CN112345892B - Auxiliary detection device for partial discharge of high-voltage switch cabinet - Google Patents
Auxiliary detection device for partial discharge of high-voltage switch cabinet Download PDFInfo
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- CN112345892B CN112345892B CN202010994047.XA CN202010994047A CN112345892B CN 112345892 B CN112345892 B CN 112345892B CN 202010994047 A CN202010994047 A CN 202010994047A CN 112345892 B CN112345892 B CN 112345892B
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- 238000001514 detection method Methods 0.000 title claims abstract description 128
- 238000005192 partition Methods 0.000 claims abstract description 21
- 230000003750 conditioning effect Effects 0.000 claims description 47
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 17
- 238000009413 insulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
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Abstract
The invention relates to a high-voltage switch cabinet partial discharge auxiliary detection device which comprises a switch cabinet and a detection device, wherein a partition plate is arranged above the switch cabinet, a mounting frame is arranged above the partition plate, a mounting plate is arranged at the middle part of the upper part of the mounting frame, the detection device is arranged above the mounting plate, a first ultrasonic sensor is arranged at the middle part of the upper part of the interior of the switch cabinet, a switch chamber is arranged below the first ultrasonic sensor, a plurality of bus connectors are uniformly arranged below the switch chamber, bus bars are arranged below the bus connectors, a circuit breaker is arranged below the bus bars, a current transformer is arranged on the left side below the circuit breaker, a voltage transformer is arranged on the right side below the circuit breaker, a wire bent is arranged below the current transformer, a wire bent is arranged above the front of the wire bent, and a cable is arranged on the right side of the wire bent; the invention has the advantages of reasonable structure, remote control, improved detection efficiency and quality, quick and accurate positioning and strong anti-interference capability.
Description
Technical Field
The invention belongs to the technical field of high-voltage switch cabinets, and particularly relates to an auxiliary detection device for partial discharge of a high-voltage switch cabinet.
Background
The high-voltage switch cabinet plays an important role in a power distribution network of the power system, economic loss and social loss caused by power failure accidents are very great, and partial discharge is a main cause of insulation degradation and insulation failure of the switch cabinet, so that the detection of the partial discharge of the high-voltage switch cabinet in operation can provide an important reference basis for the state maintenance of the switch cabinet, the sudden accident of the switch cabinet is avoided, the power supply quality is improved, and the traditional detection method of the partial discharge of the high-voltage switch cabinet requires staff to carry corresponding detection instruments to detect different parts of the switch cabinet regularly, so that the workload is high, the efficiency is low, the detection quality is scattered, the detection omission and false detection are easily caused, and meanwhile, the personal safety problem also exists; therefore, it is necessary to provide a high-voltage switch cabinet partial discharge auxiliary detection device which has reasonable structure, remote control, improved detection efficiency and quality, rapid and accurate positioning and strong anti-interference capability.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the auxiliary detection device for the partial discharge of the high-voltage switch cabinet, which has the advantages of reasonable structure, remote control, improvement of detection efficiency and quality, quick and accurate positioning and strong anti-interference capability.
The purpose of the invention is realized in the following way: a high-voltage switch cabinet partial discharge auxiliary detection device comprises a switch cabinet and a detection device, wherein a partition plate is arranged above the switch cabinet, extrusion springs are arranged below the inner sides of the left side and the right side of the partition plate, a mounting frame is arranged above the partition plate, mounting pins are arranged below the inner sides of the left side and the right side of the mounting frame, a mounting plate is arranged in the middle of the upper side of the mounting frame, a plurality of compression springs are uniformly arranged between the mounting plate and the partition plate, the mounting frame is fixedly connected with the switch cabinet through the mounting pins, the detection device is arranged above the mounting plate, a first ultrasonic sensor is arranged in the middle of the upper side of the inner side of the switch cabinet, a second ultrasonic sensor is arranged in the middle of the left side of the inner side of the switch cabinet, a TEV sensor is arranged in the middle of the right side of the inner side of the switch cabinet, the utility model discloses a UHF sensor, including a switch room, a plurality of busbar connector, busbar connector below evenly be provided with a plurality of busbar connector, busbar connector below all be provided with the busbar, busbar below all be provided with the circuit breaker, circuit breaker below left side be provided with current transformer, circuit breaker below right side be provided with voltage transformer, current transformer below be provided with the winding displacement board, winding displacement board the preceding top be provided with the winding displacement, winding displacement right side be provided with the cable, cable top be provided with acousto-optic sensor, cable below be provided with electric signal sensor, the inside back middle part below of switch room be provided with the UHF sensor, UHF sensor below middle part be provided with first winding displacement board, UHF sensor inside middle part be provided with first magnetic attraction piece, a first collector is arranged below the UHF sensor; the switch cabinet is characterized in that an HFCT sensor is arranged above the middle part of the rear inside of the switch cabinet, second line plates are arranged at four corners of the HFCT sensor, a second magnetic block is arranged in the middle inside of the HFCT sensor, and a second collector is arranged above the HFCT sensor.
The detection device comprises a top plate, a detection box, a wireless receiving and transmitting controller, a first conditioning device, a second conditioning device, a first wire hole, a second wire hole, a fixed plate, a detection amplifier, a filter amplifier, a fixed bolt, a connecting socket, a bottom plate, a first insulating rod, a first A/D converter, a first signal processor, a first signal amplifier, an acoustic-electric converter, a third wire tube, a processor, a fourth wire tube, a second signal amplifier, an electric signal converter, a multichannel signal acquisition instrument, a second A/D converter, a second signal processor and a second insulating rod, wherein the top of the detection device is provided with the top plate, the lower part of the top plate is provided with the detection box, the middle part of the front of the detection box is provided with the wireless receiving and transmitting controller, the middle part of the left side of the detection box is provided with the first conditioning device, the middle part of the right side of the detection box is provided with the second conditioning device, the rear part of the detection box is provided with the first wire hole, the front of the two wire holes are respectively connected with the two fixed plates, the front side of the detection box is provided with the filter amplifier, the front of the two fixed plates are respectively provided with the filter amplifier, the front side of the filter amplifier is provided with the fixed plate is provided with the filter amplifier, the front part of the filter amplifier is provided with the fixed on the front side of the filter box, the first A/D converter left side be provided with first signal processor, first signal processor be connected with first conditioning device, first A/D converter top be provided with the sound electric converter, sound electric converter top be provided with first signal amplifier, first signal amplifier top be provided with the third spool, third spool right side be provided with the treater, the treater below be provided with multichannel signal acquisition appearance, the treater right side be provided with the fourth spool, fourth spool below be provided with second signal amplifier, second signal amplifier below be provided with the electric signal converter, electric signal converter below be provided with the second A/D converter, second A/D converter below be provided with the second insulator spindle, second A/D converter right side be provided with the second signal processor, second signal processor and second conditioning device connect.
A high tension switchgear partial discharge auxiliary detection device, it still includes first conditioning device, first conditioning device include first spool, first line pipe clamp, first signal conditioner, first connecting plate and first connecting bolt, first conditioning device left side be provided with first spool, first line pipe clamp right side be provided with first line pipe clamp, first line pipe clamp right side be provided with first signal conditioner, first signal conditioner be connected with first signal processor electricity, first signal conditioner right side be provided with first connecting plate, first connecting plate upper and lower both sides all be provided with first connecting bolt, first connecting plate pass through first connecting bolt and detection case fixed connection.
The utility model provides a high tension switchgear partial discharge auxiliary detection device, it still includes second conditioning device, second conditioning device include second spool, second line pipe clamp, second signal conditioner, second connecting plate and second connecting bolt, second conditioning device right side be provided with the second spool, second spool left side be provided with the second line pipe clamp, second line pipe clamp left side be provided with the second signal conditioner, second signal conditioner and second signal processor electricity be connected, second signal conditioner left side be provided with the second connecting plate, second connecting plate upper and lower both sides all be provided with the second connecting bolt, the second connecting plate pass through second connecting bolt and detection case fixed connection.
The first ultrasonic sensor and the second ultrasonic sensor are electrically connected with the first signal conditioner through wires passing through the first spool.
The TEV sensor is electrically connected with the second signal conditioner through a wire passing through the second wire tube.
The UHF sensor is electrically connected with the first collector, the HFCT sensor is electrically connected with the second collector, and the first collector and the second collector are electrically connected with the connecting socket through wires.
The acousto-optic sensor is electrically connected with the acousto-optic converter through a wire penetrating through the first wire hole, and the electric signal sensor is electrically connected with the electric signal converter through a wire penetrating through the second wire hole.
The baffle, mounting bracket all be "U" type structure, third spool and fourth spool all be "L" type structure.
The invention has the beneficial effects that: the invention adopts a first ultrasonic sensor, a second ultrasonic sensor, a TEV sensor, an acousto-optic sensor, an electric signal sensor, a UHF sensor and an HFCT sensor, wherein the first ultrasonic sensor and the second ultrasonic sensor are used for measuring ultrasonic signals generated by partial discharge of a switch cabinet; the TEV sensor is used for measuring a transient voltage to ground (TEV) signal generated by partial discharge induction of the switch cabinet and rapidly and accurately positioning the partial discharge position; the acousto-optic sensor is used for measuring partial discharge of the cable joint; the electric signal sensor is used for measuring electromagnetic wave signals generated by partial discharge of the cable joint; the UHF sensor is used for measuring an ultrahigh frequency signal generated by partial discharge; the HFCT sensor is used for measuring partial discharge signals passing through a grounding wire of the equipment; the switch cabinet is subjected to omnibearing and comprehensive partial discharge detection through various sensors, so that the detection efficiency and quality are improved, and the anti-interference capability is greatly improved; the invention adopts a detection device, a first collector and a second collector, wherein the first collector collects partial discharge detection data of the UHF sensor, the second collector collects partial discharge detection data of the HFCT sensor, and then the partial discharge detection data is sent into a filter amplifier and a detection amplifier for processing through a connecting socket, and then is sent into a processor through a multichannel signal collector; the detection data of the first ultrasonic sensor, the second ultrasonic sensor and the TEV sensor are respectively sent into a corresponding first signal processor, a corresponding first A/D converter, a corresponding second signal processor and a corresponding second A/D converter through a first signal conditioner and a corresponding second signal processor, and then are sent into the processor through a multichannel signal acquisition instrument; the detection data of the acousto-optic sensor and the electric signal sensor are respectively sent to the first signal amplifier and the second signal amplifier after passing through the acousto-electric converter and the electric signal converter, and finally sent to the processor, and all the data are transmitted to the background control center after being processed by the processor through the wireless transceiver controller; the UHF sensor and the HFCT sensor are respectively internally provided with the first magnetic block and the second magnetic block, and are not fixedly installed by using an opening, so that the UHF sensor is very simple to assemble and disassemble and convenient to use; the wireless transceiver controller is connected with the background control center through the WiFi local area network, can remotely receive the background instruction to start the detection flow, and sends the measurement data in real time for background analysis and storage, so that the local discharge test efficiency and the detection quality of the switch cabinet are greatly improved, and personal accidents caused by electric shock in live detection are avoided; the invention has the advantages of reasonable structure, remote control, improved detection efficiency and quality, quick and accurate positioning and strong anti-interference capability.
Drawings
Fig. 1 is a front view of the whole structure of the high-voltage switch cabinet partial discharge auxiliary detection device in the use state.
Fig. 2 is a schematic view of a portion of the structure of fig. 1.
Fig. 3 is a schematic structural view of a partition board and a mounting frame of the auxiliary detection device for partial discharge of the high-voltage switch cabinet.
Fig. 4 is a front view of the detecting device of the partial discharge auxiliary detecting device of the high-voltage switch cabinet.
Fig. 5 is a schematic structural diagram of a first conditioning device of the auxiliary detection device for partial discharge of a high-voltage switch cabinet.
Fig. 6 is a schematic structural diagram of a second conditioning device of the auxiliary detection device for partial discharge of a high-voltage switch cabinet.
Fig. 7 is a rear view of fig. 5.
Fig. 8 is a schematic view of the internal structure of fig. 5.
Fig. 9 is a front view of the structure of a switch cabinet of the high-voltage switch cabinet partial discharge auxiliary detection device.
Fig. 10 is a schematic view of a part of the internal structure of fig. 9.
Fig. 11 is a rear view of fig. 10.
Fig. 12 is a schematic structural diagram of a UHF sensor of the auxiliary detection device for partial discharge of a high-voltage switch cabinet according to the present invention.
Fig. 13 is a schematic diagram of a part of the internal structure of a UHF sensor of the auxiliary detection device for partial discharge of a high-voltage switch cabinet according to the present invention.
Fig. 14 is a schematic structural diagram of an HFCT sensor of a partial discharge auxiliary detection device for a high voltage switchgear according to the present invention.
Fig. 15 is a schematic diagram of a part of an internal structure of an HFCT sensor of a partial discharge auxiliary detection device for a high voltage switchgear according to the present invention.
In the figure: 1. switch cabinet 2, partition plate 3, mounting bracket 4, detection device 5, pressing spring 6, compression spring 7, mounting plate 8, mounting stud 9, top plate 10, detection box 11, wireless transceiver controller 12, first conditioner 13, second conditioner 14, first conduit 15, first conduit clamp 16, first signal conditioner 17, first connection plate 18, first connection bolt 19, second conduit 20, second conduit clamp 21, second signal conditioner 22, second connection plate 23, second connection bolt 24, first wire hole 25, second wire hole 26, fixing plate 27, detection amplifier 28, filter amplifier 29, fixing bolt 30, connection socket 31, bottom plate 32, first insulation rod 33, first a/D converter 34, first signal processor 35, second insulation rod 33, first signal processor 34, second signal processor first signal amplifier 36, acoustoelectric converter 37, third wire tube 38, processor 39, fourth wire tube 40, second signal amplifier 41, electric signal converter 42, multichannel signal collector 43, second a/D converter 44, second signal processor 45, second insulating rod 46, first ultrasonic sensor 47, second ultrasonic sensor 48, TEV sensor 49, switching room 50, bus connector 51, bus 52, circuit breaker 53, current transformer 54, voltage transformer 55, wire harness 56, wire harness 57, cable 58, acousto-optic sensor 59, electric signal sensor 60, UHF sensor 61, first collector 62, HFCT sensor 63, second collector 64, first wire harness 65, first magnetic block 66, second wire harness 67, and the second magnetic attraction block.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in figures 1-15, a high-voltage switch cabinet partial discharge auxiliary detection device comprises a switch cabinet 1 and a detection device 4, wherein a partition board 2 is arranged above the switch cabinet 1, extrusion springs 5 are arranged below the inner sides of the left side and the right side of the partition board 2, a mounting frame 3 is arranged above the partition board 2, mounting pins 8 are arranged below the inner sides of the left side and the right side of the mounting frame 3, a mounting plate 7 is arranged in the middle of the upper side of the mounting frame 3, a plurality of compression springs 6 are uniformly arranged between the mounting plate 7 and the partition board 2, the mounting frame 3 is fixedly connected with the switch cabinet 1 through the mounting pins 8, the detection device 4 is arranged above the mounting plate 7, a first ultrasonic sensor 46 is arranged in the middle of the upper part of the interior of the switch cabinet 1, a second ultrasonic sensor 47 is arranged in the middle of the left side of the interior of the switch cabinet 1, the middle part of the right side inside the switch cabinet 1 is provided with a TEV sensor 48, a switch chamber 49 is arranged below the first ultrasonic sensor 46, a plurality of bus connectors 50 are uniformly arranged below the switch chamber 49, bus 51 are arranged below the bus connectors 50, a circuit breaker 52 is arranged below the bus 51, a current transformer 53 is arranged on the left side below the circuit breaker 52, a voltage transformer 54 is arranged on the right side below the circuit breaker 52, a wire bent plate 55 is arranged below the current transformer 53, a wire bent frame 56 is arranged above the front of the wire bent plate 55, a cable 57 is arranged on the right side of the wire bent frame 56, an acoustic sensor 58 is arranged above the cable 57, an electric signal sensor 59 is arranged below the cable 57, a UHF sensor 60 is arranged below the middle part inside the switch cabinet 1, a first wire board 64 is arranged in the middle of the lower part of the UHF sensor 60, a first magnetic block 65 is arranged in the middle of the inner part of the UHF sensor 60, and a first collector 61 is arranged below the UHF sensor 60; the switch cabinet 1 inside rear middle part top be provided with the HFCT sensor 62, HFCT sensor 62 four corners all be provided with second wiring board 66, HFCT sensor 62 inside middle part be provided with the second magnetism and inhale piece 67, HFCT sensor 62 top be provided with second collector 63.
As shown in fig. 4 and 7-8, the auxiliary detecting device for partial discharge of a high-voltage switch cabinet further comprises a detecting device 4, wherein the detecting device 4 comprises a top plate 9, a detecting box 10, a wireless transceiver controller 11, a first conditioning device 12, a second conditioning device 13, a first wire hole 24, a second wire hole 25, a fixed plate 26, a detection amplifier 27, a filter amplifier 28, a fixed bolt 29, a connecting socket 30, a bottom plate 31, a first insulating rod 32, a first a/D converter 33, a first signal processor 34, a first signal amplifier 35, an acousto-electric converter 36, a third wire tube 37, a processor 38, a fourth wire tube 39, a second signal amplifier 40, an electric signal converter 41, a multichannel signal collector 42, a second a/D converter 43, a second signal processor 44 and a second insulating rod 45, the top plate 9 is arranged above the detecting device 4, the testing device is characterized in that a testing box 10 is arranged below the top plate 9, a wireless receiving and transmitting controller 11 is arranged in the middle of the front of the testing box 10, a first conditioning device 12 is arranged in the middle of the left side of the testing box 10, a second conditioning device 13 is arranged in the middle of the right side of the testing box 10, a first wire hole 24 is formed in the left side of the upper portion of the rear of the testing box 10, a second wire hole 25 is formed in the right side of the first wire hole 24, a fixing plate 26 is arranged in the middle of the rear of the testing box 10, a detection amplifier 27 is arranged in the front of the fixing plate 26, a filter amplifier 28 is arranged in the middle of the front of the detection amplifier 27, a connecting socket 30 is arranged in the middle of the front of the filter amplifier 28, fixing bolts 29 are arranged on the left side and the right side of the filter amplifier 28, and the filter amplifier 28, the detector amplifier 27 is fixedly connected with the fixing plate 26 through a fixing bolt 29, a bottom plate 31 is arranged below the inside of the detection box 10, a first insulation rod 32 is arranged above the left side of the bottom plate 31, a first A/D converter 33 is arranged above the first insulation rod 32, a first signal processor 34 is arranged on the left side of the first A/D converter 33, the first signal processor 34 is connected with the first conditioning device 12, an acoustic-electric converter 36 is arranged above the first A/D converter 33, a third wire tube 37 is arranged above the first signal amplifier 35, a processor 38 is arranged on the right side of the third wire tube 37, a multichannel signal acquisition instrument 42 is arranged below the processor 38, a second signal amplifier 40 is arranged below the second wire tube 39, a second signal amplifier 40 is arranged below the second wire tube, a second signal converter 45 is arranged below the second wire tube 37, and a second signal processor 43 is arranged below the second wire tube 43, and a second signal processor 44 is arranged below the second wire tube 43.
As shown in fig. 5, the auxiliary detecting device for partial discharge of a high-voltage switch cabinet further comprises a first conditioning device 12, the first conditioning device 12 comprises a first wire pipe 14, a first wire pipe clamp 15, a first signal conditioner 16, a first connecting plate 17 and a first connecting bolt 18, the first wire pipe 14 is arranged on the left side of the first conditioning device 12, the first wire pipe clamp 15 is arranged on the right side of the first wire pipe clamp 14, the first signal conditioner 16 is arranged on the right side of the first wire pipe clamp 15, the first signal conditioner 16 is electrically connected with the first signal processor 34, the first connecting plate 17 is arranged on the right side of the first signal conditioner 16, the first connecting bolts 18 are arranged on the upper side and the lower side of the first connecting plate 17, and the first connecting plate 17 is fixedly connected with the detecting box 10 through the first connecting bolts 18.
As shown in fig. 6, the auxiliary detection device for partial discharge of a high-voltage switch cabinet further comprises a second conditioning device 13, the second conditioning device 13 comprises a second wire pipe 19, a second wire pipe clamp 20, a second signal conditioner 21, a second connecting plate 22 and a second connecting bolt 23, the second wire pipe 19 is arranged on the right side of the second conditioning device 13, the second wire pipe clamp 20 is arranged on the left side of the second wire pipe 19, the second signal conditioner 21 is arranged on the left side of the second wire pipe clamp 20, the second signal conditioner 21 is electrically connected with the second signal processor 44, the second connecting plate 22 is arranged on the left side of the second signal conditioner 21, the second connecting bolts 23 are arranged on the upper side and the lower side of the second connecting plate 22, and the second connecting plate 22 is fixedly connected with the detection box 10 through the second connecting bolts 23.
The invention adopts a first ultrasonic sensor 46, a second ultrasonic sensor 47, a TEV sensor 48, an acousto-optic sensor 58, an electric signal sensor 59, a UHF sensor 60 and an HFCT sensor 62, wherein the first ultrasonic sensor 46 and the second ultrasonic sensor 47 are used for measuring ultrasonic signals generated by partial discharge of a switch cabinet 1; the TEV sensor 48 is used for measuring a transient voltage to ground (TEV) signal generated by partial discharge induction of the switch cabinet 1 and rapidly and accurately positioning the partial discharge position; the acousto-optic sensor 58 is used for measuring partial discharge of the cable 57 joint; the electric signal sensor 59 is used for measuring electromagnetic wave signals generated by partial discharge of the connector of the cable 57; the UHF sensor 60 is used for measuring the ultrahigh frequency signal generated by partial discharge; the HFCT sensor 62 is used to measure partial discharge signals passing in the device ground; the switch cabinet 1 is subjected to omnibearing and comprehensive partial discharge detection through various sensors, so that the detection efficiency and quality are improved, and the anti-interference capability is greatly improved; the invention adopts a detection device 4, a first collector 61 and a second collector 63, wherein the first collector 61 collects partial discharge detection data of the UHF sensor 60, the second collector 63 collects partial discharge detection data of the HFCT sensor 62, and then the partial discharge detection data is sent to a filter amplifier 28 and a detection amplifier 27 for processing through a connection socket 30, and then is sent to a processor 38 through a multichannel signal collector 42; the detection data of the first ultrasonic sensor 46, the second ultrasonic sensor 47 and the TEV sensor 48 are respectively sent to the corresponding first signal processor 34, the first A/D converter 33, the second signal processor 44 and the second A/D converter 43 through the first signal conditioner 16 and the second signal conditioner 21, and then sent to the processor 38 through the multichannel signal acquisition instrument 42; the detection data of the acousto-optic sensor 58 and the electric signal sensor 59 are respectively sent to the first signal amplifier 35 and the second signal amplifier 40 after passing through the acousto-electric converter 36 and the electric signal converter 41, finally sent to the processor 38, and all the data are transmitted to the background control center through the wireless transceiver controller 11 after being processed by the processor 38; the invention adopts the first magnetic block 65 and the second magnetic block 67, the first magnetic block 65 and the second magnetic block 67 are respectively arranged in the UHF sensor 60 and the HFCT sensor 62, and the invention does not need to be fixedly installed by an opening, and has very simple disassembly and assembly and convenient use; the wireless transceiver controller 11 is connected with the background control center through the WiFi local area network, can remotely receive a background instruction to start a detection flow, and sends measurement data in real time for background analysis and storage, so that the partial discharge test efficiency and the detection quality of the switch cabinet 1 are greatly improved, and personal accidents caused by electric shock in live detection are avoided; the invention has the advantages of reasonable structure, remote control, improved detection efficiency and quality, quick and accurate positioning and strong anti-interference capability.
Example 2
As shown in figures 1-15, a high-voltage switch cabinet partial discharge auxiliary detection device comprises a switch cabinet 1 and a detection device 4, wherein a partition board 2 is arranged above the switch cabinet 1, extrusion springs 5 are arranged below the inner sides of the left side and the right side of the partition board 2, a mounting frame 3 is arranged above the partition board 2, mounting pins 8 are arranged below the inner sides of the left side and the right side of the mounting frame 3, a mounting plate 7 is arranged in the middle of the upper side of the mounting frame 3, a plurality of compression springs 6 are uniformly arranged between the mounting plate 7 and the partition board 2, the mounting frame 3 is fixedly connected with the switch cabinet 1 through the mounting pins 8, the detection device 4 is arranged above the mounting plate 7, a first ultrasonic sensor 46 is arranged in the middle of the upper part of the interior of the switch cabinet 1, a second ultrasonic sensor 47 is arranged in the middle of the left side of the interior of the switch cabinet 1, the middle part of the right side inside the switch cabinet 1 is provided with a TEV sensor 48, a switch chamber 49 is arranged below the first ultrasonic sensor 46, a plurality of bus connectors 50 are uniformly arranged below the switch chamber 49, bus 51 are arranged below the bus connectors 50, a circuit breaker 52 is arranged below the bus 51, a current transformer 53 is arranged on the left side below the circuit breaker 52, a voltage transformer 54 is arranged on the right side below the circuit breaker 52, a wire bent plate 55 is arranged below the current transformer 53, a wire bent frame 56 is arranged above the front of the wire bent plate 55, a cable 57 is arranged on the right side of the wire bent frame 56, an acoustic sensor 58 is arranged above the cable 57, an electric signal sensor 59 is arranged below the cable 57, a UHF sensor 60 is arranged below the middle part inside the switch cabinet 1, a first wire board 64 is arranged in the middle of the lower part of the UHF sensor 60, a first magnetic block 65 is arranged in the middle of the inner part of the UHF sensor 60, and a first collector 61 is arranged below the UHF sensor 60; the switch cabinet 1 inside rear middle part top be provided with the HFCT sensor 62, HFCT sensor 62 four corners all be provided with second wiring board 66, HFCT sensor 62 inside middle part be provided with the second magnetism and inhale piece 67, HFCT sensor 62 top be provided with second collector 63.
As shown in fig. 4 and 7-8, the auxiliary detecting device for partial discharge of a high-voltage switch cabinet further comprises a detecting device 4, wherein the detecting device 4 comprises a top plate 9, a detecting box 10, a wireless transceiver controller 11, a first conditioning device 12, a second conditioning device 13, a first wire hole 24, a second wire hole 25, a fixed plate 26, a detection amplifier 27, a filter amplifier 28, a fixed bolt 29, a connecting socket 30, a bottom plate 31, a first insulating rod 32, a first a/D converter 33, a first signal processor 34, a first signal amplifier 35, an acousto-electric converter 36, a third wire tube 37, a processor 38, a fourth wire tube 39, a second signal amplifier 40, an electric signal converter 41, a multichannel signal collector 42, a second a/D converter 43, a second signal processor 44 and a second insulating rod 45, the top plate 9 is arranged above the detecting device 4, the testing device is characterized in that a testing box 10 is arranged below the top plate 9, a wireless receiving and transmitting controller 11 is arranged in the middle of the front of the testing box 10, a first conditioning device 12 is arranged in the middle of the left side of the testing box 10, a second conditioning device 13 is arranged in the middle of the right side of the testing box 10, a first wire hole 24 is formed in the left side of the upper portion of the rear of the testing box 10, a second wire hole 25 is formed in the right side of the first wire hole 24, a fixing plate 26 is arranged in the middle of the rear of the testing box 10, a detection amplifier 27 is arranged in the front of the fixing plate 26, a filter amplifier 28 is arranged in the middle of the front of the detection amplifier 27, a connecting socket 30 is arranged in the middle of the front of the filter amplifier 28, fixing bolts 29 are arranged on the left side and the right side of the filter amplifier 28, and the filter amplifier 28, the detector amplifier 27 is fixedly connected with the fixing plate 26 through a fixing bolt 29, a bottom plate 31 is arranged below the inside of the detection box 10, a first insulation rod 32 is arranged above the left side of the bottom plate 31, a first A/D converter 33 is arranged above the first insulation rod 32, a first signal processor 34 is arranged on the left side of the first A/D converter 33, the first signal processor 34 is connected with the first conditioning device 12, an acoustic-electric converter 36 is arranged above the first A/D converter 33, a third wire tube 37 is arranged above the first signal amplifier 35, a processor 38 is arranged on the right side of the third wire tube 37, a multichannel signal acquisition instrument 42 is arranged below the processor 38, a second signal amplifier 40 is arranged below the second wire tube 39, a second signal amplifier 40 is arranged below the second wire tube, a second signal converter 45 is arranged below the second wire tube 37, and a second signal processor 43 is arranged below the second wire tube 43, and a second signal processor 44 is arranged below the second wire tube 43.
As shown in fig. 5, the auxiliary detecting device for partial discharge of a high-voltage switch cabinet further comprises a first conditioning device 12, the first conditioning device 12 comprises a first wire pipe 14, a first wire pipe clamp 15, a first signal conditioner 16, a first connecting plate 17 and a first connecting bolt 18, the first wire pipe 14 is arranged on the left side of the first conditioning device 12, the first wire pipe clamp 15 is arranged on the right side of the first wire pipe clamp 14, the first signal conditioner 16 is arranged on the right side of the first wire pipe clamp 15, the first signal conditioner 16 is electrically connected with the first signal processor 34, the first connecting plate 17 is arranged on the right side of the first signal conditioner 16, the first connecting bolts 18 are arranged on the upper side and the lower side of the first connecting plate 17, and the first connecting plate 17 is fixedly connected with the detecting box 10 through the first connecting bolts 18.
As shown in fig. 6, the auxiliary detection device for partial discharge of a high-voltage switch cabinet further comprises a second conditioning device 13, the second conditioning device 13 comprises a second wire pipe 19, a second wire pipe clamp 20, a second signal conditioner 21, a second connecting plate 22 and a second connecting bolt 23, the second wire pipe 19 is arranged on the right side of the second conditioning device 13, the second wire pipe clamp 20 is arranged on the left side of the second wire pipe 19, the second signal conditioner 21 is arranged on the left side of the second wire pipe clamp 20, the second signal conditioner 21 is electrically connected with the second signal processor 44, the second connecting plate 22 is arranged on the left side of the second signal conditioner 21, the second connecting bolts 23 are arranged on the upper side and the lower side of the second connecting plate 22, and the second connecting plate 22 is fixedly connected with the detection box 10 through the second connecting bolts 23.
For better effect, the first ultrasonic sensor 46 and the second ultrasonic sensor 47 are electrically connected with the first signal conditioner 16 through wires passing through the first conduit 14.
For better effect, the TEV sensor 48 is electrically connected to the second signal conditioner 21 by wires passing through the second conduit 19.
For better effect, the UHF sensor 60 is electrically connected to the first collector 61, the HFCT sensor 62 is electrically connected to the second collector 63, and the first collector 61 and the second collector 63 are electrically connected to the connection socket 30 through wires.
For better effect, the acousto-optic sensor 58 is electrically connected to the acousto-optic transducer 36 through the first wire hole 24 by a wire, and the electric signal sensor 59 is electrically connected to the electric signal transducer 41 through the second wire hole 25 by a wire.
For better effect, the partition board 2 and the mounting frame 3 are of inverted U-shaped structures, and the third wire pipe 37 and the fourth wire pipe 39 are of L-shaped structures.
The invention adopts a first ultrasonic sensor 46, a second ultrasonic sensor 47, a TEV sensor 48, an acousto-optic sensor 58, an electric signal sensor 59, a UHF sensor 60 and an HFCT sensor 62, wherein the first ultrasonic sensor 46 and the second ultrasonic sensor 47 are used for measuring ultrasonic signals generated by partial discharge of a switch cabinet 1; the TEV sensor 48 is used for measuring a transient voltage to ground (TEV) signal generated by partial discharge induction of the switch cabinet 1 and rapidly and accurately positioning the partial discharge position; the acousto-optic sensor 58 is used for measuring partial discharge of the cable 57 joint; the electric signal sensor 59 is used for measuring electromagnetic wave signals generated by partial discharge of the connector of the cable 57; the UHF sensor 60 is used for measuring the ultrahigh frequency signal generated by partial discharge; the HFCT sensor 62 is used to measure partial discharge signals passing in the device ground; the switch cabinet 1 is subjected to omnibearing and comprehensive partial discharge detection through various sensors, so that the detection efficiency and quality are improved, and the anti-interference capability is greatly improved; the invention adopts a detection device 4, a first collector 61 and a second collector 63, wherein the first collector 61 collects partial discharge detection data of the UHF sensor 60, the second collector 63 collects partial discharge detection data of the HFCT sensor 62, and then the partial discharge detection data is sent to a filter amplifier 28 and a detection amplifier 27 for processing through a connection socket 30, and then is sent to a processor 38 through a multichannel signal collector 42; the detection data of the first ultrasonic sensor 46, the second ultrasonic sensor 47 and the TEV sensor 48 are respectively sent to the corresponding first signal processor 34, the first A/D converter 33, the second signal processor 44 and the second A/D converter 43 through the first signal conditioner 16 and the second signal conditioner 21, and then sent to the processor 38 through the multichannel signal acquisition instrument 42; the detection data of the acousto-optic sensor 58 and the electric signal sensor 59 are respectively sent to the first signal amplifier 35 and the second signal amplifier 40 after passing through the acousto-electric converter 36 and the electric signal converter 41, finally sent to the processor 38, and all the data are transmitted to the background control center through the wireless transceiver controller 11 after being processed by the processor 38; the invention adopts the first magnetic block 65 and the second magnetic block 67, the first magnetic block 65 and the second magnetic block 67 are respectively arranged in the UHF sensor 60 and the HFCT sensor 62, and the invention does not need to be fixedly installed by an opening, and has very simple disassembly and assembly and convenient use; the wireless transceiver controller 11 is connected with the background control center through the WiFi local area network, can remotely receive a background instruction to start a detection flow, and sends measurement data in real time for background analysis and storage, so that the partial discharge test efficiency and the detection quality of the switch cabinet 1 are greatly improved, and personal accidents caused by electric shock in live detection are avoided; the invention has the advantages of reasonable structure, remote control, improved detection efficiency and quality, quick and accurate positioning and strong anti-interference capability.
Claims (7)
1. The utility model provides a high tension switchgear partial discharge auxiliary detection device, it includes cubical switchboard and detection device, its characterized in that: the UHF switch cabinet comprises a switch cabinet, and is characterized in that a partition plate is arranged above the switch cabinet, extrusion springs are arranged below the inner sides of the left side and the right side of the partition plate, a mounting bracket is arranged above the partition plate, mounting pins are arranged below the inner sides of the left side and the right side of the mounting bracket, a mounting plate is arranged in the middle of the upper side of the mounting bracket, a plurality of compression springs are uniformly arranged between the mounting plate and the partition plate, the mounting bracket is fixedly connected with the switch cabinet through the mounting pins, a detection device is arranged above the mounting plate, a first ultrasonic sensor is arranged in the middle of the upper side of the switch cabinet, a TEV sensor is arranged in the middle of the right side of the switch cabinet, a switch chamber is arranged below the first ultrasonic sensor, a plurality of bus connectors are uniformly arranged below the switch chamber, a circuit breaker is arranged below the bus, a current transformer is arranged on the left side of the circuit breaker, a detection device is arranged on the right side of the mounting plate, a circuit transformer is arranged below the UHF sensor, a wire sensor is arranged below the UHF sensor is arranged on the middle of the UHF sensor, a wire sensor is arranged on the middle of the UHF sensor, and a wire sensor is arranged on the middle of the UHF sensor is arranged below the UHF sensor; the upper part of the middle part of the rear inside of the switch cabinet is provided with an HFCT sensor, the four corners of the HFCT sensor are provided with second line plates, the middle part inside the HFCT sensor is provided with a second magnetic attraction block, and the upper part of the HFCT sensor is provided with a second collector;
The detection device comprises a top plate, a detection box, a wireless transceiver controller, a first conditioning device, a second conditioning device, a first wire hole, a second wire hole, a fixed plate, a detection amplifier, a filter amplifier, a fixed bolt, a connecting socket, a bottom plate, a first insulating rod, a first A/D converter, a first signal processor, a first signal amplifier, an acoustic-electric converter, a third wire tube, a processor, a fourth wire tube, a second signal amplifier, an electric signal converter, a multichannel signal acquisition instrument, a second A/D converter, a second signal processor and a second insulating rod, wherein the top of the detection device is provided with the top plate, the detection box is arranged below the top plate, the middle part of the front of the detection box is provided with the wireless transceiver controller, the middle part of the left side of the detection box is provided with the first conditioning device, the middle part of the right side of the detection box is provided with the second conditioning device, the left side of the rear of the detection box is provided with the first wire hole, the right side of the first wire tube is provided with the second signal amplifier, the electric signal converter is provided with the second wire hole, the front of the detection box is provided with the filter amplifier, the front of the two fixed plate is connected with the filter amplifier, the front of the filter amplifier is arranged in the middle part of the detection box is provided with the fixed plate, the front of the filter amplifier is connected with the fixed plate, the filter amplifier is arranged in the middle part of the front of the detection box is arranged in the front of the detection box, the filter box is provided with the front of the filter amplifier, the filter amplifier is connected with the filter amplifier in the front of the filter amplifier, the first signal processor is connected with the first conditioning device, the sound-electricity converter is arranged above the first A/D converter, the first signal amplifier is arranged above the sound-electricity converter, the third wire tube is arranged above the first signal amplifier, the processor is arranged on the right side of the third wire tube, the multichannel signal acquisition instrument is arranged below the processor, the fourth wire tube is arranged on the right side of the processor, the second signal amplifier is arranged below the fourth wire tube, the electric signal converter is arranged below the second signal amplifier, the second A/D converter is arranged below the electric signal converter, the second insulating rod is arranged below the second A/D converter, the second signal processor is arranged on the right side of the second A/D converter, and the second signal processor is connected with the second conditioning device;
The first conditioning device comprises a first wire tube, a first wire tube clamp, a first signal conditioner, a first connecting plate and a first connecting bolt, wherein the first wire tube is arranged on the left side of the first conditioning device, the first wire tube clamp is arranged on the right side of the first wire tube clamp, the first signal conditioner is arranged on the right side of the first wire tube clamp and is electrically connected with the first signal processor, the first connecting plate is arranged on the right side of the first signal conditioner, the first connecting bolts are arranged on the upper side and the lower side of the first connecting plate, and the first connecting plate is fixedly connected with the detection box through the first connecting bolts.
2. The auxiliary detection device for partial discharge of a high-voltage switch cabinet according to claim 1, further comprising a second conditioning device, wherein: the second conditioning device comprises a second wire tube, a second wire tube clamp, a second signal conditioner, a second connecting plate and a second connecting bolt, wherein the second wire tube is arranged on the right side of the second conditioning device, the second wire tube clamp is arranged on the left side of the second wire tube clamp, the second signal conditioner is electrically connected with the second signal processor, the second connecting plate is arranged on the left side of the second signal conditioner, the second connecting bolts are arranged on the upper side and the lower side of the second connecting plate, and the second connecting plate is fixedly connected with the detection box through the second connecting bolts.
3. The high-voltage switchgear partial discharge auxiliary detection device according to claim 1, wherein: the first ultrasonic sensor and the second ultrasonic sensor are electrically connected with the first signal conditioner through wires passing through the first spool.
4. A high-voltage switchgear partial discharge auxiliary detection device as claimed in claim 1 or 2, wherein: the TEV sensor is electrically connected with the second signal conditioner through a wire passing through the second wire tube.
5. The high-voltage switchgear partial discharge auxiliary detection device according to claim 1, wherein: the UHF sensor is electrically connected with the first collector, the HFCT sensor is electrically connected with the second collector, and the first collector and the second collector are electrically connected with the connecting socket through wires.
6. The high-voltage switchgear partial discharge auxiliary detection device according to claim 1, wherein: the acousto-optic sensor is electrically connected with the acousto-optic converter through a wire penetrating through the first wire hole, and the electric signal sensor is electrically connected with the electric signal converter through a wire penetrating through the second wire hole.
7. The high-voltage switchgear partial discharge auxiliary detection device according to claim 1, wherein: the baffle, mounting bracket all be "U" type structure, third spool and fourth spool all be "L" type structure.
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| CN102749557A (en) * | 2012-06-07 | 2012-10-24 | 国网电力科学研究院武汉南瑞有限责任公司 | Partial discharging detecting device of switch cabinet |
| CN104808123A (en) * | 2015-04-30 | 2015-07-29 | 国家电网公司 | Switchgear partial discharge detecting system |
| CN106707128A (en) * | 2017-03-16 | 2017-05-24 | 国家电网公司 | Acoustoelectric associated local cable discharge locating device and method |
| CN207096378U (en) * | 2017-04-25 | 2018-03-13 | 李全 | A kind of acoustoelectric combined partial discharge detecting system of switch cubicle |
| 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 |
| CN108710074A (en) * | 2018-08-21 | 2018-10-26 | 广西电网有限责任公司电力科学研究院 | A kind of partial discharge of switchgear detecting system based on Radio Transmission Technology |
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2020
- 2020-09-21 CN CN202010994047.XA patent/CN112345892B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749557A (en) * | 2012-06-07 | 2012-10-24 | 国网电力科学研究院武汉南瑞有限责任公司 | Partial discharging detecting device of switch cabinet |
| CN104808123A (en) * | 2015-04-30 | 2015-07-29 | 国家电网公司 | Switchgear partial discharge detecting system |
| CN106707128A (en) * | 2017-03-16 | 2017-05-24 | 国家电网公司 | Acoustoelectric associated local cable discharge locating device and method |
| CN207096378U (en) * | 2017-04-25 | 2018-03-13 | 李全 | A kind of acoustoelectric combined partial discharge detecting system of switch cubicle |
| 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 |
| CN108710074A (en) * | 2018-08-21 | 2018-10-26 | 广西电网有限责任公司电力科学研究院 | A kind of partial discharge of switchgear detecting system based on Radio Transmission Technology |
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