlativity are as distinguishing rule, employing column shows, when numerical value exceedes alarming value, device can send alerting signal; This detector can realize the shelf depreciation live detection of GIS cable termination, also can Real-Time Monitoring, and this detector is installed affected easy, is convenient to rig-site utilization.
The object of the invention is to overcome the deficiencies in the prior art, there is provided based on high frequency, ultrasound wave and the ultra-high-frequency detection GIS cable termination shelf depreciation live detection instrument in one, this detector adopts power current sensor as charge power supply and phase signal, I, III quadrant phase correlation and 100Hz correlativity are as distinguishing rule, employing column shows, when numerical value exceedes alarming value, device can send alerting signal.This detector can realize the shelf depreciation live detection of GIS cable termination, also can Real-Time Monitoring, and this detector is installed affected easy, is convenient to rig-site utilization.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a GIS cable termination live testing apparatus for local discharge, is characterized in that, live detection instrument is put in the left side office of setting of GIS cable termination live testing apparatus for local discharge, puts with office the high frequency sensors that live detection instrument is connected; Office puts live detection instrument and comprises: ultrasonic sensor, uhf sensor, charge power supply, filter and amplification, signal transacting display alarm unit;
Ultrasonic sensor, uhf sensor connect filter and amplification, signal transacting display alarm unit, and charge power supply connects filter and amplification, signal transacting display alarm unit.
2. GIS cable termination live testing apparatus for local discharge as claimed in claim 1, it is characterized in that, this GIS cable termination live testing apparatus for local discharge also comprises: GIS housing, epoxy body, tail pipe, ground wire, high frequency sensors, high-tension cable, current sensor;
Epoxy body is arranged on GIS enclosure interior, the below of epoxy body arranges tail pipe, tail pipe connects ground wire, high-tension cable union tail, the left side that live detection instrument is arranged on GIS cable termination live testing apparatus for local discharge is put in office, and be connected with GIS housing, epoxy body, tail pipe, live detection instrument is put in high frequency sensors and current sensor connection office.
3. GIS cable termination live testing apparatus for local discharge as claimed in claim 1, it is characterized in that, the interface display that live detection instrument is put in office comprises: I, III quadrant dependence monitoring lamp, two 100Hz correlativity monitoring lamps, column display and alarming values.
4. GIS cable termination live testing apparatus for local discharge as claimed in claim 1, it is characterized in that, office puts live detection instrument and adopts power current sensor as charge power supply and phase signal, I, III quadrant phase correlation and 100Hz correlativity are as distinguishing rule, employing column shows, when numerical value exceedes alarming value, send alerting signal.
5. a using method for GIS cable termination live testing apparatus for local discharge, is characterized in that, the using method of this GIS cable termination live testing apparatus for local discharge comprises the following steps:
Step one, by the ground wire of high frequency sensors through high-tension cable;
Step 2, by current sensor through high-tension cable;
Step 3, puts live detection instrument and epoxy body close contact by office;
Step 4, realizes shelf depreciation live detection or the Real-Time Monitoring of GIS cable termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057260.7A CN104655996A (en) | 2015-02-04 | 2015-02-04 | Live detection device for partial discharge of GIS cable terminal, and use method of device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510057260.7A CN104655996A (en) | 2015-02-04 | 2015-02-04 | Live detection device for partial discharge of GIS cable terminal, and use method of device |
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| CN104655996A true CN104655996A (en) | 2015-05-27 |
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| CN201510057260.7A Pending CN104655996A (en) | 2015-02-04 | 2015-02-04 | Live detection device for partial discharge of GIS cable terminal, and use method of device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044577A (en) * | 2015-08-25 | 2015-11-11 | 国网天津市电力公司 | Partial-discharge charged detection method of transformer |
| CN106405340A (en) * | 2015-07-30 | 2017-02-15 | 上海欧秒电力监测设备有限公司 | GIS fault indication system based on partial discharge sensor |
| CN108646154A (en) * | 2018-06-22 | 2018-10-12 | 广西电网有限责任公司电力科学研究院 | A kind of GIS cable terminations Partial Discharge Detection and analysis and diagnosis system |
| CN108957260A (en) * | 2018-07-10 | 2018-12-07 | 国网北京市电力公司 | Partial discharge detecting system and method, storage medium, processor |
| CN110554284A (en) * | 2019-08-23 | 2019-12-10 | 国网江苏省电力有限公司电力科学研究院 | GIS (geographic information System) -based correlation analysis method and system for partial discharge detection mode |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106405340A (en) * | 2015-07-30 | 2017-02-15 | 上海欧秒电力监测设备有限公司 | GIS fault indication system based on partial discharge sensor |
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| CN108646154A (en) * | 2018-06-22 | 2018-10-12 | 广西电网有限责任公司电力科学研究院 | A kind of GIS cable terminations Partial Discharge Detection and analysis and diagnosis system |
| CN108957260A (en) * | 2018-07-10 | 2018-12-07 | 国网北京市电力公司 | Partial discharge detecting system and method, storage medium, processor |
| CN110554284A (en) * | 2019-08-23 | 2019-12-10 | 国网江苏省电力有限公司电力科学研究院 | GIS (geographic information System) -based correlation analysis method and system for partial discharge detection mode |
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Application publication date: 20150527 |
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