CN108802582A - A kind of high-voltage cable middle joint Partial Discharge Detection pilot system - Google Patents
A kind of high-voltage cable middle joint Partial Discharge Detection pilot system Download PDFInfo
- Publication number
- CN108802582A CN108802582A CN201810651039.8A CN201810651039A CN108802582A CN 108802582 A CN108802582 A CN 108802582A CN 201810651039 A CN201810651039 A CN 201810651039A CN 108802582 A CN108802582 A CN 108802582A
- Authority
- CN
- China
- Prior art keywords
- cable
- test
- intermediate joint
- partial discharge
- gis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01R31/1227—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 of components, parts or materials
- G01R31/1263—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
本发明公开了一种高压电缆中间接头局部放电检测试验系统，工频控制台的输出端与升压变压器的低压输入端相连，升压变压器的输出端与均压环连接，均压环安装在试验终端的顶部，试验终端通过连接电缆与GIS插拔式中间接头连接，中间接头试品的两头通过试品电缆与GIS插拔式中间接头和GIS电缆终端连接，高频脉冲电流传感器安装在中间接头试品的接地线上，局放测试仪与高频脉冲电流传感器连接。本发明通过引入GIS插拔式中间接头可以实现两侧不同截面电缆的连接，使得在更换缺陷中间接头及其连接的电缆时无需对整个试验回路进行更换，可以提升试验效率，节省试验成本。
The invention discloses a partial discharge detection test system for the intermediate joint of a high-voltage cable. The output end of the power frequency console is connected with the low-voltage input end of the step-up transformer, and the output end of the step-up transformer is connected with the voltage equalizing ring, which is installed on the The top of the test terminal, the test terminal is connected to the GIS plug-in intermediate connector through the connecting cable, the two ends of the intermediate connector test sample are connected to the GIS plug-in intermediate connector and the GIS cable terminal through the test cable, and the high-frequency pulse current sensor is installed in the middle Connect the grounding wire of the joint test object to the partial discharge tester and the high-frequency pulse current sensor. The present invention can realize the connection of cables with different cross-sections on both sides by introducing the GIS plug-in intermediate joint, so that the entire test circuit does not need to be replaced when replacing the defective intermediate joint and the connected cables, which can improve test efficiency and save test cost.
Description
技术领域technical field
本发明涉及电力设备局部放电检测技术领域，尤其涉及一种高压电缆中间接头局部放电检测试验系统。The invention relates to the technical field of partial discharge detection of electric power equipment, in particular to a partial discharge detection test system for intermediate joints of high-voltage cables.
背景技术Background technique
随着高压电缆在国内电网的广泛应用，相应的电缆中间接头及其它连接附件也大量增加。相较于电缆本体，电缆中间接头的绝缘多采用多层复合介质且结构较为复杂，因而发生的故障概率远高于电缆本体。统计数据表明，若不计外力破坏，70%的电缆系统故障是由于电缆附件绝缘破坏造成的。局部放电是电缆中间接头绝缘缺陷的主要表现形式，而局部放电进一步发展则是造成电缆击穿故障的主要原因。With the wide application of high-voltage cables in the domestic power grid, the corresponding cable intermediate joints and other connection accessories have also increased significantly. Compared with the cable body, the insulation of the cable intermediate joint is mostly made of multi-layer composite medium and the structure is more complex, so the probability of failure is much higher than that of the cable body. Statistics show that 70% of cable system failures are caused by insulation damage of cable accessories, excluding external force damage. Partial discharge is the main manifestation of insulation defects in cable intermediate joints, and the further development of partial discharge is the main cause of cable breakdown faults.
为了研究电缆中间接头在不同缺陷下的局部放电特性，电缆厂家和科研机构需在实验室内对电缆中间接头人为设置不同的模拟缺陷，并进行局部放电检测。在模拟缺陷试验过程中经常需要对含缺陷的电缆中间接头进行更换，由于不同电压等级的电缆中间接头对应不同截面的电缆，当中间接头更换时，整个试验回路的电缆及两端的电缆终端也需要同步更换，导致更换工作量大、周期长且成本高。In order to study the partial discharge characteristics of cable intermediate joints under different defects, cable manufacturers and scientific research institutions need to artificially set different simulated defects for cable intermediate joints in the laboratory and conduct partial discharge detection. In the process of simulating the defect test, it is often necessary to replace the defective cable intermediate joints. Since the cable intermediate joints of different voltage levels correspond to cables of different cross-sections, when the intermediate joints are replaced, the cables of the entire test circuit and the cable terminals at both ends also need to be replaced. Synchronous replacement leads to heavy replacement workload, long cycle and high cost.
发明内容Contents of the invention
针对以上不足，本发明提供一种高压电缆中间接头局部放电检测试验系统，能够便于更换电缆中间接头，且无须同步更换试验回路的电缆及两端的电缆终端。In view of the above shortcomings, the present invention provides a high-voltage cable intermediate joint partial discharge detection test system, which can facilitate the replacement of the cable intermediate joint, and does not need to simultaneously replace the cable of the test circuit and the cable terminals at both ends.
为达到上述目的，本发明采用如下技术方案：To achieve the above object, the present invention adopts the following technical solutions:
一种高压电缆中间接头局部放电检测试验系统，包括工频控制台、升压变压器、均压环、试验终端、连接电缆、GIS插拔式中间接头、中间接头试品、试品电缆、GIS电缆终端、高频脉冲电流传感器、局放测试仪，所述工频控制台的输出端与升压变压器的低压输入端相连，所述升压变压器的输出端与均压环连接，所述均压环安装在试验终端的顶部，所述试验终端通过连接电缆与GIS插拔式中间接头连接，所述中间接头试品的两头通过试品电缆与GIS插拔式中间接头和GIS电缆终端连接，所述高频脉冲电流传感器安装在中间接头试品的接地线上，所述局放测试仪与高频脉冲电流传感器连接。A high-voltage cable intermediate joint partial discharge detection test system, including power frequency console, step-up transformer, voltage equalizing ring, test terminal, connecting cable, GIS plug-in intermediate joint, intermediate joint test product, test product cable, GIS cable Terminal, high-frequency pulse current sensor, partial discharge tester, the output end of the power frequency console is connected to the low-voltage input end of the step-up transformer, the output end of the step-up transformer is connected to the voltage equalizing ring, and the voltage equalizing The ring is installed on the top of the test terminal, and the test terminal is connected to the GIS plug-in intermediate connector through the connecting cable, and the two ends of the intermediate connector test sample are connected to the GIS plug-in intermediate connector and the GIS cable terminal through the test cable. The high-frequency pulse current sensor is installed on the ground wire of the intermediate joint test product, and the partial discharge tester is connected with the high-frequency pulse current sensor.
进一步地，所述GIS插拔式中间接头包括导体连接杆和屏蔽罩，所述屏蔽罩套设在导体连接杆的外侧，所述导体连接杆用于连接GIS插拔式中间接头两侧的连接电缆和试品电缆。Further, the GIS plug-in intermediate joint includes a conductor connecting rod and a shielding cover, the shielding cover is sleeved on the outside of the conductor connecting rod, and the conductor connecting rod is used to connect the two sides of the GIS plug-in intermediate joint. cables and test cables.
进一步地，所述屏蔽罩为金属圆筒。Further, the shielding case is a metal cylinder.
进一步地，局放测试仪通过BNC同轴电缆与高频脉冲电流传感器连接。Further, the partial discharge tester is connected to the high-frequency pulse current sensor through a BNC coaxial cable.
进一步地，所述GIS插拔式中间接头的适用单芯电缆截面为240mm2~2500mm2。Further, the applicable single-core cable cross section of the GIS plug-in intermediate connector is 240mm 2 ~2500mm 2 .
进一步地，所述GIS电缆终端的适用单芯电缆截面为240mm2~2500mm2。Further, the applicable single-core cable section of the GIS cable terminal is 240mm 2 ~2500mm 2 .
与现有技术相比，本发明的有益效果是：本发明通过引入GIS插拔式中间接头可以实现两侧不同截面电缆的连接，使得在更换缺陷中间接头及其连接的电缆时无需对整个试验回路进行更换，可以提升试验效率，节省试验成本。Compared with the prior art, the beneficial effect of the present invention is: the present invention can realize the connection of cables with different cross-sections on both sides by introducing the GIS plug-in intermediate joint, so that it is not necessary to conduct the entire test when replacing the defective intermediate joint and the connected cables. The replacement of the circuit can improve the test efficiency and save the test cost.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，以下将对实施例描述中所需要使用的附图作简单地介绍。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments.
图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
请参照图1，本发明优选的实施例提供一种高压电缆中间接头局部放电检测试验系统，包括工频控制台1、升压变压器2、均压环3、试验终端4、连接电缆5、GIS插拔式中间接头6、中间接头试品7、试品电缆8、GIS电缆终端9、导体连接杆10、屏蔽罩11、接地线12、高频脉冲电流传感器13、局放测试仪14。Please refer to Fig. 1, the preferred embodiment of the present invention provides a high-voltage cable intermediate joint partial discharge detection test system, including power frequency console 1, step-up transformer 2, voltage equalizing ring 3, test terminal 4, connecting cable 5, GIS Plug-in intermediate joint 6, intermediate joint test product 7, test product cable 8, GIS cable terminal 9, conductor connecting rod 10, shielding cover 11, grounding wire 12, high-frequency pulse current sensor 13, partial discharge tester 14.
工频控制台1的输入端连接10kV开关柜，输出端与升压变压器2的低压输入端相连，升压变压器2的输出端与均压环3连接，均压环3安装在试验终端4的顶部，用于均匀电压，避免在试验终端顶端出现电晕放电。The input end of the power frequency console 1 is connected to the 10kV switchgear, the output end is connected to the low-voltage input end of the step-up transformer 2, the output end of the step-up transformer 2 is connected to the voltage equalizing ring 3, and the voltage equalizing ring 3 is installed on the side of the test terminal 4 Top, for uniform voltage, avoiding corona discharge at the top of the test terminals.
试验终端4通过连接电缆5与GIS插拔式中间接头6连接，中间接头试品7两头通过适配的试品电缆8与GIS插拔式中间接头6和GIS电缆终端9连接。The test terminal 4 is connected to the GIS plug-in intermediate connector 6 through the connecting cable 5, and the two ends of the intermediate connector test product 7 are connected to the GIS plug-in intermediate connector 6 and the GIS cable terminal 9 through the adapted test product cable 8.
GIS插拔式中间接头6包括导体连接杆10和屏蔽罩11；屏蔽罩11套设在导体连接杆10的外侧，导体连接杆10用于连接GIS插拔式中间接头6两侧的连接电缆5和试品电缆8。屏蔽罩11为金属圆筒，用于均衡导体连接轴对接处的电场，满足试验时无背景局放的要求。The GIS plug-in intermediate connector 6 includes a conductor connecting rod 10 and a shielding cover 11; the shielding cover 11 is set on the outside of the conductor connecting rod 10, and the conductor connecting rod 10 is used to connect the connecting cables 5 on both sides of the GIS plug-in intermediate connector 6 and test cable8. The shielding case 11 is a metal cylinder, which is used to equalize the electric field at the junction of the connecting shaft of the conductor, so as to meet the requirement of no background partial discharge during the test.
高频脉冲电流传感器安装13在中间接头试品7的接地线12上；局放测试仪14通过BNC同轴电缆与高频脉冲电流传感器13连接。The high-frequency pulse current sensor 13 is installed on the ground wire 12 of the intermediate joint test product 7; the partial discharge tester 14 is connected to the high-frequency pulse current sensor 13 through a BNC coaxial cable.
GIS插拔式中间接头6两端可连接不同截面的单芯电缆。GIS插拔式中间6的适用单芯电缆截面为240mm2~2500mm2，可以满足110kV~220kV电缆的截面要求。GIS电缆终端9的适用单芯电缆截面为240mm2~2500mm2，可以满足110kV~220kV电缆的截面要求。The two ends of the GIS plug-in intermediate joint 6 can be connected with single-core cables of different cross-sections. The applicable single-core cable cross-section of GIS plug-in middle 6 is 240mm 2 ~2500mm 2 , which can meet the cross-section requirements of 110kV~220kV cables. The applicable single-core cable cross section of the GIS cable terminal 9 is 240mm 2 ~2500mm 2 , which can meet the cross section requirements of 110kV~220kV cables.
实施时，中间接头试品7和试品电缆8是相互配合的，当需要对中间接头试品7进行更换时，同步需要更换试品电缆8。更换时只需将试品电缆8从插拔式中间接头6和GIS电缆终端9上拆除，安装新的中间接头试品和试品电缆即可。整个过程中试验终端4和连接电缆5均不需要更换，节约了更换工作量，节省了试验成本。During implementation, the intermediate joint test product 7 and the test product cable 8 are matched with each other, and when the intermediate joint test product 7 needs to be replaced, the test product cable 8 needs to be replaced synchronously. When replacing, it is only necessary to remove the test cable 8 from the plug-in intermediate joint 6 and the GIS cable terminal 9, and install a new intermediate joint test product and test cable. During the whole process, the test terminal 4 and the connecting cable 5 do not need to be replaced, which saves the replacement workload and saves the test cost.
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651039.8A CN108802582A (en) | 2018-06-22 | 2018-06-22 | A kind of high-voltage cable middle joint Partial Discharge Detection pilot system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651039.8A CN108802582A (en) | 2018-06-22 | 2018-06-22 | A kind of high-voltage cable middle joint Partial Discharge Detection pilot system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108802582A true CN108802582A (en) | 2018-11-13 |
Family
ID=64084399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810651039.8A Pending CN108802582A (en) | 2018-06-22 | 2018-06-22 | A kind of high-voltage cable middle joint Partial Discharge Detection pilot system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108802582A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672886A (en) * | 2019-10-15 | 2020-01-10 | 国网天津市电力公司 | Adapter for GIS cable termination testing |
| EP4155740A1 (en) * | 2021-09-23 | 2023-03-29 | Nexans | Partial discharge test of factory joints |
| CN114039319B (en) * | 2021-12-08 | 2023-08-15 | 国网河南省电力公司经济技术研究院 | GIS type high-voltage cable temporary jump device with protection and remote jump functions |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101459329A (en) * | 2007-12-13 | 2009-06-17 | 上海波汇通信科技有限公司 | Middle joint of high voltage electric cable for connecting composite optical fiber and connecting method |
| CN201303243Y (en) * | 2008-11-07 | 2009-09-02 | 长沙长缆电缆附件有限公司 | Plug-in reducing cable butting connector for high-voltage power cable |
| CN103207358A (en) * | 2013-04-15 | 2013-07-17 | 广东电网公司佛山供电局 | High-voltage power cable nondestructive detection device |
| CN203191508U (en) * | 2013-05-07 | 2013-09-11 | 华北电力大学 | A GIS partial discharge detection test platform based on transient ground waves |
| CN104410034A (en) * | 2014-12-19 | 2015-03-11 | 国家电网公司 | An intermediate joint suitable for multi-type cables |
| CN204290247U (en) * | 2014-12-31 | 2015-04-22 | 南京浩宁达电气有限公司 | The special-shaped transition joint of cable |
| CN105510786A (en) * | 2016-01-11 | 2016-04-20 | 国网浙江省电力公司电力科学研究院 | Typical defect simulated testing platform of high-voltage cable |
| CN106872830A (en) * | 2017-03-21 | 2017-06-20 | 国网浙江省电力公司电力科学研究院 | One kind the experiment transition joint of high-tension cable plug-in and cable testing apparatus |
| CN208399631U (en) * | 2018-06-22 | 2019-01-18 | 广西电网有限责任公司电力科学研究院 | A kind of high-tension cable partial discharge detection test platform of easy replacement connector |
-
2018
- 2018-06-22 CN CN201810651039.8A patent/CN108802582A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101459329A (en) * | 2007-12-13 | 2009-06-17 | 上海波汇通信科技有限公司 | Middle joint of high voltage electric cable for connecting composite optical fiber and connecting method |
| CN201303243Y (en) * | 2008-11-07 | 2009-09-02 | 长沙长缆电缆附件有限公司 | Plug-in reducing cable butting connector for high-voltage power cable |
| CN103207358A (en) * | 2013-04-15 | 2013-07-17 | 广东电网公司佛山供电局 | High-voltage power cable nondestructive detection device |
| CN203191508U (en) * | 2013-05-07 | 2013-09-11 | 华北电力大学 | A GIS partial discharge detection test platform based on transient ground waves |
| CN104410034A (en) * | 2014-12-19 | 2015-03-11 | 国家电网公司 | An intermediate joint suitable for multi-type cables |
| CN204290247U (en) * | 2014-12-31 | 2015-04-22 | 南京浩宁达电气有限公司 | The special-shaped transition joint of cable |
| CN105510786A (en) * | 2016-01-11 | 2016-04-20 | 国网浙江省电力公司电力科学研究院 | Typical defect simulated testing platform of high-voltage cable |
| CN106872830A (en) * | 2017-03-21 | 2017-06-20 | 国网浙江省电力公司电力科学研究院 | One kind the experiment transition joint of high-tension cable plug-in and cable testing apparatus |
| CN208399631U (en) * | 2018-06-22 | 2019-01-18 | 广西电网有限责任公司电力科学研究院 | A kind of high-tension cable partial discharge detection test platform of easy replacement connector |
Non-Patent Citations (1)
| Title |
|---|
| 王俊波等: "10 kV电缆中间接头典型缺陷放电特征研究", 《电气安全》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672886A (en) * | 2019-10-15 | 2020-01-10 | 国网天津市电力公司 | Adapter for GIS cable termination testing |
| CN110672886B (en) * | 2019-10-15 | 2025-01-03 | 国网天津市电力公司 | Conversion connector for GIS cable terminal test |
| EP4155740A1 (en) * | 2021-09-23 | 2023-03-29 | Nexans | Partial discharge test of factory joints |
| CN114039319B (en) * | 2021-12-08 | 2023-08-15 | 国网河南省电力公司经济技术研究院 | GIS type high-voltage cable temporary jump device with protection and remote jump functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108152693B (en) | GIL equipment three-pillar insulator fault simulation test platform and simulation test method | |
| CN105510780B (en) | SF6 High-Voltage Electrical Appliances insulated pull rod Insulation Test system and method | |
| CN201708450U (en) | Direct-connecting structure for total box GIS (Geographic Information System) bus and junction box feeder transformer | |
| CN104166080A (en) | GIS device partial discharge defect simulation device used on non-power-frequency working condition | |
| CN202995018U (en) | Calibrating device of partial discharge detecting device | |
| CN110346697A (en) | A kind of GIS composite local discharge source simulator | |
| CN104880652B (en) | Electrified partial discharge test system of switch cabinet and voltage signal extraction device thereof | |
| CN108802582A (en) | A kind of high-voltage cable middle joint Partial Discharge Detection pilot system | |
| CN105510786B (en) | A kind of high-tension cable typical defect simulation test platform | |
| CN106066452A (en) | Quantity of state detecting system under a kind of high tension cable typical defect | |
| CN102156242A (en) | Method for testing transformer insulation combination | |
| CN207992375U (en) | Three support insulator fault simulating test platform of GIL equipment | |
| CN105826748A (en) | Vacuum high-voltage insulation structure for vacuum environment simulator power supply or cable transferring test | |
| CN105301400A (en) | Ultrahigh-voltage AC equipment operation condition simulation system | |
| CN208399631U (en) | A kind of high-tension cable partial discharge detection test platform of easy replacement connector | |
| CN110426616B (en) | GIS partial discharge detection device and method based on flange bolts | |
| CN206311712U (en) | A kind of experimental rig for simulating solid insulating material bubble-discharge defect | |
| Guo et al. | Influence of the material parameters on the electric field intensity distribution of 10kV cable elbow connector | |
| CN203800188U (en) | 10kV handcart switch cabinet bus static contact special-purpose grounding device | |
| CN204789879U (en) | Electrified partial discharge test system of switch cabinet and voltage signal extraction device thereof | |
| CN110068753A (en) | GIS detecting device for basin type insulator and method based on case vibration signal | |
| CN206041295U (en) | Improved 10kV American-style box-type substation with single-eye through-hole | |
| CN103944094A (en) | 10-kV handcart switch cabinet bus fixed contact ground method and special grounding device thereof | |
| CN210720633U (en) | GIS partial discharge detection device based on flange bolt | |
| CN103559358A (en) | Method for analogue simulation of ultrahigh-voltage GIS (gas insulated switchgear) oscillation type lightning surge voltage withstand test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |