CN205027864U - A electrode system for studying dry -type air -core reactor interturn insulation damage mechanism - Google Patents
A electrode system for studying dry -type air -core reactor interturn insulation damage mechanism Download PDFInfo
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- CN205027864U CN205027864U CN201520789470.0U CN201520789470U CN205027864U CN 205027864 U CN205027864 U CN 205027864U CN 201520789470 U CN201520789470 U CN 201520789470U CN 205027864 U CN205027864 U CN 205027864U
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Abstract
A electrode system for studying dry -type air -core reactor interturn insulation damage mechanism, it relates to an electrode system. The utility model discloses a solve the device that prior art does not carry out dry -type air -core reactor interturn insulation damage mechanism's experiment, lead to the fact the high problem of operation in -process fault rate. The utility model discloses a sample model and electrode assembly, the sample model includes that the wiring end at two middle part parallel connection both ends is the metal wire of Y font, electrode assembly includes high voltage electrode, telluric electricity field, two non -conductive support rod, two voltage -sharing electrodes and two blocks of electrode mounting boards, two blocks of electrode mounting boards pass through high voltage electrode and telluric electricity field establishs parallel connection, high voltage electrode and voltage -sharing electrode are connected respectively to two wiring ends of a metal wire of sample model, voltage -sharing electrode and telluric electricity field are connected respectively to two wiring ends of another metal wire. The utility model discloses the developing process that environment, temperature, partial discharge are ageing of dry -type air -core reactor interturn insulation material can be simulated and the characteristic is punctured.
Description
Technical field
The utility model relates to a kind of electrode system, is specifically related to the electrode system for studying dry-type air-core reactor turn-to-turn insulation damage mechanism, belongs to the technical field of dry-type air-core reactor experiment.
Background technology
Along with China is to the raising day by day of the quality of power supply and Power System Reliability, security requirement, the use of dry-type air-core reactor is more and more extensive, has higher requirement to the safe operation of air reactor simultaneously.But from nationwide ruuning situation, no matter be domestic or the dry-type air-core reactor of import is after putting into operation, abnormal and fault happens occasionally.Find out from statistics, the turn-to-turn insulation of winding punctures and accounts for more than 75% of total failare.Turn-to-turn insulation punctures can cause reactor generation turn-to-turn short circuit, finally causes reactor ignition.Direct economic loss up to hundreds thousand of unit, the remote effect that unexpected power-off causes to social sectors such as factory, office, residents and harm larger.Understand fully the failure cause of dry-type air-core reactor turn-to-turn insulation, the probability that reduction accident occurs is very necessary.
More to the analysis of dry-type air-core reactor turn-to-turn insulation fault type at present, less to the research of turn-to-turn insulation damage mechanism.Dry-type air-core reactor turn-to-turn predominating insulation in the market has three kinds, is that compound inslation, one deck mylar that three strata membrane of lipoprotein and epoxy resin form add compound inslation that a layer polypropylene and epoxy resin forms and one deck mylar and add the compound inslation that one deck polyimide and epoxy resin forms respectively.Puncturing of Electric Power Equipment Insulation structure is seldom had to be the result of single superpotential effect, the damage process of most insulation system is all first because the factors such as bad border, temperature and shelf depreciation cause insulating material hydraulic performance decline, finally punctures under the effect of superpotential or rated voltage.Research at present for the environmental aging of dry-type air-core reactor turn-to-turn insulation, heat ageing and voltage ageing mainly launches separately epoxy resin and membraneous material, does not study compound substance.For disclosing the basic reason causing dry-type air-core reactor high failure rate, research should be launched to the damage process of dry-type air-core reactor turn-to-turn compound inslation and agine mechaism.By to dry-type air-core reactor turn-to-turn insulation fault cause, mechanism and fault occur, the process of development is explored, find the main cause causing dry-type air-core reactor turn-to-turn insulation fault, and accordingly to the design of dry-type air-core reactor, produce, inspection and operation propose corresponding innovative approach, to reach the product quality improving dry-type air-core reactor, reduce the failure rate of its turn-to-turn insulation in operational process, and then reach the threat reducing and bring to safe operation of power system due to dry-type air-core reactor turn-to-turn insulation fault, reduce the object of economic loss.
Utility model content
The purpose of this utility model is the device not carrying out the test of dry-type air-core reactor turn-to-turn insulation damage mechanism in order to solve prior art, the product quality of dry-type air-core reactor cannot be ensured, cause the problem that in operational process, the failure rate of turn-to-turn insulation is high.
The technical solution of the utility model is: for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, comprise sample model and electrode assembly, the terminals that described sample model comprises parallel connection two ends, two middle parts are the metal wire of Y-shaped, described electrode assembly comprises high-field electrode, ground-electrode, two insulation insulating support rods, two screening electrodes and two cube electrode installing plates, two cube electrode installing plates set up parallel connection by high-field electrode and ground-electrode, two terminals of one wires of described sample model connect high-field electrode and screening electrodes respectively, two terminals of another wires connect screening electrodes and ground-electrode respectively.
Described electrode assembly comprises four electrode tips, the structure of described two cube electrode installing plates is identical, four angles of electrode installing plate are provided with the first mounting hole along clockwise direction successively, second mounting hole, 3rd mounting hole and the 4th mounting hole, described 3rd mounting hole is two ends is along its length the bar hole of arc, the two ends of high-field electrode are each passed through and connect at the first mounting hole of two cube electrode installing plates and electrode tip, the two ends of ground-electrode are each passed through and connect at the 3rd mounting hole of two cube electrode installing plates and electrode tip, described ground-electrode can slide in the 3rd mounting hole, can dismounting sample model easily by moving left and right of ground-electrode.
Described electrode tip inside is provided with tapped blind hole, the two ends of high-field electrode are provided with external thread, the two ends of high-field electrode are by being threaded in the tapped blind hole of electrode tip, and the two ends of ground-electrode are provided with external thread, and the two ends of ground-electrode are by being threaded in the tapped blind hole of electrode tip.
Described electrode assembly comprises four support bar terminations, the two ends of an insulating support rod are each passed through the second mounting hole of two cube electrode installing plates and support bar termination connects, and the two ends of another root support bar are each passed through the 4th mounting hole of two cube electrode installing plates and support bar termination connects.
The two ends of described insulating support rod are provided with external thread, and support bar establishes tapped blind hole in termination, and the two ends of described insulating support rod are respectively by being threaded in the tapped blind hole of support bar termination.
Described high-field electrode is copper rod, the middle part of high-field electrode is provided with the first radial through hole and the first threaded hole, first through hole and the first threaded hole are interconnected, described first through hole is vertical with the axis co-planar of the first threaded hole, terminals of described sample model insert in the first through hole, and described first threaded hole is used for the sample model terminals in fixing insertion first through hole.
Described screening electrodes is aluminium post electrode, screening electrodes is provided with radial blind round hole and the second threaded hole, described blind round hole and the second threaded hole are interconnected, blind round hole is vertical with the axis co-planar of the second threaded hole, terminals of described sample model insert in blind round hole, and described second threaded hole is used for the terminals of the fixing sample model inserted in blind round hole.
Described ground-electrode is copper rod, the middle part of ground-electrode has radial strip through-hole, bar-shaped trough, first tapped through hole and the second tapped through hole, described strip through-hole two ends are along its length curved, the bottom of described bar-shaped trough is communicated with strip through-hole hole, the axial section of described bar-shaped trough is vertical with the axial section of strip through-hole, first tapped through hole and the second tapped through hole are opened at bar-shaped trough two ends along its length, the axis of the first tapped through hole and the axis of the second tapped through hole and the axial section of bar-shaped trough coplanar, terminals of described sample model insert in strip through-hole.
The screw thread at high-field electrode and ground-electrode two ends is used for fixing high-voltage leading-out wire and ground wire lead;
Two wires of described sample model are aluminum steel, the outside of every wires is provided with three strata ester film and layer of non-woven fabric successively, the middle part of two wires is fixed by the adhering with epoxy resin after solidification, the metal wire at described sample model two ends be exposed metal wire.For as much as possible close to the structure of true dry-type air-core reactor turn-to-turn insulation, adopt the film alclad line identical with actual reactor, the insulation course removing wire termination is that aluminum steel is exposed outer so that wiring, finally brushes epoxy resin Post RDBMS in film alclad line outside and becomes an entirety;
The angle of two wires at described sample model two ends is 90 °.
The utility model compared with prior art has following effect: the utility model provides a kind of electrode system for studying dry-type air-core reactor turn-to-turn insulation damage mechanism.Effectively can simulate the aging evolution of the environment of dry-type air-core reactor turn-to-turn insulation material, temperature, shelf depreciation and the breakdown characteristics under operating voltage, superpotential.The utility model can only carry out aging to sample when carrying out heat ageing and environmental aging test; The brass electrode of larger radius of curvature and the screening electrodes of aluminum can prevent the generation of corona, make this electrode system not only can carry out breakdown test, also can carry out the related experiment of shelf depreciation.
Accompanying drawing explanation
Fig. 1, the structural representation of sample model of the present utility model;
Fig. 2, electrode assembly structural representation of the present utility model, Fig. 2 a is the front view of electrode assembly, and Fig. 2 b is the right view of electrode assembly, and Fig. 2 c is the vertical view of electrode assembly;
Fig. 3, the structural representation of electrode installing plate of the present utility model;
Fig. 4, the structural representation of the utility model high-field electrode, Fig. 4 a is the front view of high-field electrode, and Fig. 4 b is the left view of high-field electrode;
Fig. 5, the structural representation of insulating support rod of the present utility model;
Fig. 6, the structural representation of ground-electrode of the present utility model, Fig. 6 a is the front view of ground-electrode, and Fig. 6 b is the left view of ground-electrode;
Fig. 7, electrode tip structural representation of the present utility model;
Fig. 8, the cross-sectional of screening electrodes of the present utility model.
Embodiment
Accompanying drawings embodiment of the present utility model, electrode system for studying dry-type air-core reactor turn-to-turn insulation damage mechanism of the present utility model, comprise sample model and electrode assembly, described sample original mold type comprises two length and is 375mm metal wire, the terminals at parallel connection two ends, two middle parts are the metal wire of Y-shaped, wherein the length of parallel portion is 180mm, described electrode assembly comprises high-field electrode 1, ground-electrode 2, two insulating support rods 3, two screening electrodes and two cube electrode installing plates 4, two cube electrode installing plates 4 set up parallel connection by high-field electrode 1 with ground-electrode 2, two terminals of one wires of described sample model connect high-field electrode 1 and screening electrodes respectively, two terminals of another wires connect screening electrodes and ground-electrode 2 respectively.
As shown in Figure 1, aluminum steel 21 and the aluminum steel 24 of two wires of described sample model to be diameter be 4mm, two terminals of aluminum steel 21 are respectively high-field electrode node section 22 and screening electrodes terminals 23, aluminum steel 24 two terminals are respectively screening electrodes terminals 25 and ground-electrode terminals 26, the outside of every root aluminum steel is wound around three strata ester film and layer of non-woven fabric successively, having wrapped the aluminum steel diameter after insulation is 4.4mm, the middle part of two wires is fixed by the adhering with epoxy resin of solidification, the wherein dipping of nonwoven fabrics mainly conveniently epoxy resin, after epoxy resin cure, whole sample is played to the effect of the fixing and electric insulation of machinery, the metal wire at described sample model two ends be exposed metal wire.
The angle of two wires at described sample original mold type two ends is 90 °.
Described electrode assembly comprises four electrode tip 5-1, described electrode tip 5-1 employing diameter is that the brass bar of 30mm processes, the structure of described two cube electrode installing plates 4 is identical, be thick 5mm, long 380mm, the epoxy plate of wide 300mm, four angles of electrode installing plate 4 are provided with the first mounting hole 6 along clockwise direction successively, second mounting hole 8, 3rd mounting hole 9 and the 4th mounting hole 7, described first mounting hole 6, second mounting hole 8 and the 4th mounting hole 7 are the manhole that diameter is 10mm, 3rd mounting hole 9 is two ends is along its length the bar hole of arc, the width of the 3rd mounting hole 9 is 10mm, length is 60mm, the semicircle of the arc at two ends to be diameter be 10mm, the distance of the center of the first mounting hole 6 and the left end of electrode installing plate 4 and upper end is all 25mm, the center of the 4th mounting hole 7 and the left end of electrode installing plate 4 and the distance of lower end are respectively 25mm, 55mm, the center of the second mounting hole 8 and the distance of electrode installing plate 4 right-hand member and upper end are respectively 75mm, 55mm, 3rd mounting hole 9 is parallel with electrode installing plate about 4 both sides, the center of circle of left and right sides semi arch and the distance of electrode installing plate 4 right-hand member are respectively 75mm, 25mm, 55mm is with the distance of electrode installing plate 4 lower end.The two ends of high-field electrode 1 are each passed through and connect with electrode tip 5-1 at the first mounting hole 6 of two cube electrode installing plates 4, the two ends of ground-electrode 2 are each passed through and connect with electrode tip 5-1 at the 3rd mounting hole 9 of two cube electrode installing plates 4, and described ground-electrode 2 can slide in the 3rd mounting hole 9.
Described electrode tip 5-1 inside is provided with dark 20mm tapped blind hole, the external thread 10 that length is the M10 of 18mm is processed at the two ends of high-field electrode 1, the two ends of high-field electrode 1 are by being threaded in the tapped blind hole 18-1 of electrode tip 5-1, the copper rod two ends of ground-electrode 2 are processed with the external thread 14 that length is the M10 of 18mm, and the two ends of ground-electrode 2 are by being threaded in the tapped blind hole 18-1 of electrode tip 5-1.
Described electrode assembly comprises four support bar termination 5-2, support bar termination 5-2 is identical with electrode tip 5-1, the second mounting hole 8 that the two ends of an insulating support rod 3 are each passed through two cube electrode installing plates 4 connects with support bar termination 5-2, and the 4th mounting hole 7 that the two ends of another root support bar are each passed through two cube electrode installing plates 4 connects with support bar termination 5-2.
The epoxy resin rod that described insulating support rod 3 is 286mm by two diameter 30mm, length processes, the M10 external thread 13 that length is 18mm is processed at the two ends of insulating support rod 3, as insulating supporting, establish tapped blind hole in the 5-2 of support bar termination, the two ends of described insulating support rod 3 are respectively by being threaded in the tapped blind hole of support bar termination 5-2.
Described high-field electrode 1 for diameter be 30mm, length is the brass bar electrode of 286mm, the middle part of high-field electrode 1 is provided with the first radial through hole 11 and the first threaded hole 12, the diameter of the first through hole 11 is 6mm, the internal thread of M6 is provided with in first threaded hole 12, first through hole 11 and the first threaded hole 12 are interconnected, described first through hole 11 is vertical with the axis co-planar of the first threaded hole 12, and terminals of described sample model insert in the first through hole 11.
Described screening electrodes is the aluminium post electrode of diameter 30mm, height 30mm, screening electrodes is provided with radial blind round hole 19 and the second threaded hole 20, described blind round hole 19 and the second threaded hole 20 are interconnected, blind round hole 19 is vertical with the axis co-planar of the second threaded hole 20, terminals of described sample model insert in blind round hole 19, and the specification of described blind round hole 19 is: diameter 6mm, degree of depth 20mm.
Described ground-electrode 2 is diameter 30mm, the brass bar electrode of length 286mm, the middle part of ground-electrode 2 has radial strip through-hole 15, bar-shaped trough 16, first tapped through hole 17-1 and the second tapped through hole 17-2, described strip through-hole 15 two ends are along its length curved, the bottom of described bar-shaped trough 16 is communicated with strip through-hole 15 hole, the axial section of described bar-shaped trough 16 is vertical with the axial section of strip through-hole 15, first tapped through hole 17-1 and the second tapped through hole 17-2 opens at bar-shaped trough 16 two ends along its length, the axis of the first tapped through hole 17-1 and the axis of the second tapped through hole 17-2 and the axial section of bar-shaped trough 16 coplanar, terminals of described sample model insert in strip through-hole 15, the specification of described strip through-hole 15 is: width is 6mm, length is 90mm, the semicircle of the circular arc at the two ends of strip through-hole 15 to be radius be 5mm, the specification of described bar-shaped trough 16 is: width is 10mm, length is 90mm, degree of depth 15mm, is provided with the internal thread of M6 in the first tapped through hole 17-1 and the second tapped through hole 17-2.
The assembling mode of present embodiment is: by two upright parallel placements of epoxy installing plate 4, by the external thread 10 at high-field electrode 1 two ends through epoxy installing plate 4 first mounting hole 6, the position of adjustment high-field electrode 1 makes its first through hole 11 be positioned at horizontal direction, and the first threaded hole 12 of fixation test leading-out terminal is positioned at the internal thread 18-1 that the external thread 10 of high-field electrode 1 is upwards screwed into electrode tip 5-1 by vertical direction afterwards.The external thread 13 thoroughly doing away with edge insulating support rods 3 respectively by two is through the internal thread being screwed into support bar termination 5-2 after the second mounting hole 7 of epoxy installing plate 4 and the 4th mounting hole 8.By the external thread 14 of ground-electrode 2 through epoxy installing plate 4 the 3rd mounting hole 9, the position of adjustment ground-electrode 2 makes its bar shaped peace through hole 15 be positioned at horizontal direction bar-shaped trough 16, first tapped through hole 17-1 and the second tapped through hole 17-2 is vertical direction, and bar-shaped trough 16 upward, the first internal thread through hole 17-1 and the second internal thread through hole 17-2 down, the external thread 14 of ground-electrode 2 is screwed into the internal thread 18-1 of electrode tip 5-1.Finally all electrode tip 5-1 and support bar termination 5-2 are tightened, form whole electrode system.
Process of the test is as follows: the electrode tip 5-1 first unclamping ground-electrode 2 two ends, along epoxy installing plate 4 the 3rd mounting hole 9 outwards slip ground-electrode 2 to outermost end.Goed deep into by the high-voltage terminal end 22 of test model in the first through hole 11 of high-field electrode 1, the position of adjustment sample model is located at vertical direction, and sample fixed by the screw that high-field electrode 1 is screwed in first threaded hole 12 M6 of Endless.Mobile grounding electrode 2 to the inside, the ground connection leading-out terminal 26 of sample model is made to go deep in the strip through-hole 15 of ground-electrode 2, with the flexible cord that two ends are welded with " O " type aluminium terminal of Φ 6, total length is 85mm, the leading-out terminal 26 of model sample is pushed down, in ground-electrode 2 first tapped through hole 17-1 and the second tapped through hole 17-2, be screwed into common screw make it compress leading-out terminal 26 with fixing flexible cord.Respectively the other leading-out terminal 23,25 of two aluminum steels 21,24 is goed deep in the blind round hole 19 of screening electrodes diameter 6mm, degree of depth 20mm, and in second threaded hole 20 of the M6 of screening electrodes, be screwed into Endless screw fix.Using high-field electrode 1 electrode tip position as high-voltage terminal, the position of an electrode tip of ground-electrode 2, as connecing terminals, just can apply voltage, formally starts to puncture or aging test.
Claims (10)
1. for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, comprise sample model and electrode assembly, it is characterized in that: the terminals that described sample model comprises parallel connection two ends, two middle parts are the metal wire of Y-shaped, described electrode assembly comprises high-field electrode, ground-electrode, two screening electrodes and two cube electrode installing plates, two cube electrode installing plates set up parallel connection by high-field electrode and ground-electrode, two terminals of one wires of described sample model connect high-field electrode and screening electrodes respectively, two terminals of another wires connect screening electrodes and ground-electrode respectively.
2. according to claim 1 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: described electrode assembly comprises four electrode tips, the structure of described two cube electrode installing plates is identical, four angles of electrode installing plate are provided with the first mounting hole along clockwise direction successively, second mounting hole, 3rd mounting hole and the 4th mounting hole, described 3rd mounting hole is two ends is along its length the bar hole of arc, the two ends of high-field electrode are each passed through and connect at the first mounting hole of two cube electrode installing plates and electrode tip, the two ends of ground-electrode are each passed through and connect at the 3rd mounting hole of two cube electrode installing plates and electrode tip, described ground-electrode can slide in the 3rd mounting hole.
3. according to claim 2 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: described electrode tip inside is provided with tapped blind hole, the two ends of high-field electrode are provided with external thread, the two ends of high-field electrode are by being threaded in the tapped blind hole of electrode tip, the two ends of ground-electrode are provided with external thread, and the two ends of ground-electrode are by being threaded in the tapped blind hole of electrode tip.
4. according to claim 2 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: described electrode assembly comprises two insulating support rods and four support bar terminations, the two ends of an insulating support rod are each passed through the second mounting hole of two cube electrode installing plates and support bar termination connects, and the two ends of another root support bar are each passed through the 4th mounting hole of two cube electrode installing plates and support bar termination connects.
5. according to claim 4 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: the two ends of described insulating support rod are provided with external thread, support bar establishes tapped blind hole in termination, and the two ends of described insulating support rod are respectively by being threaded in the tapped blind hole of support bar termination.
6. according to claim 1 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: described high-field electrode is copper rod, the middle part of high-field electrode is provided with the first radial through hole and the first threaded hole, first through hole and the first threaded hole are interconnected, described first through hole is vertical with the axis co-planar of the first threaded hole, and terminals of described sample model insert in the first through hole.
7. according to claim 1 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: described screening electrodes is aluminium post electrode, screening electrodes is provided with radial blind round hole and the second threaded hole, described blind round hole and the second threaded hole are interconnected, blind round hole is vertical with the axis co-planar of the second threaded hole, and terminals of described sample model insert in blind round hole.
8. according to claim 1 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: described ground-electrode is copper rod, the middle part of ground-electrode has radial strip through-hole, bar-shaped trough, first tapped through hole and the second tapped through hole, described strip through-hole two ends are along its length curved, the bottom of described bar-shaped trough is communicated with strip through-hole, the axial section of described bar-shaped trough is vertical with the axial section of strip through-hole, first tapped through hole and the second tapped through hole are opened at bar-shaped trough two ends along its length, the axis of the first tapped through hole and the axis of the second tapped through hole and the axial section of bar-shaped trough coplanar, terminals of described sample model insert in strip through-hole.
9. according to claim 1 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: the outside of every wires of described sample model is provided with three strata ester film and layer of non-woven fabric successively, the middle part of two wires is fixed by the adhering with epoxy resin after solidification, the metal wire at described sample model two ends be exposed metal wire.
10. according to claim 1 for studying the electrode system of dry-type air-core reactor turn-to-turn insulation damage mechanism, it is characterized in that: two wires of described sample model are aluminum steel, the angle of two wires at sample model two ends is 90 °.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759183A (en) * | 2016-02-22 | 2016-07-13 | 哈尔滨理工大学 | Dry-type air-core reactor turn-to-turn insulation test model without partial discharge |
| CN107599279A (en) * | 2017-08-17 | 2018-01-19 | 国网上海市电力公司 | Gapless turn-to-turn insulation dry-type air-core reactor prepares mould and preparation method of sample |
-
2015
- 2015-10-12 CN CN201520789470.0U patent/CN205027864U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759183A (en) * | 2016-02-22 | 2016-07-13 | 哈尔滨理工大学 | Dry-type air-core reactor turn-to-turn insulation test model without partial discharge |
| CN105759183B (en) * | 2016-02-22 | 2018-05-01 | 哈尔滨理工大学 | A kind of dry-type air-core reactor turn to turn test model of no shelf depreciation |
| CN107599279A (en) * | 2017-08-17 | 2018-01-19 | 国网上海市电力公司 | Gapless turn-to-turn insulation dry-type air-core reactor prepares mould and preparation method of sample |
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Granted publication date: 20160210 Termination date: 20201012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |