CN209446712U - One kind being suitable for groove profile bus partial discharge detection device - Google Patents
One kind being suitable for groove profile bus partial discharge detection device Download PDFInfo
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- CN209446712U CN209446712U CN201820438753.4U CN201820438753U CN209446712U CN 209446712 U CN209446712 U CN 209446712U CN 201820438753 U CN201820438753 U CN 201820438753U CN 209446712 U CN209446712 U CN 209446712U
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- groove profile
- connect
- door
- metal screen
- fixed screw
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Abstract
The utility model relates to partial discharge detection methods and partial discharge sensor technical field, it is especially a kind of to be suitable for groove profile bus partial discharge detection device, including three-phase conductor, groove profile shell, insulating support, metal screen door, metallic door fixed screw, signal coupling electrode, electrode insulation fixed screw, connect framework, coupled capacitor, sensor；The front installation of framework is connect there are two metal screen door, two metal screen doors are fixed on groove profile shell by metallic door fixed screw, signal coupling electrode one end is mounted on the lower section of metal screen door by electrode insulation fixed screw, the other end is connect with framework is connect, the central point of signal coupling electrode is connected by one end of conducting wire and coupled capacitor, and the other end of coupled capacitor is connect by conducting wire with sensor.The utility model is suitable for the electrical equipment of various similar groove profile bus bar configurations, and generally conventional shelf depreciation live detection can be carried out to it and the monitoring of long-term PD Online uses, detection sensitivity is high.
Description
Technical field
The utility model relates to partial discharge detection methods and partial discharge sensor technical field, more particularly to one kind to be suitable for groove profile
Bus partial discharge detection device.
Background technique
The partial discharge detection method of traditional groove profile bus is more complex, and when detection needs sensor being mounted on conductor and shell
Ground connection between, install sensor or be completed every time, when disassembling sensor, which must all carry out whole service bus, to stop
Electricity condition just can be carried out operation, and disposably install the sensor of all tests simultaneously when having a power failure and installing sensor
It is good, so the sensor of test is also intended to very more, carry out centainly cumbersome to detection work belt.In addition, when installing sensor
When be powered again detection there is also there is certain risk because sensor is directly installed on one end of conductor and the earthing of casing, this
Quality requirement to sensor be also it is quite high, when be powered generate surge voltage when, if sensor mass is below standard, surge electricity
Sensor breakdown directly will be led to background test equipment damage by stream, more seriously electrical hazard will be caused to endanger
And personal safety.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and the one kind proposed is suitable for groove profile
Bus partial discharge detection device.
To achieve the goals above, the utility model adopts the technical scheme that
It designs a kind of suitable for groove profile bus partial discharge detection device, including three-phase conductor, groove profile shell, insulating support, gold
Belong to shield door, metallic door fixed screw, signal coupling electrode, electrode insulation fixed screw, connect framework, coupled capacitor, sensor；
Three-phase conductor is mounted on insulating support, connects metal screen door there are two the front installations of framework, two metal screen doors
It is fixed on groove profile shell by metallic door fixed screw, signal coupling electrode one end is mounted on by electrode insulation fixed screw
The lower section of metal screen door, the other end are connect with framework is connect, and the central point of signal coupling electrode passes through conducting wire and coupled capacitor
The other end of one end connection, coupled capacitor is connect by conducting wire with sensor.
Preferably, the three-phase conductor is mounted on insulating support, and conductor can be made not change because of various vibration facters
Become the position between conductor, it is ensured that the safety and stability of whole power supply line's operation.
Preferably, the metal screen door is detachable metal shield door.
Preferably, the metal screen door is fixed on groove profile shell by metallic door fixed screw, can make metal screen
It covers that both door and groove profile shell are fully switched on to combine together, shield door can also be torn open at any time and be fallen when if you need to be overhauled to working line,
Easy access.
Preferably, the other end of the signal coupling electrode connects framework, can be avoided and coupling electrode is not allowed to be mounted on
Suspended voltage is generated in energized equipment and jeopardizes the personal safety of tester and the generation of electrical hazard.
Preferably, the central point of the signal coupling electrode concatenates coupled capacitor by two conducting wires and is output to sensor,
The collected signal of sensor institute is output to backstage again and carries out signal analysis and processing.
The utility model proposes one kind be suitable for groove profile bus partial discharge detection device, beneficial effect is: this is suitable for
Groove profile bus partial discharge detection device is suitable for the electrical equipment of various similar groove profile bus bar configurations, and its detection method can be to it
It carries out generally conventional shelf depreciation live detection and the monitoring of long-term PD Online uses；Detection sensitivity is high, the center frequency of detection
Rate is 40 MHz, and frequency response range width can reach 70MHz；Sensor installation is simple, convenient for disassembly and assembly, can charge dismounting.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of schematic diagram of internal structure suitable for groove profile bus partial discharge detection device.
Fig. 2 be the utility model proposes a kind of external structure schematic diagram suitable for groove profile bus partial discharge detection device.
Fig. 3 be the utility model proposes a kind of groove profile bus coupling electrode suitable for groove profile bus partial discharge detection device
Method test schematic.
In figure: three-phase conductor 1, groove profile shell 2, insulating support 3, metal screen door 4, metallic door fixed screw 5, signal coupling
Composite electrode 6, electrode insulation fixed screw 7 connect framework 8, coupled capacitor 9, sensor 10.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-2, a kind of to be suitable for groove profile bus partial discharge detection device, including three-phase conductor 1, groove profile shell 2, insulation
Bracket 3, metallic door fixed screw 5, signal coupling electrode 6, electrode insulation fixed screw 7, connects framework 8, coupling at metal screen door 4
Close capacitor 9, sensor 10；Three-phase conductor 1 is mounted on insulating support 3, connects metal screen door there are two the front installations of framework 8
4, two metal screen doors 4 are fixed on groove profile shell 2 by metallic door fixed screw 5, and 6 one end of signal coupling electrode passes through electricity
Pole insulation fixed screw 7 is mounted on the lower section of metal screen door 4, and the other end is connect with framework 8 is connect, in signal coupling electrode 6
Heart point is connect by conducting wire with one end of coupled capacitor 9, and the other end of coupled capacitor 9 is connect by conducting wire with sensor 10, is connect
Framework 8 is specially the ground terminal of connection signal coupling electrode 6 and metal screen door 4.
Three-phase conductor 1 is mounted on insulating support 3, and conductor can be made not change between conductor because of various vibration facters
Position, it is ensured that the safety and stability of whole power supply line operation.
Metal screen door 4 is detachable metal shield door, and metal screen door 4 is fixed on slot by metallic door fixed screw 5
On type shell 2, it can make both metal screen door 4 and groove profile shell 2 are fully switched on to combine together, if you need to overhaul to working line
When shield door can also be torn open at any time and fall, easy access.
The other end of signal coupling electrode 6 connects framework 8, can be avoided and coupling electrode is not allowed to be mounted in energized equipment
It generates suspended voltage and jeopardizes the personal safety of tester and the generation of electrical hazard.
The central point of signal coupling electrode 6 concatenates coupled capacitor 9 by two conducting wires and is output to sensor 10, sensor 10
The collected signal of institute is output to backstage again and carries out signal analysis and processing.
Referring to Fig. 3, working principle is specific as follows: distribution electricity is generated between two metal screen doors 4 and signal coupling electrode 6
Hold, when generating local discharge signal, electric current passes through each capacitance profile branch flow direction sensor 10, so that electric current returns
To shelf depreciation, a complete loops are formed.There are multiple distribution capacity in entire groove profile bus running equipment, to exchange
Signal code forms a plurality of diverter branch, can generate certain influence, but internal distribution electricity to the detection of local discharge signal
Hold all smaller tool within several hundred picofarads, concatenate a bulky capacitor coupler in two input terminals of detection sensor 10,
And capacitor's capacity is far longer than distribution capacity caused by groove profile inside, i.e.,, when detection sensor 10 exports branch
When capacitance is greater than internal distributed capacitance, it is equivalent to build a low-impedance signal path directly to AC signal current
(high pass low-resistance), allows sensor that can collect maximum Partial discharge signal.
The utility model be suitable for various similar groove profile bus bar configurations electrical equipment, and its detection method can to its into
The generally conventional Partial Discharge Detection of row and the monitoring of long-term PD Online use；Detection sensitivity is high, and the centre frequency of detection is
40MHz, frequency response range width can reach 70MHz；Sensor installation is simple, convenient for disassembly and assembly, can charge dismounting.
More than, the only preferable specific embodiment of the utility model, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, according to the utility model
Technical solution and its utility model design be subject to equivalent substitution or change, should all cover the protection scope of the utility model it
It is interior.
Claims (2)
1. one kind be suitable for groove profile bus partial discharge detection device, which is characterized in that including three-phase conductor (1), groove profile shell (2),
Insulating support (3), metal screen door (4), metallic door fixed screw (5), signal coupling electrode (6), electrode insulation fixed screw
(7), framework (8), coupled capacitor (9) and sensor (10) are connect；Three-phase conductor (1) is mounted on insulating support (3), connects framework
(8) there are two metal screen door (4), two metal screen doors (4) pass through metallic door fixed screw (5) for front installation
It is fixed on groove profile shell (2), signal coupling electrode (6) one end is mounted on metallic shield by electrode insulation fixed screw (7)
The lower section of door (4), the other end are connect with framework (8) is connect, and the central point of signal coupling electrode (6) passes through conducting wire and coupled capacitor
(9) one end connection, the other end of coupled capacitor (9) are connect by conducting wire with sensor (10).
2. according to claim 1 a kind of suitable for groove profile bus partial discharge detection device, which is characterized in that the metal screen
Covering door (4) is detachable metal shield door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820438753.4U CN209446712U (en) | 2018-03-29 | 2018-03-29 | One kind being suitable for groove profile bus partial discharge detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820438753.4U CN209446712U (en) | 2018-03-29 | 2018-03-29 | One kind being suitable for groove profile bus partial discharge detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446712U true CN209446712U (en) | 2019-09-27 |
Family
ID=68008100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820438753.4U Active CN209446712U (en) | 2018-03-29 | 2018-03-29 | One kind being suitable for groove profile bus partial discharge detection device |
Country Status (1)
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| CN (1) | CN209446712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866621A (en) * | 2021-09-26 | 2021-12-31 | 广东电网有限责任公司 | Partial discharge signal detection system of high-voltage switch cabinet |
-
2018
- 2018-03-29 CN CN201820438753.4U patent/CN209446712U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866621A (en) * | 2021-09-26 | 2021-12-31 | 广东电网有限责任公司 | Partial discharge signal detection system of high-voltage switch cabinet |
| CN113866621B (en) * | 2021-09-26 | 2023-06-13 | 广东电网有限责任公司 | Partial discharge signal detection system of high-voltage switch cabinet |
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