CN209513975U - A kind of authentic partial discharge monitoring device of switchgear - Google Patents
A kind of authentic partial discharge monitoring device of switchgear Download PDFInfo
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- CN209513975U CN209513975U CN201822088210.7U CN201822088210U CN209513975U CN 209513975 U CN209513975 U CN 209513975U CN 201822088210 U CN201822088210 U CN 201822088210U CN 209513975 U CN209513975 U CN 209513975U
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- partial discharge
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- switchgear
- intelligent terminal
- monitoring device
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Abstract
The utility model relates to a kind of authentic partial discharge monitoring devices of switchgear, including authentic partial discharge analysis system, Intelligent terminal and authentic partial discharge monitor, authentic partial discharge monitor both ends respectively with Intelligent terminal and authentic partial discharge analysis system data connection, authentic partial discharge monitor is equipped with the arrester being connected with switchgear, arrester bottom is equipped with the pedestal being connected with switchgear, the Intelligent terminal being connected with arrester is equipped between connecting terminal and pedestal, Intelligent terminal one end is connected separately with concatenated casing main capacitance and signal acquisition capacitor, casing main capacitance incoming end and signal acquisition capacitor pick out end and are connected separately with high-voltage end and ground wire, Intelligent terminal output end passes through Partial discharge signal port and power frequency component port simultaneously and is equipped with the signal cable being connected with authentic partial discharge monitor.The utility model has the advantages that the utility model can actual response partial discharge of switchgear numerical value, while realizing multiple Channel Synchronous partial discharge detections, detection accuracy is high.
Description
Technical field
The utility model belongs to high voltage power transmission and transforming and controller switching equipment technical field, and in particular to a kind of high-tension switch cabinet is authentic
Partial discharge monitoring device.
Background technique
High-tension switch cabinet is widely used in distribution system, makees to receive to be used with distribution electric energy.Running switchgear is once
There is insulation fault, will cause equipment damage, power failure etc., cause great economic loss to user.Establish effective insulation prison
It surveys and diagnostic system is predictable, evaluates reliability and the service life of the insulation of switchgear complete set of equipments, early detection failure, and propose to control
Countermeasure is managed, the generation of insulation fault is prevented.
What reflecting first when insulation weak spot occurred in high voltage electric equipment is that shelf depreciation obviously increases.Insulation is weak
The appearance of point, which develops to insulation breakdown, a very long process, and the variation for monitoring partial discharge quantity can be exhausted in early detection
Edge hidden danger prevents from developing into insulation fault, and the monitoring of partial discharge quantity is one of most effective insulating monitoring means of switchgear.
The difficult point of switch cabinet partial discharge monitoring is in switchgear that electrical equipment is numerous, interferes with each other greatly, without direct office
Discharge signal monitors interface.
Utility model content
The utility model aim is to provide a kind of authentic partial discharge monitoring device of switchgear, and providing one kind can be realized synchronous mark
Determine, the authentic partial discharge monitoring device of switchgear that the operation is stable and detection accuracy are high.
In order to achieve the goal above, the technical solution adopted in the utility model are as follows: a kind of authentic partial discharge monitoring dress of switchgear
Set, including authentic partial discharge analysis system, Intelligent terminal and authentic partial discharge monitor, the authentic partial discharge monitor both ends respectively with
The Intelligent terminal and the authentic partial discharge analysis system data connection, the authentic partial discharge monitor are equipped with and switchgear phase
The arrester of connection, the arrester bottom are equipped with the pedestal being connected with the switchgear, and the base top passes through equal
Pressure cover is connected with connecting terminal, and the intelligence being connected with the arrester is equipped between the connecting terminal and the pedestal
Energy terminal, described Intelligent terminal one end is connected separately with concatenated casing main capacitance and signal acquisition capacitor, the main electricity of described sleeve pipe
Hold incoming end and the signal acquisition capacitor picks out end and is connected separately with high-voltage end and ground wire, the Intelligent terminal output end is simultaneously
The signal cable being connected with the authentic partial discharge monitor, the letter are equipped with by Partial discharge signal port and power frequency component port
Number cable one end is electrically connected with high-pressure side three-phase, neutral point and the low-pressure side three-phase on the switchgear.
Further, the arrester outer wall is equipped with the casing flange being connected with the Intelligent terminal and is located at institute
State the silicon rubber cluster parachute above casing flange.
Further, the authentic partial discharge monitor outer wall is connected with equidistant indicator light.
Further, it is placed in corrugated protective conduits outside the signal cable.
Further, described sleeve pipe main capacitance and the signal acquisition capacitor are integrally formed, and the signal acquisition capacitor
It is formed by drawing a tap when coiling dry type glass bushing.
Further, the Intelligent terminal side is connected between the Partial discharge signal port and power frequency component port
Insulation early-warning lamp.
The utility model has the technical effect that
(1) signal coupling unit is placed in inside pipe casing, and can design specialized shielded layer, there is good shield effectiveness,
Effectively inhibit influence of the external disturbance to partial discharge monitoring on site.
(2) detection limit is the detected value of discharge capacity, completely the same with laboratory partial discharge detection calibration mode, can be really anti-
Inductive switch cabinet shelf depreciation numerical value, while realizing multiple Channel Synchronous partial discharge detections, including configure in each switchgear multiple
Test point breaks through the limitation of existing partial discharge on-line monitoring test point.
(3) Intelligent terminal can extract power frequency component and partial discharge of switchgear signal simultaneously, and wherein power frequency component is used for
Transient voltage monitoring, high-frequency signal are used for Partial Discharge Detection.
(4) authentic partial discharge analysis system is integrated with discharge capacity/phase distribution figure, discharge time/phase distribution figure, electric discharge
Amount/time-tendency graph, discharge time/time-tendency graph and a variety of data are shown and analysis mode realize the authentic office of switchgear
Put the management of monitoring device operating status.
Detailed description of the invention
Fig. 1 is the system schematic of the authentic partial discharge monitoring device of the utility model；
Fig. 2 is the structural schematic diagram of the authentic partial discharge monitoring device of the utility model switchgear；
Fig. 3 is the utility model Intelligent terminal structural schematic diagram；
Fig. 4 is the connection schematic diagram of the authentic partial discharge monitor of the utility model.
Appended drawing reference: the authentic partial discharge analysis system of 1-；2- Intelligent terminal；The true partial discharge monitor of 3-；4- switchgear；5- is lightning-arrest
Device；6- pedestal；7- grading shield；8- connecting terminal；9- casing main capacitance；10- signal acquisition capacitor；11- high-voltage end；12- ground wire；
13- Partial discharge signal port；14- power frequency component port；15- signal cable；16- casing flange；17- silicon rubber cluster parachute；18- instruction
Lamp；19- corrugated protective conduits；20- insulation early-warning lamp.
Specific embodiment
Referring to attached drawing 1-4, a kind of authentic partial discharge monitoring device of switchgear, including authentic partial discharge analysis system 1, Intelligent terminal
2 and authentic partial discharge monitor 3, authentic 3 both ends of partial discharge monitor respectively with the Intelligent terminal 2 and the authentic partial discharge point
1 data connection of analysis system, the authentic partial discharge monitor 3 are equipped with the arrester 5 being connected with switchgear 4, the arrester 5
Bottom is equipped with the pedestal 6 being connected with the switchgear 4, passes through grading shield 7 at the top of the pedestal 6 and is connected with connecting terminal 8,
The Intelligent terminal 2 being connected with the arrester 5, the intelligence are equipped between the connecting terminal 8 and the pedestal 6
2 one end of terminal is connected separately with concatenated casing main capacitance 9 and signal acquisition capacitor 10,9 incoming end of described sleeve pipe main capacitance and
The signal acquisition capacitor 10 picks out end and is connected separately with high-voltage end 11 and ground wire 12, and 2 output end of Intelligent terminal leads to simultaneously
It crosses Partial discharge signal port 13 and power frequency component port 14 and is equipped with the signal cable 15 being connected with the authentic partial discharge monitor, institute
15 one end of signal cable is stated to be electrically connected with high-pressure side three-phase, neutral point and the low-pressure side three-phase on the switchgear 4.
Preferably, the synchronization partial discharge detection in up to 9 channels realizes comprehensive switch cabinet partial discharge monitoring；Detection limit is to put
Electricity pC, just the same with laboratory partial discharge detection calibration mode, the true shelf depreciation numerical value for reflecting switchgear 4 has electricity
The arrester 5 of pressure monitoring interface or the casing with voltage monitoring interface (Intelligent terminal) are mounted in each switchgear, these
Arrester 5 or casing have dry-type capacitance screen, provide the main capacitance C1 of 80~500pF, switch is acquired in a manner of direct-coupled
Partial discharge signal in cabinet 4；Voltage monitoring interface is a kind of Intelligent terminal 2, is drawn from derided capacitors C2, can extract power frequency letter simultaneously
Number and Partial discharge signal.2 output end of Intelligent terminal is connected to the authentic partial discharge monitor by signal cable.The partial discharge
Monitor is designed using double-layer box body, effectively the extraneous signal interference of shielding, the powerful processor of build-in function, multi-channel synchronous
It samples, while the Partial discharge signal in detection switch cabinet from different directions, the insulation defect in position-sensing switch cabinet.The partial discharge monitoring
The data of instrument acquisition are supplied to the partial discharge analysis system and are analyzed.The partial discharge analysis system is integrated with discharge capacity/phase
Bit distribution figureDischarge time/phase distribution figureDischarge capacity/time-tendency graph (q-T), discharge time/
A variety of data such as time-tendency graph (N-T), Day Line Chart, moon line chart are shown and analysis mode, realize the authentic partial discharge monitoring of switchgear
The management of equipment running status, and diagnosis report is automatically generated, switchgear is operating abnormally alarm.
Preferably, 5 outer wall of arrester is equipped with the casing flange 16 being connected with the Intelligent terminal 2 and is located at
The silicon rubber cluster parachute 17 of 16 top of described sleeve pipe flange.
Preferably, authentic 3 outer wall of partial discharge monitor is connected with equidistant indicator light 18.
Preferably, it is placed in corrugated protective conduits 19 outside the signal cable 15.
Preferably, described sleeve pipe main capacitance 9 and the signal acquisition capacitor 10 are integrally formed, and the signal acquisition capacitor
10 are formed by drawing a tap when coiling dry type glass bushing.
Preferably, 2 side of Intelligent terminal is connected with positioned at the Partial discharge signal port 13 and power frequency component port 14
Between insulation early-warning lamp 20, insulation early-warning lamp 20 setting can alarm equipment fault, improve safety.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (6)
1. a kind of authentic partial discharge monitoring device of switchgear, which is characterized in that including authentic partial discharge analysis system (1), Intelligent terminal
(2) and authentic partial discharge monitor (3), authentic partial discharge monitor (3) both ends respectively with the Intelligent terminal (2) and described complete
True partial discharge analysis system (1) data connection, the authentic partial discharge monitor (3) are lightning-arrest equipped with what is be connected with switchgear (4)
Device (5), arrester (5) bottom are equipped with the pedestal (6) being connected with the switchgear (4), lead at the top of the pedestal (6)
It crosses grading shield (7) to be connected with connecting terminal (8), be equipped with and the arrester between the connecting terminal (8) and the pedestal (6)
(5) Intelligent terminal (2) being connected, described Intelligent terminal (2) one end are connected separately with concatenated casing main capacitance (9)
With signal acquisition capacitor (10), described sleeve pipe main capacitance (9) incoming end and the signal acquisition capacitor (10) pick out end and connect respectively
It is connected to high-voltage end (11) and ground wire (12), Intelligent terminal (2) output end passes through Partial discharge signal port (13) and power frequency simultaneously
Signal port (14) is equipped with the signal cable (15) being connected with the authentic partial discharge monitor, described signal cable (15) one end
It is electrically connected with high-pressure side three-phase, neutral point and the low-pressure side three-phase on the switchgear (4).
2. the authentic partial discharge monitoring device of a kind of switchgear according to claim 1, which is characterized in that the arrester (5)
Outer wall is equipped with the casing flange (16) being connected with the Intelligent terminal (2) and is located above described sleeve pipe flange (16)
Silicon rubber cluster parachute (17).
3. the authentic partial discharge monitoring device of a kind of switchgear according to claim 1, which is characterized in that the authentic partial discharge prison
It surveys instrument (3) outer wall and is connected with equidistant indicator light (18).
4. the authentic partial discharge monitoring device of a kind of switchgear according to claim 1, which is characterized in that the signal cable
(15) external to be placed in corrugated protective conduits (19).
5. the authentic partial discharge monitoring device of a kind of switchgear according to claim 1, which is characterized in that described sleeve pipe main capacitance
(9) it is integrally formed with the signal acquisition capacitor (10), and the signal acquisition capacitor (10) passes through coiling dry type glass bushing
When draw a tap and formed.
6. the authentic partial discharge monitoring device of a kind of switchgear according to claim 1, which is characterized in that the Intelligent terminal
(2) side is connected with the insulation early-warning lamp (20) between the Partial discharge signal port (13) and power frequency component port (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822088210.7U CN209513975U (en) | 2018-12-13 | 2018-12-13 | A kind of authentic partial discharge monitoring device of switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822088210.7U CN209513975U (en) | 2018-12-13 | 2018-12-13 | A kind of authentic partial discharge monitoring device of switchgear |
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| Publication Number | Publication Date |
|---|---|
| CN209513975U true CN209513975U (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822088210.7U Active CN209513975U (en) | 2018-12-13 | 2018-12-13 | A kind of authentic partial discharge monitoring device of switchgear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406974A (en) * | 2018-12-13 | 2019-03-01 | 合肥金瑞配网电气设备有限公司 | A kind of authentic partial discharge monitoring device of switchgear |
-
2018
- 2018-12-13 CN CN201822088210.7U patent/CN209513975U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406974A (en) * | 2018-12-13 | 2019-03-01 | 合肥金瑞配网电气设备有限公司 | A kind of authentic partial discharge monitoring device of switchgear |
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