WO2013037177A1 - 便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪 - Google Patents
便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪 Download PDFInfo
- Publication number
- WO2013037177A1 WO2013037177A1 PCT/CN2012/000028 CN2012000028W WO2013037177A1 WO 2013037177 A1 WO2013037177 A1 WO 2013037177A1 CN 2012000028 W CN2012000028 W CN 2012000028W WO 2013037177 A1 WO2013037177 A1 WO 2013037177A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- silicone rubber
- insulating sleeve
- detection unit
- unit
- rubber composite
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Definitions
- the invention belongs to the technical field of high voltage electricity, and particularly relates to a comprehensive tester for surface insulation characteristics of a portable silicone rubber composite insulating sleeve.
- Silicone rubber composite insulating sleeve has the advantages of good insulation performance, strong water repellency, good stain resistance and good explosion-proof performance. It is used for external insulation materials and cable terminal protection of arresters, circuit breakers, transformers, transformers, high-voltage switches and bushings. The set is getting more and more widely used. In recent years, with the sharp increase in the use of silicone rubber composite bushings, the deterioration and damage of silicone rubber has also increased. However, due to the different manufacturing processes and materials of different manufacturers, there is a big gap in the quality of their products. At the same time, under the influence of long-term strong electric field, pollution, high humidity, strong ultraviolet rays, long sunshine, and large temperature difference, the surface insulation properties of the silicone rubber composite insulating sleeve may deteriorate.
- the object of the present invention is to overcome the above problems and to provide a portable silicone rubber composite insulating sleeve surface insulation characteristic comprehensive tester.
- the technical solution adopted by the present invention is: a portable silicon rubber composite insulating sleeve surface insulation characteristic comprehensive tester, which is composed of a main control unit, a detecting unit, a collecting unit, a host computer, etc., and is characterized in that: a main control unit (5) Receiving the execution command of the host computer (6), driving the connected hydrophobicity detecting unit (1) and the image acquisition unit (4) to obtain the hydrophobicity detecting unit (1) The test image data is sent to the upper computer (6) for storage and analysis processing, and the water repellency detecting unit (1) is composed of the water spray device and its drive circuit.
- the main control unit (5) of the tester mentioned above can also be connected to the crack detection unit (2), and the main control unit (5) receives the execution command of the upper computer (6), and drives the connected crack detection unit ( 2), the image acquisition unit (4) obtains the test image data of the crack detection unit (2), and sends it to the upper computer (6) for storage and analysis processing, and the crack detection unit (2) is pressed by the pressure device and The drive circuit is composed.
- the main control unit (5) of the tester mentioned above can also be connected to the leakage creepage and electro-corrosion detection unit (3), and the main control unit (5) receives the execution command of the upper computer (6) to obtain the leakage of the connection.
- the loop current data of the crawling and electrocorrosion detecting unit (3) is sent to the upper computer (6) for storage and analysis processing, the electric leakage crawling and electrocorrosion detecting unit (3) is composed of the drip device and its driving circuit and The current collecting device and its conditioning circuit are composed.
- the host computer (6) is a PC, responsible for basic parameter configuration, control of the transmission of operation commands and data reception, storage management and analysis and evaluation of the collected data, and the communication part adopts a wireless local area network.
- the main control unit (5) is composed of an embedded processor, an A/D analog-to-digital converter, a wireless local area network LAN interface module, a storage module, an I/O input/output interface, and a USB interface, and adopts a real-time operating system.
- the main control unit (5) and the upper computer (6) of the tester as described above can also be replaced by the PC (7), the wireless local area network of the communication part is removed, and the upper computer (6) is completed by the PC (7).
- Figure 1 is a schematic view showing the structure of Embodiment 1.
- Figure 2 is a schematic view showing the outline structure of the main control unit of the embodiment 1.
- Figure 3 is a schematic view showing the structure of Embodiment 2.
- FIG. 1 is a schematic view showing the structure of Embodiment 1.
- the portable silicon rubber composite insulating sleeve surface insulation characteristic comprehensive tester comprises the upper computer (6), the main control unit (5), the hydrophobicity detecting unit (1), the crack detecting unit (2), the electric leakage crawling and the electric Corrosion detection unit (3) and image acquisition unit (4).
- the working process is as follows: First, the main control unit (5) receives the execution command of the upper computer (6), drives the hydrophobic detection unit (1) and the crack detection unit (2), and the image acquisition unit (4) acquires the hydrophobicity detection. Test image data of unit (1) and crack detection unit (2); acquisition of loop current data of leakage creepage and electrocorrosion detection unit (3); image data and current data are sent to the main control unit (5) The host computer (6) is stored and analyzed.
- the hydrophobicity detecting unit (1) is composed of a water spraying device and a driving circuit thereof
- the crack detecting unit (2) is composed of a pressure applying device and a driving circuit thereof
- the leakage creeping and electrocorrosion detecting unit (3) is composed of a dripping device and The drive circuit and the current collecting device and the conditioning circuit thereof are composed.
- the host computer (6) is a PC, responsible for basic parameter configuration, sending control operation commands and receiving data.
- the communication part adopts the wireless local area network to store and manage the collected data, and relies on the software management function to analyze and process the test data and compare the previous test data to realize the comprehensive diagnosis and life evaluation of the surface insulation properties of the silicone rubber composite insulating sleeve.
- the main control unit (5) is composed of an embedded processor, an A/D analog-to-digital converter, a wireless local area network LAN interface module, a storage module, an I/O input/output interface, and a USB interface, and adopts a real-time operating system.
- Figure 2 is a schematic view showing the outline of the main control unit of the embodiment 1.
- the panel has a switch button, a power jack, a USB interface and a terminal.
- FIG. 3 is a schematic view showing the structure of Embodiment 2.
- the difference from Embodiment 1 is that the wireless transmission part is cancelled, the main control unit (5) and the upper computer (6) are replaced by the PC (7), and the upper computer (6) and the main control unit are completed by the PC (7).
- the whole tester consists of PC (7), hydrophobic detection unit (1), crack detection unit (2), electric leakage and electro-corrosion detection unit (3) and image acquisition unit (4) )composition.
- the RS232 interface of the PC is connected to the drive circuit of the hydrophobic detection unit (1), the crack detection unit (2), the leakage creepage and the electro-corrosion detection unit (3), and the data acquisition card A/D and leakage of the PC
- the adjustment circuit of the trace and electro-corrosion detection unit (3) is connected, and the USB interface of the PC is connected to the image acquisition device.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Ecology (AREA)
- Biochemistry (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Testing Relating To Insulation (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
一种便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪,由主控单元(5)、上位机(6)、憎水性检测单元(1)、龟裂检测单元(2)、漏电爬痕及电腐蚀检测单元(3)、图像采集单元(4)组成,用于测试和判断硅橡胶复合绝缘套管表面憎水性能、绝缘性能、龟裂裂紋长度、宽度和密度,对伞裙和护套表面情况进行综合评价,检测硅橡胶漏电爬痕及电腐蚀,实现对硅橡胶复合绝缘套管表面绝缘特性的综合诊断及寿命评估。
Description
便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪 技术领域
本发明属于高压电技术领域,具体涉及一种便携式硅橡胶复合绝缘套管 表面绝缘特性综合测试仪。
背景技术
硅橡胶复合绝缘套管以其绝缘性能好、 憎水性强、 耐污性好、 防爆性 能好等优点在避雷器、 断路器、 变压器、 互感器、 高压开关和套管等外绝 缘材料及电缆终端护套得到越来越多地广泛应用。 近年来随着硅橡胶复合 绝缘套管使用量的剧增, 硅橡胶发生劣化及损坏的情况也日趋增多。 但由 于不同制造厂制作工艺及材质不同其产品质量有较大差距。 同时在长期强 电场、 污秽、 高湿度、 强紫外线、 日照长、 温差大等劣化环境作用下, 硅 橡胶复合绝缘套管表面绝缘特性会出现劣化现象。
由于运行维护及检测手段不完善, 没有现场测试诊断设备, 很难对运 行中硅橡胶复合套管进行诊断检测, 如果任其发展下去, 对电力系统安全 运行造成严重威胁。
发明内容
本发明的目的在于克服上述问题,提供一种便携式硅橡胶复合绝缘套管 表面绝缘特性综合测试仪。
为实现上述目的, 本发明采用的技术方案是: 便携式硅橡胶复合绝缘套 管表面绝缘特性综合测试仪, 由主控单元、检测单元、采集单元、上位机等 组成, 其特征在于: 主控制单元 (5) 接收到上位机 (6) 的执行命令, 驱 动连接的憎水性检测单元(1 )、图像采集单元(4)获取憎水性检测单元(1 )
的测试图像数据, 并发送到上位机(6)进行存储和分析处理, 憎水性检测 单元 (1 ) 由喷水装置及其驱动电路组成。
按上述所说的测试仪的主控制单元 (5) 还可连接龟裂检测单元 (2), 主控制单元 (5) 接收到上位机 (6 ) 的执行命令, 驱动连接的龟裂检测单 元 (2)、 图像采集单元 (4) 获取龟裂检测单元 (2) 的测试图像数据, 并 发送到上位机 (6 ) 并进行存储和分析处理, 龟裂检测单元 (2) 由施压装 置及其驱动电路组成。
按上述所说的测试仪的主控制单元(5)还可连接漏电爬痕及电腐蚀检 测单元 (3 ), 主控制单元 (5 ) 接收到上位机 (6) 的执行命令, 获取连接 的漏电爬痕及电腐蚀检测单元 (3) 的回路电流数据, 并发送到上位机(6) 并进行存储和分析处理, 漏电爬痕及电腐蚀检测单元(3) 由滴液装置及其 驱动电路和电流采集装置及其调理电路组成。
上位机 (6)为 PC机, 负责基本参数配置, 控制操作命令的发送和数据接 收, 对采集数据进行存储管理和分析评判, 通信部分采用无线局域网络。
主控制单元 (5)由嵌入式处理器、 A/D模数转换器、无线局域网络 LAN接口 模块、 存储模块、 I/O输入输出接口和 USB接口组成, 采用实时操作系统。
按上述所说的测试仪的主控制单元(5)和上位机(6)还可由 PC机(7) 取代, 去掉通信部分的无线局域网络, 由 PC机 (7) 完成上位机 (6) 和主 控制单元 (5) 的全部功能。
本发明与现有技术相比具有以下优点:
( 1 ) 体积小、 重量轻, 非常便于运输。
(2) 分布式结构, 集中控制, 便于操作。
(3) 依托软件管理功能对测试数据分析处理、 历次测试数据比较, 实现
对硅橡胶复合绝缘套管表面绝缘特性的综合诊断及寿命评估, 数据处理高效。
(4) 制作简单、 生产成本低、 便于推广使用。
下面通过附图和实施例, 对本发明做进一步的详细描述。
附图说明
附图 1为实施例 1的结构示意图。
附图 2为实施例 1主控制单元的外形结构示意图。
附图 3为实施例 2的结构示意图。
图符说明:
1〜憎水性检测元 ; 2〜龟裂检测单元; 3〜漏电爬痕及电腐蚀检测单元; 4〜图像采集单元; 5〜主控制单元; 6〜上位机; 7〜PC机。
具体实施方式
附图 1为实施例 1的结构示意图。本发明便携式硅橡胶复合绝缘套管表 面绝缘特性综合测试仪由上位机(6)、主控制单元(5)、憎水性检测单元(1 )、 龟裂检测单元(2)、 漏电爬痕及电腐蚀检测单元 (3)及图像采集单元 (4) 组成。其工作过程是: 首先主控制单元(5)接收到上位机(6)的执行命令, 驱动憎水性检测单元 (1 ) 和龟裂检测单元 (2 ), 图像采集单元 (4) 获取 憎水性检测单元 (1 ) 和龟裂检测单元 (2 ) 的测试图像数据; 获取漏电爬 痕及电腐蚀检测单元(3) 的回路电流数据; 图像数据和电流数据均是经过 主控制单元 (5) 发送到上位机 (6) 并进行存储和分析处理。
憎水性检测单元(1 )由喷水装置及其驱动电路组成,龟裂检测单元(2) 由施压装置及其驱动电路组成, 漏电爬痕及电腐蚀检测单元 (3 ) 由滴液装 置及其驱动电路和电流采集装置及其调理电路组成。
上位机(6)为 PC机, 负责基本参数配置,发送控制操作命令和接收数据,
通信部分采用无线局域网络, 对采集数据进行存储管理, 依托软件管理功能对 测试数据分析处理、 历次测试数据比较, 实现对硅橡胶复合绝缘套管表面绝缘 特性的综合诊断及寿命评估。
主控制单元 (5)由嵌入式处理器、 A/D模数转换器、无线局域网络 LAN接口 模块、 存储模块、 I/O输入输出接口和 USB接口组成, 采用实时操作系统。 附 图 2为实施例 1主控制单元的外形结构示意图, 其面板上有开关按钮、 电 源插孔、 USB接口和接线端子。
附图 3为实施例 2的结构示意图。 与实施例 1的不同之处在于取消无 线传输部分, 主控制单元 (5) 和上位机 (6) 由 PC机 (7) 取代, 由 PC机 (7) 完成上位机 (6) 和主控制单元 (5 ) 的全部功能; 整个测试仪由 PC 机(7)、 憎水性检测单元(1 )、 龟裂检测单元(2)、 漏电爬痕及电腐蚀检测单 元(3)及图像采集单元(4)组成。 PC机的 RS232接口与憎水性检测单元(1 )、 龟裂检测单元(2)、 漏电爬痕及电腐蚀检测单元 (3) 的驱动电路连接, PC机 的数据采集卡 A/D与漏电爬痕及电腐蚀检测单元 (3) 的调整电路连接, PC机 的 USB接口与图像采集装置连接。
Claims
1. 一种便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪, 由主控 单元、检测单元、采集单元、 上位机等组成, 其特征在于: 主控制单元(5) 接收到上位机 (6) 的执行命令, 驱动连接的憎水性检测单元 (1 )、 图像采 集单元 (4) 获取憎水性检测单元 (1 ) 的测试图像数据, 并发送到上位机
(6) 进行存储和分析处理, 憎水性检测单元 (1 ) 由喷水装置及其驱动电 路组成。
2. 按权利要求 1 所述的便携式硅橡胶复合绝缘套管表面绝缘特性综合 测试仪, 其特征在于: 主控制单元 (5) 接收到上位机 (6) 的执行命令, 驱动连接的龟裂检测单元 (2)、 图像采集单元 (4) 获取龟裂检测单元 (2) 的测试图像数据, 并发送到上位机 (6) 并进行存储和分析处理, 龟裂检测 单元 (2) 由施压装置及其驱动电路组成。
3. 按权利要求 1或权利要求 2所述的便携式硅橡胶复合绝缘套管表面 绝缘特性综合测试仪, 其特征在于: 主控制单元 (5 ) 接收到上位机 (6) 的执行命令, 获取连接的漏电爬痕及电腐蚀检测单元(3)的回路电流数据, 并发送到上位机(6) 并进行存储和分析处理, 漏电爬痕及电腐蚀检测单元
( 3 ) 由滴液装置及其驱动电路和电流采集装置及其调理电路组成。
4. 按权利要求 1或权利要求 2所述的便携式硅橡胶复合绝缘套管表面 绝缘特性综合测试仪, 其特征在于: 主控制单元 (5) 和上位机 (6) 由 PC 机 (7) 取代。
5. 按权利要求 3所述的便携式硅橡胶复合绝缘套管表面绝缘特性综合 测试仪, 其特征在于: 主控制单元(5) 和上位机(6) 由 PC机 (7) 取代。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/979,330 US20130300859A1 (en) | 2011-09-16 | 2012-01-09 | All-purpose portable tester for isolation character of the surface of the composite bushing made from silicon rubber |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110286392.9A CN102435920B (zh) | 2011-09-16 | 2011-09-16 | 便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪 |
CN201110286392.9 | 2011-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013037177A1 true WO2013037177A1 (zh) | 2013-03-21 |
Family
ID=45984071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/000028 WO2013037177A1 (zh) | 2011-09-16 | 2012-01-09 | 便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130300859A1 (zh) |
CN (1) | CN102435920B (zh) |
WO (1) | WO2013037177A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102706777A (zh) * | 2012-06-18 | 2012-10-03 | 安徽省电力公司安庆供电公司 | 复合绝缘子憎水性便携式检测装置 |
CN105352854A (zh) * | 2015-11-24 | 2016-02-24 | 中国南方电网有限责任公司超高压输电公司广州局 | 一种针对绝缘子的无人机憎水试验平台 |
CN105911357A (zh) * | 2016-06-20 | 2016-08-31 | 李文军 | 一种绝缘材料生产检测系统 |
CN109490734B (zh) * | 2018-12-20 | 2020-10-23 | 上海平高天灵开关有限公司 | 一种高压绝缘件用快速性能检验装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1542440A (zh) * | 2003-11-04 | 2004-11-03 | 西安交通大学 | 基于电气绝缘材料耐漏电起痕性和耐电蚀损的检测装置 |
CN2745065Y (zh) * | 2004-08-06 | 2005-12-07 | 华北电力大学(北京) | 复合绝缘子憎水性及憎水迁移性在线检测装置 |
US20070185678A1 (en) * | 2006-02-03 | 2007-08-09 | The Boeing Company | System for trouble shooting and verifying operation of spare assets |
CN101403676A (zh) * | 2008-10-28 | 2009-04-08 | 华北电力大学 | 基于d-s证据理论的绝缘子憎水性等级融合判决方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8623185B2 (en) * | 2005-10-12 | 2014-01-07 | Southwest Research Institute | Planar multi-electrode array sensor for localized electrochemical corrosion detection |
WO2009033041A1 (en) * | 2007-09-07 | 2009-03-12 | The United States Of America, As Represented By The Secretary Of Agriculture | Egg micro-crack detection systems |
CN102053046B (zh) * | 2010-11-02 | 2012-08-08 | 武汉大学 | 一种合成绝缘子表面亲水角检定系统及方法 |
CN202267733U (zh) * | 2011-09-16 | 2012-06-06 | 山西省电力公司运城供电分公司 | 便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪 |
-
2011
- 2011-09-16 CN CN201110286392.9A patent/CN102435920B/zh active Active
-
2012
- 2012-01-09 US US13/979,330 patent/US20130300859A1/en not_active Abandoned
- 2012-01-09 WO PCT/CN2012/000028 patent/WO2013037177A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1542440A (zh) * | 2003-11-04 | 2004-11-03 | 西安交通大学 | 基于电气绝缘材料耐漏电起痕性和耐电蚀损的检测装置 |
CN2745065Y (zh) * | 2004-08-06 | 2005-12-07 | 华北电力大学(北京) | 复合绝缘子憎水性及憎水迁移性在线检测装置 |
US20070185678A1 (en) * | 2006-02-03 | 2007-08-09 | The Boeing Company | System for trouble shooting and verifying operation of spare assets |
CN101403676A (zh) * | 2008-10-28 | 2009-04-08 | 华北电力大学 | 基于d-s证据理论的绝缘子憎水性等级融合判决方法 |
Also Published As
Publication number | Publication date |
---|---|
US20130300859A1 (en) | 2013-11-14 |
CN102435920A (zh) | 2012-05-02 |
CN102435920B (zh) | 2015-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103792238B (zh) | 一种瓷质悬式绝缘子缺陷诊断方法 | |
Amin et al. | Monitoring of leakage current for composite insulators and electrical devices | |
CN202230150U (zh) | 一种光纤供电的电力避雷器在线监测智能终端 | |
CN104198929A (zh) | 一种户外高压隔离开关的检测装置及检测方法 | |
CN201540356U (zh) | 智能隔离开关在线监测装置 | |
WO2013037177A1 (zh) | 便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪 | |
CN202121209U (zh) | 一种智能高压开关设备 | |
CN110703136A (zh) | 一种输电线路绝缘子泄漏电流带电检测装置及方法 | |
CN207516488U (zh) | 一种基于极化去极化电流的电力电缆检测装置 | |
CN111025096B (zh) | 一种基于泄漏电流特征因子的xlpe电缆老化状态评估方法 | |
CN204214974U (zh) | 高压电力电缆终端在线监测装置 | |
CN202141752U (zh) | 一种金属氧化锌避雷器在线监测装置 | |
CN115675951A (zh) | 一种输配电线路巡检装置及其操作方法 | |
CN104407226A (zh) | 线路电缆接头接触电阻的带电测试方法 | |
CN206321763U (zh) | 户外高压隔离开关本体健康度监测装置 | |
CN205427140U (zh) | 基于dsp的高压断路器行程测试试验系统 | |
KR20120130942A (ko) | 폴리머 애자의 내오손 시험시스템 | |
CN107768056A (zh) | 一种内置电流互感器的避雷器及其使用方法 | |
CN103630800A (zh) | 绝缘子带电检测系统及绝缘子带电检测仪、手持接收终端 | |
CN204314367U (zh) | 一种高压开关柜绝缘件泄露电流测量传感装置 | |
CN206892253U (zh) | 绝缘子污秽监测系统 | |
CN206362868U (zh) | 避雷器在线智能监测系统 | |
CN204631106U (zh) | 悬垂绝缘子泄漏电流采集装置 | |
Lian et al. | Design of Insulation Online Monitoring and Anti-Condensation Control System for Distribution Switchgear | |
CN202267733U (zh) | 便携式硅橡胶复合绝缘套管表面绝缘特性综合测试仪 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12831396 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13979330 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12831396 Country of ref document: EP Kind code of ref document: A1 |